Nutrient Synergy: Magnesium and Vitamin D

Magnesium is one of the most commonly self-prescribed nutrients by many horse owners, breeders and riders. This mineral plays an essential role in more than 300 enzymatic reactions within the body. When prescribing magnesium, to derive optimal therapeutic benefit, it is essential to know the bioavailability of different forms of magnesium and its interactions (both beneficial and negative) with other nutrients and medications.

Recent research has highlighted that sufficient vitamin D is essential to optimise intestinal uptake of magnesium. This is a very important consideration, especially for those horses who spend much time stabled, rugged or in climates where UV exposure is low (think of temperate winter climates).

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