title: Letter: Apparent controversies related to chemically defined diets.
mesh_terms: D000818:Animals; D001646:Bile / Q000378:metabolism*; D004032:Diet; D004035:Diet Therapy; D004285:Dogs; D005750:Gastric Juice / Q000378:metabolism*; D005768:Gastrointestinal Hormones / Q000378:metabolism*; D006801:Humans; D010189:Pancreatic Juice / Q000378:metabolism*; D012636:Secretory Rate
chemical_list: D005768:Gastrointestinal Hormones