Printer Friendly tests reveal best and worst magnesium supplements.

Magnesium supplements have become extremely popular, surpassing even calcium among frequent users of supplements. However, recent tests by reveal that not all magnesium supplements contain what they claim--and higher cost doesn't mean higher quality. In fact, some supplements that passed's tests cost just a few cents per dose, while others costing 20 times as much failed. One widely promoted and relatively expensive product, for example, contained only 61.5% of its listed magnesium. Among the 18 products selected for review, 3 failed testing and 15 were approved for quality.

Magnesium is now the most popular mineral supplement and the sixth most popular supplement overall, according to a recent survey by ConsumerLab. com of more than 10,000 supplement users, with use increasing to 43.1% of respondents compared with 38.1% last year. (1) Sales of magnesium supplements increased 16.7% in 2014, according to Nutrition Business Journal, reaching $680 million. While magnesium deficiency is rare, supplements may be helpful for conditions such as constipation, heartburn, migraines, and menstrual pain and is often touted for leg cramps. tested popular magnesium supplements to determine whether they contained the amount of magnesium and/or other key ingredients claimed on the label, were not contaminated with heavy metals, and, if in tablet form, were able to properly break apart.

The test results and quality ratings appear online in's new Magnesium Supplements Review. (2) The report covers 18 products selected by and 17 others which passed the same tests in ConsumerLab. corn's voluntary Quality Certification Program. Also included are 2 products similar to one that passed testing but which are sold under different brand names. The report discusses the evidence for/against using magnesium for a variety of conditions and the different forms of magnesium (such as citrate, chloride, and oxide), and explains which forms are better absorbed and less likely to cause side effects. Information about dosage and potential drug interactions is also presented.

The following products are included in the report: Bayer Citracal Slow Release 1200, The Vitamin Shoppe Calm Zone Magnesium, Caltrate 600+D Plus Minerals, Cardiovascular Research Ltd. Magnesium Taurate, Carlson Chelated Magnesium, ChildLife Liquid Calcium With Magnesium, Country Life Bone Solid, Doctor's Best High Absorption 100% Chelated Magnesium, Finest Nutrition [Walgreens] Magnesium, GNC Calcium Plus 1000, Jarrow Formulas Bone-Up, Jarrow Formulas MagMind, Jigsaw Health Magnesium w/SRT, Kirkland Signature (Costco) Calcium Citrate Magnesium and Zinc, Kirkland Signature [Costco] Magnesium Citrate, LifeExtension Magnesium Caps, Nature Made Calcium Magnesium Zinc, Nature's Bounty High Potency Magnesium, Nature's Way Alive Calcium Bone Formula, NutriCology Magnesium Chloride Liquid, Nutrilite Cal Mag D Advanced, Magnesium Chloride, Pure Encapsulations Magnesium (Glycinate), Rainbow Light Food Based Calcium, ReMag Magnesium Solution, Rexall Magnesium, Shaklee Osteomatrix, Solgar Magnesium Citrate, Source Naturals Magnesium Malate, Spring Valley [Walmart] Magnesium Citrate, Trace Minerals Research ConcenTrace, TwinLab Magnesium Caps, USANA Active Calcium, and Vitacost Magnesium Ultra.

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 1000 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.


(1.) Use of magnesium and probiotics rise, multivitamins and weight loss supplements fall, according to ConsumerLab. com survey [online article]. Feb. 28, 2015. Use%20of%20Magnesium%20and%20Probiotics%20 Rise/2_28_2015.

(2.) identifies best quality magnesium supplements and shows how to choose the right type [online report]. June 6, 2015. Available at magnesium-supplement-review/magnesium.

by Tori Hudson, ND and

Dr. Tori Hudson graduated from the National College of Naturopathic Medicine (NCNM) in 1984 and has served the college in many capacities. She is currently clinical professor at NCNM and Bastyr University, has been in practice for over 31 years, and is medical director of the clinic A Woman's Time in Portland, Oregon. She is the author of the book Women's Encyclopedia of Natural Medicine; a contributing author to several books, including the Textbook of Natural Medicine; and director of research and education for Vitanica, a supplement company for women. She is a nationally recognized author, speaker, educator, researcher, and clinician.
COPYRIGHT 2015 The Townsend Letter Group
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2015 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Title Annotation:Women's Health Update
Author:Hudson, Tori
Publication:Townsend Letter
Date:Oct 1, 2015
Previous Article:Omega-3s and mental health.
Next Article:The $50,000 physical.

Terms of use | Privacy policy | Copyright © 2018 Farlex, Inc. | Feedback | For webmasters