A micro-fine Calcium supplement with high levels of Vitamin D3. For species with high Vitamin D3 requirements, receiving little UVB radiation from natural or artificial sunlight. Also for therapeutic use. This product is manufactured using an extremely pure source of natural Calcium Carbonate from the Mohave desert which makes it a truly unique source for food, supplement, and pharmaceutical applications. It is FDA Food Grade Certified and is micro ground to an average size of 3.5 microns, and is the finest available grind on the market, which provides the ultimate stick when dusted onto insects. DIRECTIONS: This product should be the product of choice for species with high Vitamin D requirements that are kept with little or no UVB radiation from natural sunlight or UVB specialty bulbs. This product can also be used for treating early symptoms of metabolic bone disease (MBD). For species with normal Vitamin D requirements, we recommend Repashys SuperCal MeD, and for sensitive species, we recommend the use of Repashys SuperCal LoD. Dust insects using the shake and bake method before feeding to animals. For supplementing fresh fruit and vegetables, use 1 heaping Teaspoon per Pound. It is recommended that Repashys SuperVIte vitamin supplement be used at a 1:1 ratio to this product to provide a balance of essential vitamins. For an All-in -One solution please try Repashys Calcium Plus.