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Magnesium
Magnesium for Horses: Does It Calm Them, How Much, and Which Form?
A 500 kg horse needs about 7.5 g of magnesium a day under NRC (2007) guidelines. Here is which form to feed, what the calming trials actually found, toxicity and kidney cautions, the USEF injectable magnesium sulfate ban, insulin claims, and how CBD compares.
