However, tocopherols have a very short shelf life, especially once the bag of food has been opened. Ascorbic acid is a synthetic form of vitamin C. Biotin is a natural B complex vitamin. Calcium carbonate is a natural form of calcium. Calcium oxide is a natural form of calcium. Calcium pantothenate is a high potency, synthetic source of vitamin B5.
Calcium phosphate is a calcium salt found in or derived from bones or bone meal.
Chloride or Chlorine is an essential mineral, usually found in compound form with sodium or potassium. Choline is a B vitamin found in eggs, liver and soy. Choline chloride is a high potency, synthetic source of choline. Cobalt is a trace element, an essential mineral and integral part of vitamin B12. Copper is a trace element, an essential mineral that can be toxic in excess.