Low-Fat Diets May Decrease Testosterone Levels
Low levels of testosterone in men can lead to erectile dysfunction, reduced bone mass, and a diminished sex drive. A new study has found a link between low-fat diets and low serum testosterone levels in men.
Participants in the study included 3,128 men who took part in the National Health and Nutrition Examination Survey. All of them had completed a 2-day dietary history and had had their serum testosterone levels measured. The participants were placed into one of three categories based on their diet: low-fat, Mediterranean, or nonrestrictive.
The researchers found that participants who followed a low-fat or Mediterranean diet tended to have lower testosterone levels than those who followed a nonrestrictive diet. The average testosterone level for men in the nonrestrictive group was 435 ng/dl. The average for the low-fat group was 410.8 ng/dl and the average for the Mediterranean diet group was 412.9 ng/dl. These findings held after factoring in age, BMI, exercise habits, and medical history.
The study was conducted by researchers from the University of Chicago Medicine. It was published in the February, 2020 edition of The Journal of Urology.