Holistic Health Care examines the impact that disposition and environment have on your animals overall health. It differs from conventional care because it doesn't just treat symptoms, but rather seeks the underlying causes of an illness. The main wormer in WormGaurd is a more concentrated form of FDA approved Food Grade Diatomaceous Earth which consist of tiny phytoplankton's mainly composed of amorphous hydrated silicates, of less that 1%. This is packaged especially for poultry (with whole flax-does not need refrigeration)