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Calcium Supplements Reviewed by

Calcium Supplements Review

Find the best calcium supplements based on our tests and reviews, and know which products that failed, and see our Top Picks based on quality, dose, and cost. Learn about the best sources of calcium, including from foods, the recommended daily intake, and possible side effects of calcium.

Other Related Product Reviews Found:
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1.Multivitamin and Multimineral Supplements Review  *
2.Vitamin K Supplements Review (Including Calcium, Vitamin D, Magnesium & Boron)  *
3.Protein Powders, Shakes, and Drinks Review  *
4.Magnesium Supplements Review (Including Calcium, Vitamins D & K, and Boron)
5.Vitamin D Supplements Review (Including Calcium, Vitamin K, Magnesium, and Boron)
6.Garcinia Cambogia (HCA) Supplements Review  *
7.Meal Replacement & Weight Management Powders and Shakes Review  *
8.Lactose Intolerance Products Review (Lactase Enzymes and Lactose-Free Milks)  *
9.Lysine Supplements Review  *
10.Vitamin C Supplements Review  *
11.Boron Supplements Review (Including Calcium, Magnesium, and Vitamins D & K)
12.L-Tryptophan and 5-Hydroxytryptophan (5-HTP) Supplements  *
13.Iron Supplements Review  *
14.Bone Broth Review  *
15.Coconut Waters Review  *
16.Menopause Supplements Review (Soy and Red Clover Isoflavones, Black Cohosh) and Progesterone Creams  *
17.Inactive Ingredients / Excipients in Supplements  *
18.Chromium Supplements Review  *
19.Potassium Supplements Review  *
20.Canned Tuna and Salmon  *
21.Dark Chocolates, Cocoa & Cacao Powders, Nibs, and Supplements Review -- Sources of Flavanols  *
22.Lycopene Supplements Review  *
23.Joint Health Supplements for Pets Review (Glucosamine, Chondroitin, MSM & Boswellia)  *
24.Muscle & Workout Supplements Review (Creatine and Branched-chain Amino Acids)  *
25.Zinc Supplements and Lozenges Review  *
26.Baobab Dried Fruit Pulp Review Article  *
27.Turmeric and Curcumin Supplements and Spices Review  *
28.B Vitamin Supplements Review (B Complexes, B6, B12, Biotin, Folate, Niacin, Riboflavin & More)  *
29.Bilberry Supplements Review  *
30.Recommended Daily Intakes and Upper Limits for Vitamins and Minerals |
31.Joint Health Supplements Review (Glucosamine, Chondroitin, MSM and Boswellia)  *
32.Green Tea Review: Supplements, Brewable, Matcha, and Bottled  *
33.Plant-Based Milks (Almond, Cashew, Coconut, Flax, Hemp, Macademia, Oat, Pea, and Soy)
34.Melatonin Supplements Review  *
35.Alpha Lipoic Acid Supplements Review  *
36.Apple Cider Vinegar Review -- Bottled Liquids and Pills  *
37.Astaxanthin Supplements Review  *
38.Choline Supplements Review (Including Phosphatidylcholine, CDP-Choline, and Alpha-GPC)  *
39.DHEA Supplements Review  *
40.Kelp Supplements Review  *
41.Oat Cereals Review  *
42.Prostate Supplements Review (Saw Palmetto and Beta-Sitosterol)  *
43.St. John's Wort Supplements Review  *
44.Toprol XL vs. Generic Metoprolol Succinate Extended-release (ER) Tablets Review  *
45.Vitamin A Supplements Review, Including Beta-Carotene and Cod Liver Oil  *
46.Weight Loss Supplements Review (7-Keto DHEA, Forskolin and Stimulant Blend Supplements)
47.Where to Buy Supplements - From |
48.Chia Seed Review  *
49.Human Growth Hormone (HGH) and Insulin-like Growth Factor-1 (IGF-1) Supplements Review Article  *
50.Vision Supplements Review (with Lutein and Zeaxanthin)  *
51.Acai Berry Supplements and Beverages Review  *
52.Ashwagandha Supplements Review  *
53.Berberine and Goldenseal Supplements Review  *
54.Coconut Oil and Medium Chain Triglycerides (MCT Oil) Review  *
55.Garlic Supplements Review  *
56.Ginger Supplements & Ales Review  *
57.Greens and Whole Food Powders and Capsules  *
58.L-Arginine Supplements Review  *
59.Maca Supplements Review  *
60.Nattokinase Supplements Review  *
61.Probiotic Supplements Review (Including Pet Probiotics)  *
62.Quercetin Supplements Review  *

Encyclopedia Articles Found: (Articles do not mention brands)
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1.Natural & Alternative Treatments
3.Calcium Channel Blockers
4.Functional Foods Index
6.Kidney Stones
7.Thyroid Hormone
8.Lactose Intolerance
... More Results Answers to Questions Found:
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1.I have milk allergy and can't eat dairy. What's the best way for me to get calcium?
2.Is it safer to get calcium from foods than from supplements? How about from calcium-fortified orange juice and non-dairy milks?
3.I bought a lactose-free milk that is "calcium-fortified" and provides 50% of the Daily Value for calcium. Is that too much calcium?
4.Is it true that calcium citrate increases the absorption of aluminum?
5.Which supplements are important after bariatric surgery (i.e., weight loss or stomach-reducing surgery)? Are there any I should avoid?
6.Does taking one slow-release calcium tablet of 600 mg (such as Citracal) per day pose a risk for heart disease?
7.How much calcium from supplements is too much?
8.Is calcium hydroxyapatite really better than other forms of calcium?
9.What is Prelief? Does it really help for heartburn and/or bladder pain from acidic foods?
10.I've read of dangers from taking calcium supplements -- such as the risk of developing arterial calcifications. I can't seem to find a multivitamin without calcium. Can you help me?
11.Is there a danger of getting too much calcium from Tums? I take them frequently for heartburn.
