Miner-All is the only human grade calcium supplement scientifically formulated with over 50 vital minerals, including rare earth elements, ensuring optimum health and bone strength for your reptiles and amphibians. The high quality of our premium fresh ingredients means they're absorbed easily by snakes, lizards, turtles, tortoises, frogs, toads, newts, and salamanders. Miner-All is ground to an unprecedented micro-fine powder, easily sticking to all insects from crickets to fruit flies. It'll even stick to feeder fish for approximately 24 hours. Don't purchase oyster shell-based calcium powders. We never use oyster shell products because they often contain pollutants and toxic heavy metals including mercury, lead, and arsenic. Avoid the common mistake of using a powder supplement that mixes vitamins and minerals together. Vitamins and minerals packaged together degrade each other, compromising the quality of both ingredients. INSTRUCTIONS FOR USE: Shake can to blend ingredients. CARNIVORES: Place feeder insects into plastic bag or bucket and shake gently until completely coated. HERBIVORES: Sprinkle 1/2 teaspoon over one pound of fruit or vegetables.