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Calcium Supplements Review
Intial Posting: 5/17/17 Last Update: 3/23/19
Choose the Best Calcium Supplement
See Which Calcium Supplements Passed CL's Tests & the Top Picks
Alphabetical list of calcium supplements compared in this review
AdvoCare Calcium Plus
Jarrow Formulas Bone-Up
Puritan's Pride Chelated Calcium Magnesium Zinc
Kirkland Signature [Costco] Calcium 600 mg + D3
Sundown Naturals Calcium Magnesium and Zinc
Andorra Life Collagen Calcium
Kirkland Signature [Costco] Calcium Citrate Magnesium And Zinc
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 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 review, 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
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: 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: Do any supplements help reduce the symptoms of premenstrual syndrome (PMS)? Get the answer >>
Question: Is it true that calcium interferes with iron absorption? Is it a problem to take a multivitamin containing both minerals? 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: Is it true that calcium citrate increases the absorption of aluminum? Get the answer >>
Question: Which dietary supplements and health foods contain high levels of lead? 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: 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? 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 >>