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Randomised trialsIntimate health

Better erections

Published in
JAMA 2004
People studied
110

In a trial of 110 men with obesity and erectile dysfunction, 31% in a weight-loss and activity programme reached a normal erectile function score after 2 years, against about 5% with general advice.

Checked against
PubMed 15213209
Published in
JAMA 2004
Last checked
30 October 2026

Key takeaway

110 men with obesity and erectile dysfunction, without diabetes, high blood pressure or high cholesterol, were randomly given detailed advice on losing 10% or more by eating less and moving more, or general advice. After 2 years BMI fell from about 37 to 31 in the programme group. 17 of 55 men (31%) reached a normal erectile function score, against 3 of 55 (about 5%) in the comparison group.

At a glance

Type of study
randomised trial
People studied
110
How long
2 years
Compared with
men given general advice on healthy food and exercise
Main result
31% reached normal erectile function, against about 5%.
Strength of evidence
Randomised trials

What this study does not show

One centre in Italy, in men aged 35 to 55 without other major conditions. About two thirds of the men in the programme did not reach normal function.

Results from studies in groups of people, mostly in diet and movement programmes. They cannot be promised to any one person. This information is educational and does not replace a consultation with a doctor.

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