12.Are plant-based calcium supplements, like AlgaeCal, better than regular calcium supplements?
13.I read an article stating that some of the ingredients in Centrum multivitamins may be dangerous or toxic. Is that true?
14.Is it important to take calcium and magnesium together?
15.Is it true that I need to drink more water or increase calcium intake when supplementing with protein powder?
16.What are the benefits of calcium-d-glucarate?
17.Is it true that taking calcium supplements increases the risk of developing age-related macular degeneration (AMD)?
18.Do any supplements help prevent or treat osteoporosis?
19.I enjoy oat milk in my coffee, but how healthy is it for me?
20.A blood test showed my vitamin D level is low. How do I know how much vitamin D to take?  (in Comments)
21.Which is the best form of magnesium to take - one that contains the most magnesium and is best absorbed?  (in Comments)
22.Can taking fish oil or calcium supplements increase my risk of prostate cancer? My doctor recommended that I stop taking them since I have an enlarged prostate.
23.Which vitamins and minerals should be taken together or separately?
24.Is it true that calcium interferes with iron absorption? Is it a problem to take a multivitamin containing both minerals?
25.What are the side effects of melatonin supplements?  (in Comments)
26.When is the best time of day to take a multivitamin?
27.Which supplements can cause constipation?
28.I take omeprazole (Prilosec), a proton pump inhibitor, to reduce stomach acid. Are there supplements I should avoid, or be taking, due to this drug?
29.Can vitamin supplements strengthen brittle nails?  (in Comments)
30.I've heard that soaking dried beans for 24 hours reduces the phytate level, allowing for greater access to nutrients. Is this true?
31.Is it possible to get too much vitamin D?
32.Is Greek yogurt a good source of protein?
33.I am having trouble sleeping. I regularly take a multivitamin, fish oil, magnesium, calcium, vitamins D and K, and a protein supplement. I also take a low-dose blood pressure medication. Could any of these supplements be causing my insomnia?
34.What is BioSil? Can it really increase collagen production and strengthen hair, skin, nails and bones?
35.Are there negative interactions between the following supplements I take twice each day, as well as 60 mg of beta-sitosterol with dinner: Vitamin C (500 mg), CoQ10 (100 mg), grape seed extract (100 mg), fish oil (500 mg), vitamin D3/calcium/magnesium/zinc (200 IU/333 mg/113 mg/5mg)?
36.I'm considering taking vitamin K for my bones, but I take blood thinner (anti-coagulant) medication. Is there a problem taking both?  (in Comments)
37.Why aren't there children's multivitamins specifically for girls vs. boys?
38.I'm interested in using Himalayan salt. What are the health benefits with it and other specialty salts? Are there contaminants in these salts?
39.Are there any supplements I should avoid when taking an antibiotic? Are there any that may be helpful?
40.Can taking certain forms of potassium, such as potassium citrate, reduce my chances of getting kidney stones? I've read a study that says it can, but it's unclear how much I should take.
41.I developed a rash after taking an iron supplement and then realized the supplement contained soy, to which I am allergic. Can your reports help me avoid soy and other allergens in supplements?
42.Is Ester-C the best form of vitamin C?
43.Is it true that some vitamins or supplements can cause cancer?
44.Is it true that vitamin D can increase the risk of prostate cancer in men?
45.Which supplements are helpful for age-related macular degeneration (AMD)?
46.After developing kidney stones, I was told to avoid tea -- but recently I've heard that green tea might actually be helpful for kidney stones. Is that true?
47.Can cocoa and chocolate cause kidney stones?
48.Does collagen taken as a supplement help with arthritis? I'm seeing it in products for joint health.  (in Comments)
49.Does Prevagen really improve memory?
50.I have to be careful about my sodium intake. Could my glucosamine and chondroitin supplement contain hidden sodium?
51.I read that famotidine (Pepcid) may help treat COVID-19. Is this true? Are there risks with taking famotidine?
52.Is it true that I should not keep magnesium supplements in a daily pill pack mixed with other supplements and medicines?  (in Comments)
53.Which supplements help to improve energy and decrease fatigue?  (in Comments)
54.Is it better to get vitamins from foods or supplements, and are natural vitamins better than synthetic vitamins?
55.Which supplements reduce the risk of stroke? Which increase the risk of stroke?
56.Help! How do I know how much magnesium I am actually getting from my supplement? The label says it contains 500 mg of magnesium "as magnesium citrate" -- but how much of that is magnesium and how much is citrate?
57.I have low blood pressure. Are there any supplements I should avoid?
58.Is there a multivitamin that contains only the recommended daily vitamins and minerals? Most that I have looked at contain more.
59.Is there cause for concern with "gummy vitamins?" There are many different gummies out there. Are some better than others?
60.Are supplements with amino acid chelated minerals better than those with other forms of minerals?
61.Can vitamin K2 really help decrease calcium in the arteries?
62.Do any supplements help reduce the symptoms of premenstrual syndrome (PMS)?
63.How do I choose the best magnesium supplement?
64.I take St. John's wort for depression. Your report notes that it can interact with other medications. Would taking it several hours apart from other meds avoid this interaction?
65.Is it possible to take too much vitamin C?  (in Comments)
66.Is it true that overdoses of vitamin D only occur when you don't get enough vitamin K?
67.What are natural remedies for coronavirus (COVID-19)? Do supplements like zinc, vitamin C, or herbals work?  (in Comments)
68.What is serrapeptase and does it work?  (in Comments)
69.Which supplements can help lower cholesterol and keep my heart healthy? Are there any to avoid?  (in Comments)
70.Are enteric coated supplements better than non-enteric coated ones?
71.Can lemon juice, lemonade, or other juices reduce my chances of getting kidney stones?
72.Do Sugar Bear Hair Vitamins make hair shine, nails stronger, and help both to grow? They taste good but are super expensive.
73.I was surprised when my doctor told me to stop taking supplements because my kidney function was low. But after stopping the supplements, my kidney function returned to normal. Can taking a lot of supplements really damage the kidneys?
