Enzyme Inhibitors BCH 601(Advanced enzymology) Selenium bch 628 (advanced nutritional biochemistry) Calcium(ca) mineral bch 628(advanced nutritional biochemistry) Cobalt(co) bch 628 (advanced nutritional biochemistry) Iron mineral bch 628 (advanced nutritional biochemistry) Vitamin b1(thiamin) bch 628 (advanced nutritional biochemistry) 
