DIRECTIONS: Dust insects by placing in a plastic bag and shaking lightly to coat insects with powder before feeding to animals. For supplementing fresh fruit and vegetables, use 1 heaping Teaspoon per Pound. INFORMATION: Our Calcium Carbonate is mined from the Mohave Desert in California, where it was deposited 300 million years ago during the Mississippian Age as a large graveyard of marine animals. Our calcium is micro ground to an average size of 3.5 microns, and provides the ultimate stick when dusted onto insects. INGREDIENTS: 100% Calcium Carbonate. (NoD) Other fomulas have added vitamin D As per below. Guaranteed Analysis HyD: Moisture max. 6%, Calcium min. 30%, Vitamin D 50,000 IU/lb. MeD: Moisture max. 6%, Calcium min. 30%, Vitamin D 25,000 IU/lb. LoD : Moisture max. 6%, Calcium min. 30%, Vitamin D 10,000 IU/lb. NoD: Moisture max. 6%, Calcium min. 30%, Vitamin D 0,000 IU/lb.