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White Plains, New York, May 17, 2017 — Vitamin D is currently the most popular dietary supplement among people who regularly use supplements according to a recent survey by Its popularity is driven by the fact that having sufficient vitamin D in the body is associated not only with maintaining strong bones but a reduced risk of falls, heart attack, high blood pressure, depression, rheumatoid arthritis, asthma and even colds.

So which are the best vitamin D supplements? To find out, purchased more than 40 popular vitamin D supplements, tested their quality, and compared their dosage and formulation.

Several products were discovered to contain lower amounts of ingredient than claimed or to take too long to break apart in disintegration tests and one was found to be contaminated with lead. Among those which successfully passed testing, identified its Top Picks. The results are now available in's new Vitamin D Supplements Review.

Although the cost to obtain the full recommended daily allowance (RDA) of vitamin D (600 IU for ages 1 to 70; 800 IU for age 70+) can be as much as one dollar, was able to identify many high-quality supplements providing this dose or more for as little as one penny. Among CL's Top Picks are liquid supplements, as they easily allow for variable dosing. For higher doses and for combination products (including calcium, vitamin K, and/or magnesium), CL's Top Picks include tablets, a chew, and a gummy.

An important part of the Review is information on when and how to safely use vitamin D, based on the findings of clinical studies. For example, consumers may not be aware that getting too much vitamin D can be detrimental and reverse some of its benefits. The Review also points out that the current Supplement Facts panels on labels do not reflect the latest recommendations and should not be relied on for determining the % of the Daily Value for vitamin D a product provides. Updated labels are not expected until mid-2018 according to the latest information from the FDA.

The results are available online now in's Vitamin D Supplements Review ( and includes test results and quality comparisons for the following products 44 products which includes 24 supplements selected for testing by, 20 supplements which passed the same testing through CL's voluntary Quality Certification Program, as well as information about three products which are similar to one which passed testing: 365 (Whole Foods) Vitamin D3, AdvoCare Calcium Plus, AlgaeCal Plus, Baby Ddrops Vitamin D3, Bayer Citracal Petites, Bio Tech D3-50, Bluebonnet EarthSweet Chewables Calcium Magnesium & D3, Caltrate 600 + D3, ChildLife Liquid Calcium With Magnesium, CVS Pharmacy Vitamin D3, Doctor's Best Artery Prime With MenaQ7, Finest Nutrition (Walgreen) Vitamin D3, Garden of Life Vitamin Code RAW D3, GNC D-3, Jamieson D, Jarrow Formulas Bone-Up, Kirkland Signature (Costco) Calcium, Kirkland Signature (Costco) Vitamin D3, Kirkland Signature [Costco] Calcium Citrate Magnesium And Zinc, Life Extension Vitamin D3, L'il Critters Calcium Gummy Bears with D3, Member's Mark (Sam's Club] Vitamin D-3, Metagenics CalApatite Bone Builder With Magnesium, Nature Made D3, Nature's Bounty Calcium Magnesium Zinc, Nature's Bounty D3, Nature's Way Alive Calcium Bone Formula, NatureWise Vitamin D3, NOW Vitamin D-3 & K-2, Pure Encapsulations OsteoBalance, Puritan's Pride Sunvite Super-Potency Vitamin D3, RiteAid Pharmacy Vitamin D-3, Solgar Vitamin D3 (Cholecalciferol), Source Naturals Vitamin D-3, Spring Valley [Walmart] D3, Sundown Naturals Calcium Plus Vitamin D3, The Honest Co. Gummy Calcium & Vitamin D3, Thorne Research Vitamin D, Trader Joe's Calcium Citrate with Vitamin D, USANA Vitamin D, Viactiv Calcium Plus D - Milk Chocolate, Vitacost Vitamin D3, Vitafusion Vitamin D3, Vitamin World Calcium with Vitamin D3, Vitamin World Vitamin D3, Wellesse Calcium & Vitamin D3 and WHC UnoCardio.

Founded in 1999, is a leading provider of consumer information and independent evaluations of products that affect health and nutrition. Membership to is available online and provides immediate access to reviews of more than 1,000 products from over 400 brands. The company is privately held and based in Westchester, New York. It has no ownership from, or interest in, companies that manufacture, distribute, or sell consumer products.

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