Electrolytes are minerals (magnesium, potassium, sodium, and calcium) that are lost through forms of dehydration, particularly in stress situations. Exo Terra Electrolyte and Vitamin D3 Supplement maintains a balanced electrolyte flow within body fluids and supplies Vitamin D3 for proper calcium absorption. Vitamin D3 is vital for captive reptiles not exposed to UV-light to prevent or reverse metabolic bone disease. - Restores and maintains electrolyte levels - Prevents or reverses metabolic bone disease - Helps in re-hydrating stressed animals - Stimulates appetite, activity and normal behaviour - Strengthens the immune system