We provide you with the finest food-grade Diatomaceous Earth Powder for your dog or cat. Diatomaceous earth is the fossilized remains of microscopic shells created by one celled plants called diatoms. Our food grade diatomaceous earth comes from the finest fresh water deposits, to offer you the best quality diatomaceous earth. Food grade diatomaceous earth meets very strict regulations in terms of crystalline silica (must be less that 1%) and heavy metal content, making it safe for animals to consume.