A nutritional supplement formulated specifically for horses for supplying additional intake of vitamins, nutrients and minerals. Guarantee % per lb. Iron Amino Acid Chelate* 3.2 gm 0.71% Copper Amino Acid Chelate* 636 mg 0.14% Magnesium Amino Acid Chelate 1.5 gm 0.33% Zinc Amino Acid Chelate* 4.0 gm 0.88% Phosphorus 22.7 gm 5.00% Calcium 22.7 gm 5.00% Potassium 9.1 gm 2.01%