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Calcium Supplements Reviewed by ConsumerLab.comProduct Review:
Calcium Supplements (Including Vitamin D, Vitamin K, and Magnesium)

Best Calcium Supplement? See ConsumerLab.com's Top Picks

Tests of Popular Calcium Supplements Including Combinations with Vitamin D, Vitamin K, and Magnesium
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Brands compared in report

AdvoCare Calcium Plus
AlgaeCal Plus
Andorra Life Collagen Calcium
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
Puritan's Pride Chelated Calcium Magnesium Zinc
Sundown Naturals Calcium Magnesium and Zinc
Sundown Naturals Calcium Plus Vitamin D3
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

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More about this report

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 28 calcium supplements: 18 selected for testing by ConsumerLab.com and 10 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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Related questions and answers

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Watch LIVE Q&A with CL founder, Dr. Tod Cooperman