Jha, Bharat2026-07-212026-07-212000https://hdl.handle.net/20.500.14572/6985Abstract For the maintenance of normal health, our diet requires adequate protein, energy substrates, vitamins and various inorganic salts and trace elements. None of the trace elements is required more than a milligram per day whereas the daily requirement for some is measurable in microgram. The WHO expert committee on trace elements in human nutrition (1973) has recognized 14 trace elements as essential for animal life: iron, iodine, fluorine, zinc, copper, cobalt, chromium, manganese, molybdenum, colenium, nickel, tin, silicon and vanadium. Keywords: Trace elements, nutritionen-USTrace elementsnutritionArticle