74.Which supplements help reduce the risk of colorectal cancer?
75.Are there any supplements I should avoid when taking acetaminophen (Tylenol)?
76.As vitamin D is a fat-soluble vitamin, why is it necessary to take it every day?
77.Do turmeric and curcumin supplements contain significant amounts of oxalates? Can this increase my risk of kidney stones?
78.Does taking a laxative interfere with the absorption of vitamins or minerals?
79.How do the Beyond Burger, the Impossible Burger, and a beef burger compare in terms of vitamins and minerals, and which is best?
80.I take levothyroxine (Synthroid), a thyroid hormone to treat hypothyroidism. Are there supplements I should avoid, or be taking, due to this drug?
81.Sometimes my powdered supplements get clumpy. Should I be concerned?
82.Which dietary supplements and health foods contain high levels of lead?
83.Which supplements can help with indigestion and/or heartburn?
84.What is shilajit? Does it have any proven health benefits, and is heavy metal contamination a concern?
85.Are there vitamins or supplements that can reduce my risk of breast cancer? Do any increase cancer risk?  (in Comments)
86.Do any supplements improve balance or reduce the risk of falls?  (in Comments)
87.Can baking soda really help treat rheumatoid arthritis?
88.Can taking CoQ10 affect my thyroid levels or interact with my thyroid medication?
89.Do magnesium supplements, like Magtein, help memory or protect against Alzheimer's disease?
90.I asked the distributor of my cacao powder how it checks for metals. They say they do "foreign material detection" to capture "metal fragments." Is this adequate for checking cacao and cocoa for heavy metals, like cadmium, which you've found in other products?  (in Comments)
91.How much should I expect to pay for supplements? Are higher-priced supplements any better than low-priced brands?
92.Can taking too much fish oil be dangerous?
93.Do any supplements help for tinnitus? Is it true that some supplements can cause tinnitus?
94.What do alkaline booster drops do? Do they provide the same benefits as Kre-Alkalyn?
95.Which supplements can help treat constipation?
96.Can beta-sitosterol cause erectile dysfunction or low libido? Are there any other side effects?
97.Do any supplements really help with brain function, like memory and cognition?
98.Are cranberry supplements helpful for men? Can they help with symptoms of an enlarged prostate, prostatitis, or urinary tract infections?
99.Can prenatal vitamins have too much folic acid? Mine has 800 mcg, but isn't that more than what's recommended? Is this dangerous to me or my baby?
100.Do vitamin patches, such as for B12 or multivitamins, really work? How about those from PatchMD?
101.Does Restore (Bionic Sciences LLC) really improve gut health? What is in Restore?
102.I've heard that grapefruit juice can interact with medications because it inhibits an enzyme that breaks down drugs in the body. Do any supplements interact the same way with drugs?

Clinical Updates Found:
2020 Vitamin K for Bone Density? (02/18/2020)
Vitamin K for Bone Density?
Vitamin K (as MK-7) was given daily for one year to older men and women to see if it would improve bone mineral density. Some also received vitamin D and calcium. Find out if it helped, as well as the results of related studies, in the What It Does section of the Vitamin K Supplements Review. Also see our Top Picks among vitamin K supplements.
2019 Should Women Take Calcium? (10/22/2019)
Should Women Take Calcium?
Do women reduce bone loss and the risk of fractures if they take a calcium supplement? See what a recent study showed in the What It Does section of the Calcium Supplements Review. Also see our Top Picks for calcium supplements.
 Calcium Supplements and Macular Degeneration (03/23/2019)
Calcium Supplements and Macular Degeneration
Two large studies have sought to determine if there is an association between calcium supplementation and the risk of developing age-related macular degeneration (AMD). See what they found in the What It Does section of the Calcium Supplements Review. Also see our Top Picks among calcium supplements.
 Don't Take Minerals With Certain Supplements (01/15/2019)
Don't Take Minerals With Certain Supplements
Taking minerals like calcium and magnesium can dramatically reduce the absorption of carotenoids like lycopene, beta carotene, and astaxanthin. Get the details in the Concerns and Cautions section of the Lycopene Supplements Review.
2018 Caution With Calcium & Medications (11/27/2018)
Caution With Calcium & Medications
Which supplement was most likely to cause drug interactions for seniors in a recent study? Calcium. Learn more about potential drug interactions with calcium in the Concerns and Cautions section of the Calcium Supplements Review.
 Don't Take Calcium With Thyroid Hormone (10/29/2018)
Don't Take Calcium With Thyroid Hormone
A study showed negative effects of taking calcium too soon after taking levothyroxine (Synthroid). For details on how to safely take this combination, see the update in the Concerns and Cautions section of the Calcium Supplements Review. (Also see our Top Picks for calcium.)
 Calcium and Colon Polyp Risk (03/02/2018)
Calcium and Colon Polyp Risk
A large study evaluated the effects of taking calcium and/or vitamin D on the risk of developing precancerous colorectal polyps in people with previous polyps. While there was no effect during the study, a follow up study is now showing much higher rates of polyps among those who had taken certain supplements. Get the details in the What It Does section of the Calcium Supplements Review.
 Does Protein Hurt Bones? (02/07/2018)
Does Protein Hurt Bones?
It has been speculated that high-protein diets can result in calcium loss from bone. A recent study tested this. Get the results in the Concerns and Cautions section of the Protein Powders Review -- which also discusses a concern with dehydration. (If you use protein powders, see our Top Picks).
2017 How To Get Vitamin K From Food (06/08/2017)
How To Get Vitamin K From Food
Many of the benefits of vitamin K - such as proper blood clotting and calcium utilization for bone and heart health - are associated with getting adequate vitamin K from foods. The good news? Brand new research has found much higher amounts of vitamin K2 (the form associated with cardiovascular benefits) in dairy foods than previously known. However, the amounts vary tremendously depending on whether these foods are full-fat, or reduced-fat or fat-free. Get the details in the "Vitamin K from food" section of the Vitamin K Supplements Review. If you’re interested in a vitamin K supplement, see our Top Picks among brands.
