Quest Vitamins LTD,
Impotence is the inability of the male to perform sexual intercourse
Impotence results from physical causes such as structural abnormalities of the genital organs; decreased activity of the thyroid and pituitary glands; Anaemia or other debilitating diseases; Fatigue; or chronic poisoning (drug addiction or Alcoholism). However, the most frequent cause of impotence is thought to be psychological in origin. Neuroses arising from negative attitudes toward interpersonal relationships established during childhood are sometimes related to habitual impotence.
1. Rimm EB, et al. Vitamin E consumption and the risk of Coronary Heart Disease in men. New Eng J Med 1993; 328:1450-56.