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There is a lot of confusion in the magnesium space. Which form is better? What is all of this elemental magnesium talk? 

Here’s the scoop, claims that magnesium oxide is better are based on misinterpreted comparisons, typically magnesium oxide vs magnesium citrate, and/or on something called elemental magnesium content, rather than true bioavailability. 

And here’s a hint, when you evaluate magnesium types using mineral physiology principles and broader magnesium literature, these claims are not supported. 

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Citations

• Schuette et al., 1994
  Bioavailability of magnesium diglycinate vs magnesium oxide
  Demonstrated alternative absorption mechanisms for chelated magnesium.
• Coudray et al., 2005
  Comparative absorption of different magnesium salts using stable isotopes
  Showed differences in absorption and retention across magnesium forms, salt only comparison.
• Schuchardt & Hahn, 2017
  Intestinal absorption and factors influencing magnesium bioavailability
  Comprehensive review of Mg transport mechanisms (TRPM6/7, passive vs active).
• Werner et al., 2019
  Magnesium citrate vs oxide bioavailability
  
  
• National Research Council (NRC), Nutrient Requirements of Horses
  Documents magnesium metabolism and absorption sites in horses.

Find all the Resource Listed Here: linktr.ee/equineenergymed

Audrey is not an MD or DVM and has never implied or claimed to be either. Audrey holds a Doctoral Degree of Traditional Naturopathy and a Masters Degree in Science. She created an evidenced-based anti-inflammatory nutrition program for equine and has successfully helped over 10k horses. This information is not meant to diagnose, prescribe for, treat, or cure, and is not a replacement for your veterinarian. These are my personal interpretations based on my education, skill and clinical experience.