 Stroke Risk with Calcium (05/24/2017)
Stroke Risk with Calcium
A new study shows that high-dose calcium supplements may double the risk of stroke in men and women. The risk of heart attack is also increased, as shown in other studies. However, there are ways to take calcium without this risk and still get bone health benefits. For details, see the "Concerns and Cautions" section of the Calcium Supplements Review >>
2016 Heart Concern With Calcium Supplements (10/13/2016)
Heart Concern With Calcium Supplements
A study of American men and women found an increased risk of coronary artery calcification (atherosclerosis) among those who used calcium supplements compared to those who did not, despite the fact that higher total daily calcium intake was associated with a decreased risk of calcification. Other studies point in a similar direction, as described in the "Concerns and Cautions" section of the Calcium Supplements Review >>
 Calcium Supplements & Risk of Dementia (08/20/2016)
Calcium Supplements & Risk of Dementia
Taking calcium supplements is associated with an increased risk of dementia in certain elderly women, according to a new study. Get the details in the "Cautions and Concerns” section of the Calcium Supplements Review >>
2015 Headlines Saying "Vitamin D and Calcium Don't Prevent Colon Cancer" Are Not Quite Right (10/17/2015)
Headlines Saying "Vitamin D and Calcium Don't Prevent Colon Cancer" Are Not Quite Right
A study released this week found that vitamin D and calcium supplements did not reduce the risk of developing colorectal polyps in people prone to them. A closer look at the study, however, suggests that this may not be true for everyone. Get the details in the update in the Vitamin D Supplements Review >> and the Calcium Supplements Review >>
 Calcium Supplements Increase Kidney Stone Growth (10/14/2015)
Calcium Supplements Increase Kidney Stone Growth
Calcium supplementation is known to increase the risk of kidney stones in postmenopausal women. A new study shows that taking calcium nearly doubles the monthly growth of such stones in women prone to getting them. The study also assessed the effects of vitamin D supplementation. Details are found in the Calcium Supplements Review >>
 Soy Isoflavones Maintain Bone Calcium (09/16/2015)
Soy Isoflavones Maintain Bone Calcium
A new study showed that soy isoflavones can reduce loss of calcium from bones in postmenopausal women. Certain formulations were more effective than others, although none was as effective as drug therapy. For details, see the Menopause Supplements Review >>
2014 Vitamin D & Calcium for Diabetes Due to Pregnancy (07/12/2014)
Vitamin D & Calcium for Diabetes Due to Pregnancy
A new study found supplementation with a combination of vitamin D and calcium improved fasting blood sugar levels, serum insulin levels, and insulin sensitivity in women with gestational (pregnancy-related) diabetes. For more details, including dosage, as well as our tests and comparisons of vitamin D and calcium supplements, see the update to the Vitamin D Supplements Review (Including Calcium, Vitamin K, Magnesium) >>   
 Vitamin D May Help Lower Blood Pressure (06/24/2014)
Vitamin D May Help Lower Blood Pressure
A recent study in people with mild to moderate high blood pressure showed that taking a vitamin D supplement helped lower blood pressure. Subjects in the study were already taking a calcium channel blocker (nifedipine), but taking vitamin D reduced blood pressure by several additional points. For details, including the dose of vitamin D used, as well as our tests of vitamin D supplements which can provide this dose, see the updated Vitamin D Supplements Review (Including Calcium, Vitamin K, and Magnesium) >>    
 Too Much Calcium for Some? (06/20/2014)
Too Much Calcium for Some?
A new study found that supplementing with even moderate amounts of calcium may cause abnormally high calcium levels in the urine (a risk factor for kidney stones) of some postmenopausal women, even when total calcium intake doesn't exceed the recommended daily allowance. Get the details in the update to the Calcium Supplements Review (Including Vitamin D, Vitamin K, and Magnesium) >>   
2013 Caution with Calcium for Women with High Cholesterol (11/03/2013)
Caution with Calcium for Women with High Cholesterol
A study in which women with high cholesterol  were given a daily calcium supplement showed a negative effect in those who were post-menopausal.  Get the details, including the calcium dosage used, in the updated Calcium Supplements Review>>
 Vitamin D for Post-Menopausal Women (10/06/2013)
Vitamin D for Post-Menopausal Women
A study compared the effects of low-dose and high-dose vitamin D on bone mineral density in post-menopausal women who were also supplemented with calcium. Both dosages helped prevent loss of bone mineral density, but the higher dose was less efficient in reducing bone turnover, i.e., bone loss, contrary to what the researchers expected.  For details, including dosage, see the updated Vitamin D Supplements Review>>
 When Vitamin D Doesn't Help (09/29/2013)
When Vitamin D Doesn't Help
A recent study in postmenopausal women in New York showed that taking a vitamin D supplement did not reduce bone loss (based on measurements of markers of bone turnover). However, calcium supplementation did appear to help. Why? It all has to do with how much vitamin D and calcium the women were already getting without the supplements. You can find out the amounts and get more details in the update to the Vitamin D Supplements Review >>
 Calcium During Breast Cancer Treatment (09/01/2013)
Calcium During Breast Cancer Treatment
A recent analysis of clinical studies concluded that supplementation with calcium and vitamin D during breast cancer treatment does not help maintain bone mineral density, although often given for this purpose. Calcium and vitamin D may certainly play other important roles. For more details, as well as test results and comparisons for 33 calcium supplements, see the updated Calcium Supplements Review >>
 Calcium and Vitamin D to Prevent Fractures (07/07/2013)
Calcium and Vitamin D to Prevent Fractures
A large study among post-menopausal women receiving hormone therapy showed a much lower rate of hip fracture among those who received a specific calcium/vitamin D supplement compared to those who did not get the supplement. For details about the supplement, as well as test results and comparisons for 13 calcium/vitamin D supplements, see the updated Calcium Supplements Review >>
 Calcium May Extend Life or Shorten It, Depending on Amount (06/02/2013)
Calcium May Extend Life or Shorten It, Depending on Amount
The right amount of calcium from supplements may reduce the risk of dying over a period of time for some people, says a new study. But too much calcium does not help. In fact, too much may hurt. Be sure you’re getting the right amount of calcium. Get the details (and our tests of calcium supplements) in the updated Calcium Supplements Review >>. (For a quick summary about calcium dosage, be sure to read the section "What You Need to Know About Calcium Supplements.")
