A product in capsule, tablet or liquid form that provide essential nutrients, such as a vitamin, an essential mineral, a protein, an herb, or similar nutritional substance.
Definition: A proteinogenic amino acid derivative resulting from reaction of L-tryptophan at the amino group or the carboxy group, or from the replacement of any hydrogen of L-tryptophan by a heteroatom.
Definition: Any member of the class of indole alkaloids isolated from a marine-derived Aspergillus fungus and derived from proline, tryptophan and one or two isoprene units. They are closely related to brevianamides, paraherquamides, marcfortines, asperparalines and stephacidins.