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Product Review: Calcium Supplements (Including Vitamin D, Vitamin K, and Magnesium)
 

Intial Posting: 5/17/17 Last Update: 5/24/17
Calcium Supplements Reviewed by ConsumerLab.com Best Calcium Supplement? See ConsumerLab.com's Top Picks

Tests of Popular Calcium Supplements Including Combinations with Vitamin D, Vitamin K, and Magnesium

Alphabetical list of calcium supplements reviewed and rated in report
AdvoCare Calcium Plus Jarrow Formulas Bone-Up Puritan's Pride Chelated Calcium Magnesium Zinc
AlgaeCal Plus Kirkland Signature [Costco] Calcium 600 mg + D3 Sundown Naturals Calcium Magnesium and Zinc
Bayer Citracal Petites Kirkland Signature [Costco] Calcium Citrate Magnesium And Zinc Sundown Naturals Calcium Plus Vitamin D3
Bluebonnet EarthSweet Chewables Calcium Magnesium & D3 L'il Critters Calcium Gummy Bears with D3 Swanson Liquid Calcium & Magnesium
Caltrate 600 + D3 MegaFoods Calcium The Honest Co. Gummy Calcium & Vitamin D3
ChildLife Liquid Calcium With Magnesium Metagenics CalApatite Bone Builder With Magnesium Trader Joe's Calcium Citrate with Vitamin D
Country Life Target-Mins Calcium Magnesium Nature Made D3 Viactiv Calcium Plus D - Milk Chocolate
Douglas Laboratories Calcium Citrate Nature's Bounty Calcium Magnesium Zinc Vitamin World Calcium Magnesium Zinc
Finest Nutrition [Walgreens] Calcium, Magnesium & Zinc Nature's Way Alive Calcium Bone Formula Vitamin World Calcium with Vitamin D3
GNC Calcium Citrate Pure Encapsulations OsteoBalance Wellesse Calcium & Vitamin D3
AdvoCare Calcium Plus AlgaeCal Plus Bayer Citracal Petites Bluebonnet EarthSweet  Chewables Calcium Magnesium & D3 Caltrate 600 + D3 ChildLife Liquid Calcium With Magnesium Country Life Target-Mins Calcium Magnesium Douglas Laboratories Calcium Citrate Finest Nutrition [Walgreens] Calcium, Magnesium & Zinc GNC Calcium Citrate Jarrow Formulas Bone-Up Kirkland Signature [Costco] Calcium 600 mg + D3 Kirkland Signature [Costco] Calcium Citrate Magnesium And Zinc L'il Critters Calcium Gummy Bears with D3 MegaFoods Calcium Metagenics CalApatite Bone Builder With Magnesium Nature Made D3 Nature's Bounty Calcium Magnesium Zinc Nature's Way Alive Calcium Bone Formula Pure Encapsulations OsteoBalance Swanson Liquid Calcium & Magnesium The Honest Co. Gummy Calcium & Vitamin D3 Trader Joe's Calcium Citrate with Vitamin D Viactiv Calcium Plus D - Milk Chocolate Vitamin World Calcium Magnesium Zinc Vitamin World Calcium with Vitamin D3 Wellesse Calcium & Vitamin D3
Make sure the calcium supplement you take passed our review and is right for you! Isn't your health worth it?

Confused about calcium? With so many different forms, dosages and ingredient combinations (such as calcium with vitamin D or magnesium) available, it may be hard to know which product is best for you and your family. ConsumerLab.com's new review can help you choose the highest quality calcium supplement at the best value!

Calcium is critical for building and maintaining strong bones and preventing osteoporosis. It is also needed for the proper functioning of nerves, muscles, glands, and the cardiovascular system. But you need to be careful! Getting too much calcium from supplements can your risk of heart attack and kidney stones.

ConsumerLab.com tests found problems with some combination products — including one which failed to properly disintegrate in the allotted time, and another which contained less magnesium than claimed and was contaminated with lead. Fortunately, however, we also found a number of quality products which passed our tests and provide a reasonable dose of calcium -- some of which cost less than 5 cents per day.

You must become a ConsumerLab.com member to get the full test results for calcium supplements, including quality ratings and CL's Top Picks. You will get results for 27 calcium supplements: 18 selected for testing by ConsumerLab.com and 9 others that passed the same tests through CL's voluntary Quality Certification Program as well as information about three supplements similar to ones that passed testing.