 Magnesium and Bone Health (05/12/2013)
Magnesium and Bone Health
New research shows why getting adequate magnesium is important for bones -- but this doesn't mean that you must take a magnesium-containing supplement. Get more information in our updated Magnesium and Calcium-Magnesium Supplements Review >>
 Calcium Risk for Women (02/24/2013)
Calcium Risk for Women
A long-term study found that women with high calcium intakes from their diets were 40% more likely to die during the study than women with moderate calcium intake. Worse, the risk of death was 157% higher for women with high dietary calcium intake who also took a calcium supplement. What should you do? Get the details in the recent update to the Calcium Supplements Review and read our latest recommendations on calcium intake in the What You Need to Know section.)
 Risk from Too Much Calcium from Supplements (02/17/2013)
Risk from Too Much Calcium from Supplements
A major study found that adequate intake of calcium from the diet and other sources was associated with a lower risk of men and women dying from cardiovascular disease over the 12-year period of the study. HOWEVER getting over a certain amount of calcium from supplements was associated with 20% higher risk of men dying from cardiovascular disease. For more information, see the recent update to the Calcium Supplements Review >>
2012 Don't Take Vitamin D? (06/17/2012)
Don't Take Vitamin D?
Recommendations were published this week by an expert panel against the use of certain combinations of vitamin D and calcium in postmenopausal women to prevent fractures -- as the risks outweighed the benefits. However, this does not mean you shouldn’t take vitamin D. In fact the experts recommended that people at increased risk for falls should take vitamin D.  

Find out exactly what was recommended! Read the update to the Vitamin D Review. You’ll get a more complete picture of what vitamin D supplements can and can’t do, the latest information on what levels of vitamin D in your body seem optimal for overall health, and our test findings for vitamin D supplements. More >>
 Calcium supplements may increase the risk of heart attack (05/28/2012)
Calcium supplements may increase the risk of heart attack
A recent study found a much higher risk of heart attack among people who used calcium supplements than among those who did not. Increased calcium from food was not associated with increased risk. Some other recent studies have raised similar concerns about calcium supplementation. What does this mean for you? See our update to the Calcium Supplements Review for more information. More >>
2011 Women-Vitamin Study - Key Points (10/12/2011)
Women-Vitamin Study - Key Points
You may have heard this week about a new study which found a higher risk of death among women who used certain supplements. It’s a complicated study, but we've summarized some key findings. Bear in mind that only white women ages 55 to 69 were enrolled in the study and they were followed for 22 years.

Those taking calcium supplements had a 3.8% reduced risk of death. The calcium benefit ended, however, when taking more than 900 mg per day from supplements. It's worth noting that experts suggest many older women who take calcium supplements may not need to -- see the Calcium Supplement Review for more.

The mineral most strongly associated with an increased risk of death was iron, which showed a risk increase of 3.9% -- and the risk increased as the dose increased, particularly over 50 mg per day. However, the study grouped dosages of under 50 mg together, making it hard to determine the risk of low dosages of iron, such as those in many multivitamins. However, there is very little reason why a postmenopausal woman should be taking iron -- see the Iron Supplement Review for more.

Although not as statistically meaningful, other supplements were associated with the following increases in the risk of death during the study: multivitamins (2.4%), vitamin B6 (4.1%), folic acid (5.9%), magnesium (3.6%), zinc (3.0%), and copper (18.0%). An abstract of the study is online.

The bottom line: Don't take a supplement you don't need. If you want to know how much of each vitamin and mineral you need from your total diet and how much is too much, see our chart at
 Kidney Stones Linked to Calcium and Vitamin D Supplementation (07/20/2011)
Kidney Stones Linked to Calcium and Vitamin D Supplementation
A recent report showed that women taking a calcium and vitamin D supplement over a period of several years were 17% more likely to develop kidney stones than women who did not take the supplement. reviewed this study. While the findings are correct, there seems to be no reason to give up vitamin D supplements and a small concern with calcium supplementation. Get the details in the update to the Calcium Supplements Review >>. The new information is also found in an update in the Vitamin D Supplements Review >>.
 Calcium and Vitamin D for Girls (02/02/2011)
Calcium and Vitamin D for Girls
In a recently published study, girls ages 9 to 13 were given, twice a day, a supplement with calcium and vitamin D. After 6 months, significant increases were found in bone density and strength compared to girls who received placebo. Get the amounts and types of calcium and vitamin D taken, as well as more information, in the Review of Calcium Supplements or the Review of Vitamin D Supplements.

