Effects of Mediterranean diet on sexual function in people with newly diagnosed type 2 diabetes: The MÈDITA trial

Abstract

Aims: To assess the long-term effect of Mediterranean diet, as compared with low-fat diet, on sexual function in patients with newly diagnosed type 2 diabetes.

Methods: In a randomized clinical trial, with a total follow-up of 8.1years, 215 men and women with newly diagnosed type 2 diabetes were assigned to Mediterranean diet (n=108) or a low-fat diet (n=107). The primary outcome measures were changes of erectile function (IIEF) in diabetic men and of female sexual function (FSFI) in diabetic women.

Results: There was no difference in baseline sexual function in men (n=54 vs 52) or women (n=54 vs 55) randomized to Mediterranean diet or low-fat diet, respectively (P=0.287, P=0.815). Over the entire follow-up, the changes of the primary outcomes were significantly lower in the Mediterranean diet group compared with the low-fat group: IIEF and FSFI showed a significantly lesser decrease (1.22 and 1.18, respectively, P=0.024 and 0.019) with the Mediterranean diet. Baseline C-reactive protein levels predicted erectile dysfunction in men but not female sexual dysfunction in women.

Conclusions: Among persons with newly diagnosed type 2 diabetes, a Mediterranean diet reduced the deterioration of sexual function over time in both sexes.

Trial registration: ClinicalTrials.gov NCT00725257.

Keywords: ED; Female sexual dysfunction; Mediterranean diet; Randomized controlled trial; Type 2 diabetes.