In this comprehensive report, you'll discover:

    • Which calcium supplements failed our quality ratings and which passed -- including combinations with vitamin D, vitamin K, and magnesium 
    • CL's Top Picks for calcium supplements
    • Cost comparisons to help you choose a calcium supplement offering the best value based on amounts of elemental calcium
    • The pros and cons of different forms of calcium such as carbonate, citrate, gluconate, oyster shell, coral calcium and plant-based calcium --and which may be best for you
    • How much calcium you may already be getting from foods and other sources, such as antacids taken for heartburn
    • Recommendations on calcium dosage by age and gender and for specific uses, as well as how much calcium may be too much and how best to take calcium supplements
    • The best way to take calcium supplements and what to look for on labels
    • Potential drug interactions and side effects of calcium supplements

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Watch LIVE Q&A with CL founder, Dr. Tod Cooperman
ConsumerLab.com Answers -- for Calcium Supplements (Including Vitamin D, Vitamin K, and Magnesium)
Question:
I would like to know about different sources of vitamin K2. I have been told it is from natto or fermented soy and from a flower called geraniol. Can you tell me the difference? Is one source better than another? Get the answer >>

Question:
Is it better to get vitamins from foods or supplements, and are natural vitamins better than synthetic vitamins? Get the answer >>

Question:
I've been buying nutritional supplements in powder form, as I find them cheaper than tablets and capsules. I am concerned about the effect of air when I open the bottles daily because sometimes my powdered supplements get clumpy. Should I be concerned? Get the answer >>

Question:
Are supplements which claim increased absorption or improved bioavailability telling the truth? Is it worth paying more for these? Are there concerns? Get the answer >>

Question:
Which supplements are important after bariatric surgery (i.e., weight loss or stomach-reducing surgery)? Are there any I should avoid? Get the answer >>

Question:
Are enterically coated supplements better than non-enterically coated ones? Get the answer >>

Question:
Which supplements can help keep my heart healthy? Are there any to avoid? Get the answer >>

Question:
I take levothyroxine (Synthroid), a thyroid hormone to treat hypothyroidism. Are there supplements I should avoid, or be taking, due to this drug? Get the answer >>

Question:
How much calcium from supplements is too much? Get the answer >>

Question:
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? Get the answer >>

Question:
I have low blood pressure. Are there any supplements I should avoid? Get the answer >>

Question:
Is there cause for concern with "gummy vitamins?" There are many different gummies out there. Are some better than others? Get the answer >>

Question:
Does Prevagen really improve memory? Get the answer >>

Question:
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. Get the answer >>

Question:
Which supplements help reduce the risk of colorectal cancer? Get the answer >>

Question:
Is calcium hydroxyapatite really better than other forms of calcium? Get the answer >>

Question:
Is there a danger of getting too much calcium from Tums? I take them frequently for heartburn. Get the answer >>

Question:
Do any supplements help for tinnitus? Is it true that some supplements can cause tinnitus? Get the answer >>

Question:
Is it important to take calcium and magnesium together? Get the answer >>

Question:
Is it safer to get calcium from foods than from supplements? How about from calcium-fortified orange juice and non-dairy milks? Get the answer >>

Question:
Are plant-based calcium supplements, like AlgaeCal, better than regular calcium supplements? Get the answer >>

Question:
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)? Get the answer >>

Question:
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? Get the answer >>

Question:
Does taking one slow-release calcium tablet of 600 mg (such as Citracal) per day pose a risk for heart disease? Get the answer >>

Question:
Which supplements reduce the risk of stroke? Which increase the risk of stroke? Get the answer >>

Question:
I have milk allergy and can't eat dairy. What's the best way for me to get calcium? Get the answer >>

Question:
Which supplements can help with indigestion and/or heartburn? Get the answer >>

Question:
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? Get the answer >>

Question:
What is Prelief? Does it really help for heartburn and/or bladder pain from acidic foods? Get the answer >>

Question:
I read an article stating that some of the ingredients in Centrum multivitamins may be dangerous or toxic. Is that true? Get the answer >>

Question:
Are the "% DV" numbers on vitamin supplement labels really based on what I need? Get the answer >>

Question:
Are there any supplements I should avoid when taking an antibiotic? Are there any that may be helpful? Get the answer >>

Question:
Which supplements can help treat constipation? Get the answer >>

Question:
I've heard that soaking dried beans for 24 hours reduces the phytate level, allowing for greater access to nutrients. Is this true? Get the answer >>
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