Thunderbrook Magnesium Chelate

Thunderbrook Magnesium chelate. A supplemental form of magnesium for the diet, in the form of a white powder.
Magnesium bound to a proprietary amino acid blend.
40% elemental magnesium.
Bioavailability estimated greater than 90%.

Feeding rate: up to 15g per day for a large horse, 10g per day for a pony