Selenomethionine is readily available as a dietary supplement. It is a source of resveratrol, a dietary supplement. Nattokinase is sold as a dietary supplement. The species used as a dietary supplement is "Epimedium grandiflorum". Blackstrap molasses is sold as a food and dietary supplement. GABA is sold as a dietary supplement. "Chlorella" has only a niche market for companies promoting it as a dietary supplement. Caprylic acid is taken as a dietary supplement. It is also sold as a dietary supplement. Regulations often treat it as a food or dietary supplement. USP also conducts verification programs for dietary supplement products and ingredients. It is often referred to as "nutritional yeast" when sold as a dietary supplement. It is also used as a dietary supplement. Some people use it as a dietary supplement. Royal jelly is widely marketed as a dietary supplement.