What is a dietary supplement?
Metabolites, constituents, and extracts:
This is a catchall category for supplements synthesized or produced from whole ingredients. These include omega-3s, botanical extracts, and metabolites—something your body produces during normal metabolism but, in a supplement form, may help boost normal function.
You see these ingredients a lot in sports nutrition supplements, such as creatine monohydrate, a metabolite of the organic acid creatine (prevalent in raw fish and meat) that's used to supply energy to your body's cells, especially muscles.