Magnesium is a vital mineral involved in over 300 enzymatic reactions in the body․ Deficiency is common, leading to various health issues․ Supplementation can help, but choosing the right form is crucial․ Here’s a breakdown of common magnesium supplements, with examples․
Magnesium Oxide
Description: This is one of the most widely available and cheapest forms․ It contains a high percentage of elemental magnesium (around 60%)․
Absorption: Poorly absorbed by the body (around 4%)․ Often causes laxative effects․
Best For: Relieving occasional constipation․ Not ideal for raising magnesium levels․
Example Brands: Nature Made Magnesium Oxide, CVS Health Magnesium Oxide․
Magnesium Citrate
Description: Magnesium bound to citric acid․ More bioavailable than oxide․
Absorption: Better absorption (around 19-30%) than oxide․ Can still have a laxative effect, though generally milder․
Best For: Improving regularity, addressing mild magnesium deficiency․
Example Brands: NOW Foods Magnesium Citrate, Solgar Magnesium Citrate․
Magnesium Glycinate
Description: Magnesium bound to glycine, an amino acid․ Highly bioavailable and gentle on the stomach․
Absorption: Excellent absorption (around 80-90%)․ Less likely to cause diarrhea․
Best For: Improving sleep quality, reducing anxiety, supporting muscle function, and generally raising magnesium levels without digestive upset․
Example Brands: Doctor’s Best High Absorption Magnesium Glycinate, Natural Vitality Calm․
Magnesium Chloride
Description: Naturally found in seawater․ Available in oral supplements and topical forms (oils, flakes)․
Absorption: Good absorption, especially in topical form where it’s absorbed transdermally (through the skin)․
Best For: Muscle soreness (topical), improving magnesium levels (oral), skin health (topical)․
Example Brands: Ancient Minerals Magnesium Chloride Flakes, Life Extension Magnesium Chloride;
Magnesium Threonate
Description: A newer form of magnesium specifically designed to cross the blood-brain barrier․
Absorption: Good absorption, with potential cognitive benefits․
Best For: Improving memory, learning, and cognitive function․
Example Brands: Magtein Magnesium Threonate, Pure Encapsulations Magnesium Threonate․
Magnesium Sulfate (Epsom Salts)
Description: Commonly used in bath salts․
Absorption: Absorbed through the skin․
Best For: Soothing sore muscles, reducing inflammation, promoting relaxation;
Example Brands: Dr Teal’s Epsom Salt, San Francisco Salt Company Epsom Salt․
Important Considerations:
- Dosage: Follow label instructions or consult a healthcare professional․
- Interactions: Magnesium can interact with certain medications․
- Side Effects: Diarrhea is the most common side effect, especially with oxide and citrate․
