A concentrated preparation of nature-identical compounds used to enrich the diet, abbreviated BADS in some regulatory contexts. The category covers vitamins, minerals, amino acids, plant extracts, and other bioactive substances sold in measured doses to supplement ordinary food. Unlike medicines, these products are not required to prove efficacy against disease before sale in most jurisdictions, though they must be safe and honestly labeled. The nature-identical description means the compounds match those found in nature chemically, whether extracted or synthesized. Quality varies enormously between manufacturers, from rigorously tested products to dubious concoctions, which is why third-party certification and realistic expectations matter. They supplement diets; they do not substitute for them.