taken from an article by bill misner


Diet and caloric intake influence the amount of Testosterone produced. Diets higher in protein, cholesterol, saturated fat, and total fat content tend to maintain higher Testosterone levels. One study[1] showed that decreasing fat calories from 40% to 25% while decreasing saturated fat and increasing polyunsaturated fats led to decreases in both total Testosterone[-18%] and free unbound Testosterone levels[-15%]. Upon resuming the original higher fat intake, Testosterone levels returned to original values. Subjects in this study ate -500 fewer calories on the lower fat diet, implicating both fat selection and caloric restriction with decreased Testosterone.