Recent Recalls and Warnings Found:
1.Hormonal Balance Supplement Tied to Liver Failure (01/04/2020)
2.Large Multivitamin, Calcium Pills Can Be a Choking Hazard for Older Adults (08/21/2019)
3.Dangerous Levels of Lead and Nickel Found in Kratom Products (04/09/2019)
4.Maker of Vitamin B12 and Multimineral Supplements Warned by FDA (07/18/2018)
5.FDA Warns Seller of Milk Thistle, Chromium, Joint Supplements & More for Manufacturing Violations (03/13/2018)
6.FDA Warns Dr. Carolyn Dean of Drug Claims Made for Magnesium, Calcium & Other Mineral Supplements (07/11/2017)

Archived Recalls and Warnings Found:
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1.Seller of Vitamin C, Calcium, Mushroom Supplements and More Warned for Manufacturing Violations (05/30/2017)
2.U.S. Department of Justice Files Permanent Injunction Against Supplement Manufacturer (02/16/2017)
3.Life Extension Warned for Drug Claims (02/14/2017)
4.FTC Charges Marketers of Prevagen With Making False Claims (01/10/2017)
5.Seller of Mineral, Joint Supplements and More Warned for Manufacturing Violations, Drug Claims (11/29/2016)
6.Liquid Multis, Vitamin D & More Recalled Due to Potential Bacterial Contamination (08/09/2016)
7.Some Supplements May Cause or Exacerbate Heart Failure (Includes vitamin E and many herbs) (08/06/2016)
8.Vitacost Settles Magnesium Supplement Lawsuit (06/11/2016)
9.Maker of Bone Health, Prostate, Cholesterol Supplements and More Warned for Drug Claims (03/29/2016)
10.Maker of Calcium and Vitamin C Supplements Warned for Manufacturing Violations (03/08/2016)
11.Multivitamins Recalled Due to Risk of Vitamin D Toxicity (12/01/2015)
12.23,000 ER Visits Linked to Supplements: Palpitations, Swallowing Problems, Allergies Common (10/17/2015)
13.Children and Adult Gummy Vitamins Recalled in Canada Due to Excessive Vitamin D (08/06/2015)
14.FDA Warns Maker of Fruit Energy Drinks for Drug Claims (06/11/2015)
15.Seller of Magnesium, Calcium, Silver and More Warned for Manufacturing Violations, Drug Claims (05/23/2015)
16.FTC Mails Refund Checks for Calcium Supplements (03/24/2015)
17.Maker of Magnesium, Calcium, Zinc, B Vitamins and More Warned for Manufacturing Violations, Drug Claims (03/10/2015)
18.Maker of Ginseng, Zinc, Calcium and More Warned for Manufacturing Violations (12/05/2014)
19.Seller of Vitamin C, Iron and Detox Supplements Warned for Violations, Drug Claims (10/30/2014)
20.Maker of Joint and Weight Products Warned for Hidden Drugs, Manufacturing Violations (09/23/2014)
21.Seller of Joint Supplement Warned for Manufacturing Violations and Drug Claims (08/21/2014)
22.Seller of Mineral and Joint Supplements Warned for Manufacturing Violations and Drug Claims (08/06/2014)
23.Seller of Aloe, Thyroid and Other Supplements Warned for Manufacturing Violations and Drug Claims (04/16/2014)
24.Seller of Aloe and Vitamin C Supplements Warned for Manufacturing Violations (03/05/2014)
25.Maker of Algae Products Warned For Drug Claims, Manufacturing Violations (08/01/2013)
26.Beware of Dietary Supplements With Claims To Treat Diabetes, FDA Warns (07/25/2013)
27.Seller of Vision Supplement Warned For Drug Claims (07/05/2013)
28.Seller of Sexual Enhancement, Cholesterol, Resveratrol Supplements and More Warned For Drug Claims (05/23/2013)
29.Joint Health Supplement Recalled for Undeclared Allergens (05/09/2013)
30.Probiotic Recalled Due To Undeclared Soy (03/21/2013)
31.Maker of Liquid Supplements Warned For Manufacturing Violations and Drug Claims (03/15/2013)
32.FDA Finds Manufacturing Violations At NSF-Certified Supplement Facility (03/02/2013)
33.Manufacturer of Heart, Multivitamin, Cranberry, and Longevity Supplements Warned For Adulteration and Drug Claims (02/13/2013)
34.Vitamin and Supplement Maker Warned For Labeling Errors, Manufacturing Violations (02/06/2013)
35.Maker of Blood Pressure, Probiotic, Resveratrol and Hormonal Supplements Warned For Manufacturing Violations and Drug Claims (11/21/2012)
36.Maker of Vitamin C, Aloe and Sexual Enhancement Supplements Warned for Drug Claims and Misbranding (11/14/2012)
37.Illegal Claims on Weight Loss, Immune System Dietary Supplements, and Few Backed by Clinical Data (10/05/2012)
38.Men’s Sexual Enhancement Supplement Containing Prescription Drug Recalled (09/18/2012)
39.Maker of Omega-3, Bone and Brain and Supplements Warned For Drug Claims (09/10/2012)
40.Makers of Mineral Water Containing Lithium Warned (08/09/2012)
41.Recall of Calcium-Vitamin D Product That's Actually Glucosamine -- Allergy Alert (01/17/2012)
42.FDA Warns Several Supplement Manufacturers Not Following Good Manufacturing Practices (09/08/2011)
43.Recall of Calcium & Magnesium Softgels Containing Excessive and Potentially Toxic Amounts of Vitamin D (06/22/2011)
44.Dangerously High Levels of Vitamins A and D in Product Prompt FDA Warning (03/28/2011)
45.FDA Warns of Stimulant in Slimming Capsules (10/08/2010)
46.Court Orders Marketers of Supreme Greens and Coral Calcium to Pay Nearly $70 Million for Consumer Refunds (08/31/2009)
47.FDA Warns Groups to Stop Selling Fake Cancer 'Cures' (06/19/2008)
48.FTC Files Against Maker of Calcium and Fertility Supplements (03/08/2007)
49.Deceptive Marketing of “Supreme Greens" -- Settlement with FTC (10/06/2005)
50.Ads for Various Diet Pills and Topical Gels Don’t Cut the Fat, Says the FTC (06/16/2004)
51.FTC Charges Marketers of Two Supplements with False Claims to Cure Range of Diseases (06/04/2004)
52.Aloe Producer Recalls Product Due to Toxic Levels of Vitamin D (04/01/2004)
53.Recall of Calcium Supplement Possibly Contaminated with Antibiotic (12/11/2002)

News Releases Found:
2020 Best Alternative Milks? ConsumerLab Tests Reveal What's Really in Plant-Based Milks (05/22/2020)
 Best and Worst Multivitamins Revealed by ConsumerLab -- Problems Found With 44% of Multis Tested (04/28/2020)
 Top-rated Vitamin and Supplement Brands and Merchants for 2020 Based on Consumer Satisfaction -- Results of the Survey of Vitamin & Supplement Users (02/25/2020)
