Food and cyanide.
D000550:Amblyopia / Q000139:chemically induced; D001711:Biotransformation; D003486:Cyanides / Q000506:poisoning*; D004032:Diet; D006801:Humans; D010939:Plant Poisoning; D014805:Vitamin B 12 / Q000378:metabolism; D014806:Vitamin B 12 Deficiency
D003486:Cyanides; D014805:Vitamin B 12