It is also used as a dietary supplement. Some people use it as a dietary supplement. GABA is sold as a dietary supplement. It is a source of resveratrol, a dietary supplement. It is sold as a nutritional supplement. The species used as a dietary supplement is "Epimedium grandiflorum". It is also used as a herbal supplement. Seeds and invertebrates may occasionally supplement the diet. Calcium gluconate is a mineral supplement and medication. The product is used as a health supplement. In Kenya, snakes, including venomous varieties, may regularly supplement the diet. Occasionally, they supplement their diets with fish and insects. DHA is widely used as a food supplement. Its classes can either supplement or substitute core coursework. They can supplement but not replace corticosteroid therapy.