2019 Top-rated Vitamin and Supplement Brands and Merchants for 2019 Based on Consumer Satisfaction -- Results of the Survey of Vitamin & Supplement Users (02/25/2019)
 CBD and Collagen Rise in Popularity, as Probiotics and Coconut Oil Dip in Latest ConsumerLab Survey of Supplement Users (02/24/2019)
2018 Top-rated Vitamin and Supplement Brands and Merchants for 2018 Based on Consumer Satisfaction (02/25/2018)
 Magnesium, Curcumin, and Apple Cider Vinegar Rise in Popularity, While Probiotics Dip and Calcium Continues to Decline in Latest Survey of Supplement Users (02/24/2018)
2017 Gummies Are Most Likely to Fail Testing in Review of Multivitamins -- Best and Worst Multivitamins Identified by ConsumerLab Testing (11/01/2017)
 Which Magnesium Is Best? Tests Popular Brands and Reveals Its Top Pick (06/21/2017)
 Best Vitamin K Supplement? Tests Popular Products and Reveals Its Top Picks (06/01/2017) Tests Reveal the Best Calcium Supplements (05/26/2017)
 Best Vitamin D? Tests Popular Vitamin D Supplements and Reveals Its Top Picks (05/17/2017) Reveals Best and Worst Turmeric and Curcumin Supplements & Spices -- 31% Fail Tests of Quality (04/04/2017)
 Top-rated Vitamin and Supplement Brands and Merchants for 2017 Based on Consumer Satisfaction (02/25/2017)
 Vitamin D Supplements Maintain Top Spot in Popularity, as Probiotics Surpass Multivitamins to #4 Behind Fish Oil and CoQ10 in Latest Survey (02/24/2017)
2016 Discovers Problems with Most Multivitamins for Dogs and Cats (07/29/2016) Helps Consumers Make Sense of the FDA's Updated Daily Values (DV) for Vitamins and Minerals (07/27/2016)
 Top-rated Vitamin and Supplement Brands and Merchants for 2016 Based on Consumer Satisfaction (02/25/2016)
 Vitamin D Supplements Jump to Top Spot in Popularity, Surpassing Fish Oil, as Probiotics Rise to #5 Spot Behind CoQ10 and Multivitamins in Survey (02/24/2016)
 Problems Found with 32% of Multivitamin/Multimineral Supplements -- Identifies Good Choices for Men, Women, and Children (01/12/2016)
2015 Some Surprising Results from Tests of 43 Probiotic Supplements and Kefir Drinks (11/06/2015) Tests Reveal Best and Worst Magnesium Supplements (06/10/2015)
 Best Supplements for Bone Health? Finds Products with Multiple Ingredients More Likely to Contain Wrong Amounts (04/28/2015) Shows Chinese Consumers What's Really in Foods and Supplements -- U.S. Testing Company Expands to China, Launches (03/05/2015)
 Use of Magnesium and Probiotics Rise, Multivitamins and Weight Loss Supplements Fall, According to Survey (02/28/2015)
 Top-rated Vitamin and Supplement Brands and Merchants for 2015 Based on Consumer Satisfaction -- Results of the Survey of Vitamin & Supplement Users (02/25/2015)
2014 Finds Popular Cocoa Powders Contaminated; High Concentrations of Cadmium Raise Concern (08/05/2014)
 Which Weight Loss Supplements Are Best? Reviews the Evidence and Tests the Quality of Popular Products (07/07/2014)
 Calcium, Vitamin C, and Fish Oil Supplements Drop in Use, Probiotics Rise According to Survey (02/13/2014)
 Top-rated Vitamin and Supplement Brands and Merchants for 2014 Based on Consumer Satisfaction -- Results of the Survey of Vitamin & Supplement Users (02/12/2014)
2013 Reports Problems with Some Vitamin D and Calcium Supplements -- Wrong Amounts of Vitamin D, Pills Which Don’t Break Apart, and Lead Contamination Found (02/11/2013)
 Top-rated Vitamin and Supplement Brands and Merchants for 2013 Based on Consumer Satisfaction
 Use of CoQ10, Digestive Enzymes, Probiotics and B Vitamins on the Rise According to Survey (01/31/2013)
2012 Identifies Best and Worst Magnesium Supplements Based on Tests and Comparisons (05/30/2012)
 Fish oil and multivitamins most popular supplements in survey -- Internet most popular place to shop (02/05/2012)
 Top-rated vitamin and supplement brands and merchants on consumer satisfaction for 2012 -- Based on Survey of Vitamin & Supplement Users (02/01/2012)
2011 Supplements for lactose intolerance vary in strength and cost, and some offer no benefit, according to (10/31/2011)
 Problems discovered with eight vitamin D supplements in study by -- Incorrect amounts of vitamins, lead contamination, and labeling infractions identified. (04/26/2011)
 Vitamin D use increased 52% in past two years according to survey of supplement users -- Fish oil continued to surpass multivitamins as most popular supplement and Internet was most common place to buy supplements (01/31/2011)
2010 Fish oil becomes most popular dietary supplement in survey; Vitamin D and resveratrol use surge (01/31/2010)
2009 Warns of Problems with Multivitamins and Vitamin Water -- Defects Found in Over 30% of Supplements Selected for Testing; Several Popular Children's Multis Exceed Tolerable Limits (03/31/2009) reports deficiencies in some supplements containing calcium, vitamin D, or vitamin K -- Focus on bone health supplements and new uses for vitamins D and K (03/10/2009)
 Survey shows fish oil nearly as popular as multivitamins among supplement users.  Most also take calcium and CoQ10 -- publishes 2009 Report on Vitamin & Supplement Users, including top-rated brands and merchants.  (02/03/2009) reports largest test of CoQ10 and ubiquinol supplements -- Most supplements provide claimed ingredient, but large variation in dosage and forms may confuse consumers. provides guidance. (01/13/2009)
2008 Tests of zinc supplements by show only some provide dosage proven to shorten colds, reduce eye disease.  Lead contamination found in one product. (12/09/2008)
 Adulteration Suspected with Some "Memory" Supplements -- Few Ginkgo and Huperzine Supplements Pass Tests; Quality High for Acetyl-L-Carnitine (11/18/2008)
