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Product Review: Magnesium and Calcium-Magnesium Supplements Review
 

Initial Posting: 5/25/12 Update: 1/11/15 
Mangesium and Calcium-Magnesium Supplements Reviewed by ConsumerLab.com ConsumerLab.com Identifies Best Quality Magnesium Supplements and Shows How to Choose the Right Type

Avoid Magnesium Supplements with Problems!

Magnesium and calcium/magnesium supplements in this review
Caltrate 600+D Plus Minerals MagOx 400 Slow-Mag Magnesium Chloride with Calcium
ChildLife Essentials Liquid Calcium with Magnesium Mag-Tab SR Solaray Magnesium Asporotate
Citracal Calcium + D Slow Release 1200 Melaleuca Vitality Calcium Complete Solgar Magnesium Citrate
CVS Pharmacy Magnesium Natural Vitality Natural Calm Standard Process Magnesium Lactate
CVS pharmacy Calcium Citrate + Vit. D3 Nature Made High Potency Magnesium Target Up & Up magnesium
Dr. Whitaker Osteo Essentials Nature's Bounty Magnesium Tropical Oasis Liquid Calcium Magnesium
Finest Natural (Walgreen) Magnesium New Chapter Bone Strength Take Care True Athlete ZMA with Theanine
GNC Calcimate Plus 800 NOW Calcium Citrate TwinLab Magnesium Caps
GNC Calcium Plus 1000 with Magnesium & D3 NOW Magnesium Citrate Vitacost Calcium Magnesium & Vitamin D
GNC Magnesium 500 NutriCology Magnesium Chloride Liquid Vitamin Shoppe Calcium Citrate + Magnesium and Vit. D
Jarrow Formulas Bone-Up Pure Essence Ionic-Fizz Super D-K Calcium Plus Vitamin Shoppe Minerals Magnesium Citrate
Life Extension Bone Restore Puritan's Pride Premium Magnesium Vitamin World Magnesium
Life Extension Magnesium Purity Products Magnificent Magnesium  
Make sure the magnesium supplement you take passed our quality review and is right for you!
Isn't your health worth it?
How do you choose the best magnesium supplement? ConsumerLab.com tested and reviewed many popular brands of magnesium and calcium magnesium supplements to help you avoid problems. One product contained only 45.1% of its listed magnesium and had other label inaccuracies. Another supplement would not properly break apart. One was contaminated with lead. Another made an illegal disease treatment claim. Fortunately, many other supplements were found to contain the magnesium they claimed, were free of lead contamination (which can occur in mineral supplements), and, if tablets, were able to properly break apart.
 
ConsumerLab.com then compared the magnesium supplements on cost, to help you find the best price and value. It found the cost to get an equivalent amount of magnesium ranged from 2 cents to well over $1.  But cost didn't coincide with quality -- some very high quality magnesium supplements were identified that cost only pennies a day.
 
You also need to be aware that many forms of magnesium are used in supplements and some have been shown to be better absorbed than others or more likely to cause diarrhea -- a common side-effect. ConsumerLab.com provides you with this information and factors it into its review of magnesium products.

In this comprehensive report about magnesium and calcium-magnesium supplements, you'll get test results and quality ratings for 37 supplements (including 20 that passed our Voluntary Certification Program) and information about two other products similar to those tested. You'll learn:
    • Which magnesium and calcium-magnesium supplements passed or failed ConsumerLab.com's testing and review
    • Quality ratings and comparisons of magnesium supplements
    • Important differences among forms of magnesium (e.g., magnesium aspartate and orotate, magnesium citrate, magnesium chloride, magnesium lactate and lactate dihydrate, and magnesium oxide)
    • Which foods are rich in magnesium 
    • The causes and symptoms of magnesium deficiency
    • The dosage of magnesium generally used in treating and preventing magnesium deficiency and other conditions 
    • Potential side-effects of magnesium supplements
    • And more! 

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ConsumerLab.com Answers -- for Magnesium and Calcium-Magnesium Supplements Review
Question:
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 >>

Question:
What is the benefit of magnesium orotate compared to other forms of magnesium? Get the answer >>

Question:
Are supplements with amino acid chelated minerals better than those with other forms of minerals? Get the answer >>

Question:
Are enterically coated supplements better than non-enterically coated ones? Get the answer >>

Question:
Do magnesium supplements help memory or protect against Alzheimer's disease? Get the answer >>

Question:
Do any supplements help with migraines? Get the answer >>

Question:
I have low blood pressure. Are there any supplements I should avoid? Get the answer >>

Question:
Which is the best form of magnesium to take - one that contains the most magnesium and is best absorbed? Get the answer >>
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