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

Posted: 4/15/15 Last Update: 4/5/17 
Vitamin D Supplements Reviewed By Does Your Vitamin D Supplement Contain What's On the Label? Not All Do!

Find Out Now If Yours Passed!

Vitamin D supplements reviewed and rated (alphabetical)
Bayer Citracal Slow Release 1200 Jamieson D Shaklee Osteomatrix
Andorra Life Collagen Calcium Jarrow Formulas Bone-Up Simply Right (Sam's Club) Vitamin D3
Bayer Citracal Petites Kirkland Signature [Costco] Calcium Citrate Magnesium And Zinc Solgar Calcium Citrate with Vitamin D3
Bayer Flintstones Healthy Bone Support Calcium & Vitamin D3 Life Extension Vitamin D3 Source Naturals Vitamin D-3
Bluebonnet Earth Sweet Chewable Vitamin D3 Metagenics D3 Spring Valley [Walmart] Calcium
Caltrate 600+D Plus Minerals Nature Made Calcium Magnesium Zinc Swanson High-Potency Dry Vitamin D-3
Carlson Super Daily D3 Baby Nature Made Vitamin D 2000 IU Trader Joe's Calcium Citrate with Vitamin D
ChildLife Liquid Calcium With Magnesium Nature's Bounty D3 TwinLab D3 Dots
Country Life Bone Solid Nature's Way Alive Calcium Bone Formula USANA Active Calcium
CVS Pharmacy Calcium Nature's Way Alive Calcium Gummies USANA Vitamin D
DG Health [Dollar General] Calcium NOW Vitamin D-3 & K-2 Viactiv Calcium Plus D - Milk Chocolate
Finest Nutrition (Walgreens) Calcium Nutrilite Cal Mag D Advanced Vitamin World Sunvite Vitamin D3
Garden of Life Vitamin Code RAW D3 Puritan's Pride Sunvite Mega-Potency Vitamin D3 5000 WHC UnoCardio
GNC Calcium Plus 1000 with Magnesium & D3 Rainbow Light Food Based Calcium Whole Foods Vitamin D3
GNC Vitamin D-3 1000 RiteAid Pharmacy Vitamin D-3 Yummi Bears Vegetarian Sour Calcium + Vitamin D3
Make sure the vitamin D supplement you take passed our test and is right for you!
Isn't your health worth it?

Vitamin D plays a critical role in bone health, and adequate vitamin D levels in the blood are associated with reduced risk of heart attack, high blood pressure, depression, rheumatoid arthritis, asthma, allergy, and even colds. Adequate vitamin D has also been shown to strengthen muscles, improve sleep, and reduce the risk of falls, while too much vitamin D can have the oppositve effects. You must choose and use vitamin D supplements carefully if you want the best for you and your family.

Our tests found many quality supplements providing 400 IU to 5,000 IU of vitamin D, but we also found products which did not contain their claimed amounts of vitamin D: One contained too much vitamin D, and a children's product contained less than what was listed on the label.

We also tested combination vitamin D supplements for amounts of other key ingredients, such as calcium, vitamin K and magnesium. Tablets were tested to ensure they disintegrated properly to release their ingredients for absorption, and all supplements were tested for contamination with lead, arsenic and cadmium. 

You must be a member to get the full test results and vitamin D quality ratings for vitamin D supplements including combination products with calcium, magnesium, and/or vitamin K. You'll also get vitamin D cost comparisons to help you find the right product at the best price -- some costing only 1 cent per day. You will get results for 43 vitamin D supplements: 21 selected for testing by and 22 additional products that passed the same tests through CL's voluntary Quality Certification Program, as well as information about two supplements similar to ones that passed testing.  

In this comprehensive report, you'll discover:
    • Which vitamin D supplements failed our quality ratings and which passed -- including combinations with calcium, magnesium and/or vitamin K
    • Cost comparisons to help you choose the best vitamin D supplement for your money
    • What vitamin D can and can't do for you, and how too much can actually harm you
    • What is vitamin D, and is vitamin D2 or D3 best for you?
    • The best time to take vitamin D
    • What is vitamin D deficiency and how to gauge if your vitamin D levels are sufficient, too low, or too high -- and how this may differ if you are black
    • Vitamin D dosage based on your age, gender and needs
    • How to get vitamin D from the sun and from foods 
    • Side effects of vitamin D supplements and potential drug interactions

If you already are a member, SIGN IN now. Answers -- for Vitamin D Supplements Review (Including Calcium, Vitamin K, Magnesium)
Is it possible to get too much vitamin D? Get the answer >>

I recently read about a study showing an INCREASE in prostate cancer in men supplementing with vitamin D. Is this true? Get the answer >>

How likely are Americans to be deficient in vitamins or minerals? Get the answer >>

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

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 >>

What Is Marine-D3 and does it live up to anti-aging claims? Get the answer >>

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

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

As vitamin D is a fat-soluble vitamin, why is it necessary to take it every day? Get the answer >>

I'm thinking of changing my multivitamin, but the one I'm considering doesn't contain molybdenum. Most others have it. How important is molybdenum? Get the answer >>

I have been having dizziness for the past few months and am wondering if it could be a side effect of supplements I take. Which supplements cause dizziness? Get the answer >>

I'm taking Lumiday, a supplement to improve mood. It seems to help me but is it safe? Get the answer >>

Is it better to eat farmed salmon or wild salmon? Which one has more omega-3s and less contamination with PCBs, mercury, etc.? Get the answer >>

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

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

A blood test showed my vitamin D level is low. How do I know how much vitamin D to take? Get the answer >>

I read that aging lowers the body's capacity to produce vitamin D. Even regular sun exposure will not suffice and one may have to take a vitamin D3 supplement during old age to meet our body's regular requirements. Please comment on this. Get the answer >>

I spend a lot of time in the sun, especially in the summer. Does this mean my vitamin D levels could get too high? Get the answer >>

Is there a difference between taking vitamin D in the dry form versus the oil capsules? Is one better than the other? Get the answer >>

Which supplements can help to lower blood pressure? Get the answer >>

Do any supplements improve balance or reduce the risk of falls? Get the answer >>

Which supplements can help lower or control my blood sugar? Get the answer >>

If vitamin K absorption appears to be reduced by other fat-soluble vitamins, like vitamin D, why do some "bone health" supplements combine them? Should they be taken separately? Get the answer >>

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

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

I've heard it's best to take fat-soluble supplements, like CoQ10, curcumin, and vitamin D, with fats or oils to increase absorption. Would taking them with a fish oil capsule be enough? Get the answer >>

I do moderate exercise for about an hour a few times a week. Which supplements might help me? Get the answer >>

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