 Tests reveal quality problems with vitamin A supplements -- New report focuses on vitamin A, including beta-carotene and cod liver oil (10/28/2008) finds melatonin supplements range in strength but ingredient quality is high (10/02/2008)'s tests of menopause supplements reveal wide range in strength and quality; mislabeling and contamination discovered -- Soy and red clover isoflavones, black cohosh, and progesterone products tested (09/17/2008) finds improvements in labeling of nutrition bars but potential pitfalls exist -- New report compares 20 bars, including those for protein, fiber, energy and whole food (08/12/2008) Find Fifty Fish Oil Supplements Pass Quality Testing -- New Report Helps Consumers Choose Among Pills, Liquids, Foods and Beverages with Omega-3 Fatty Acids (EPA and DHA) (08/05/2008)
2006 tests cancer-prevention supplements; several contaminated with lead or low in ingredient
— Report available for green tea, selenium, and lycopene supplements
(04/26/2006) reports on supplements for bone health containing calcium and vitamin D— Results posted for 32 supplements for adults and children; One found contaminated with lead (03/13/2006) finds most prostate supplements have correct ingredients, but three fail testing — Results posted for 22 supplements containing saw palmetto and beta-sitosterol (02/06/2006)
 Sexual enhancement supplements analyzed by (01/25/2006)
 Tests of memory enhancing supplements by reveals lead in some ginkgo (01/03/2006)
2005 Testing by identifies many problems with popular supplements for weight loss, slimming, and blood sugar control (11/15/2005) tests potassium supplements — Report now online for sixteen products (08/16/2005) tests menopause supplements — Alternatives to hormonal therapy — Report available for 38 products including soy and red clover isoflavones, black cohosh, and progesterone creams (07/18/2005) finds some supplements lower in omega-3 and omega-6 fatty acids than claimed — Report available for 23 products made from oils of black currant, borage, evening primrose and flax (07/12/2005)
 Two magnesium supplements fail testing due to lead contamination. Nineteen others pass. Report now available. (06/15/2005)
2003 finds lead in coral calcium product; Product also charged with false advertising by FTC — Calcium supplement product review published online today (06/10/2003)
 Consumers advised to read labels carefully when selecting herbal supplements for prostate — Saw palmetto product review published online today (05/20/2003)
 Low quality ingredient appears widespread among Ginkgo supplements according to; points to challenge for FDA's proposed regulations — Review of memory enhancement supplements released today (04/21/2003)
 Acidophilus" and other probiotic supplements gain in popularity but live bacteria missing in many — releases review online today (01/21/2003)
2002 finds lead contamination remains a problem for certain mineral supplements — Lead found in iron, magnesium and, most recently, potassium pills (07/16/2002)
 Pharmavite dietary supplements receive approval — Vitamin E, SAM-e, St. John's Wort, Ginkgo and others merit approved quality products ranking (07/10/2002)
 Athletic Banned Substances Screening and Certification Program announced by — Tester of supplements to screen for substances banned in Olympics (02/08/2002) finds most B vitamin supplements contain what they claim, but often exceed safe levels — Consumers cautioned to be aware of side effects with high dose products (01/08/2002)
2001 finds fish oil supplements free of mercury, but 30% lacking in key ingredient — Test results of omega-3 fatty acid (EPA and DHA) products released today (11/20/2001)
 Sixty percent of nutrition bars fail to meet claims in tests — "Low Carb" bars often loaded with carbohydrates; excess sodium and saturated fat also found (10/30/2001)
 Most iron supplements pass testing — Lead contamination and insufficient iron found in some (10/03/2001)
 Problems and ambiguity among alternative estrogen products reported by — Results of soy and red clover isoflavone product testing released online today (08/15/2001)
 Many herbal sleep products lack key claimed ingredient — Results of's testing of valerian products released on web today (07/09/2001) reports test results of arthritis supplement — MSM; Quality found higher than for most supplements, but room for improvement remains (06/04/2001)
 Over forty percent of Echinacea products fail review; Inadequate labeling and missing ingredients found common for popular herbal cold remedy (05/07/2001)
 Quality of popular herbal anti-depressant found to vary; certain types of St. John's Wort supplements more likely to pass testing (04/10/2001) expands testing of health products; success of dietary supplement evaluations leads company into broader nutrition field, beginning with popular nutrition bars (03/27/2001) review of vitamin E supplements finds some insufficiencies and need for clearer labeling; test results released online today (03/13/2001)
 Problems found with multivitamins and multiminerals by (02/14/2001)
 Some supplements for arthritis may exceed newly released safe intake levels for manganese (01/29/2001)
2000 tests popular supplement for heart failure; CoQ10 test results released online today (11/21/2000) finds new calcium products of higher quality than many traditional supplements; Test results released online today (09/06/2000) finds that not all creatine supplements meet label claims; Popular sports supplement test results released online (08/07/2000)
 Pesticide contamination found in many Ginseng supplements tested by (07/11/2000) announces first test-based buyer's guide to dietary supplements; Manufacturers encouraged to have products tested for potential inclusion. (04/24/2000)
 Quality of prostate supplements get mixed review in study; Saw palmetto product review published online today. (01/31/2000)
 Majority of dietary supplements sold in U.S. being tested by in 2000; newest results due January 31 for Saw Palmetto. (01/24/2000)


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