For men who have both diabetes and low testosterone, taking testosterone therapy might lower their chance of developing an irregular heartbeat called atrial fibrillation by about 9% over about three years.

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Evidence from Studies

Supporting (1)

59

Community contributions welcome

59

Testosterone therapy is associated with reduced risk of acute kidney injury, kidney failure with renal replacement therapy, and cardiovascular events in men with diabetes and hypogonadism

Cohort Study

Human

2025 Oct 1

This study found that diabetic men with low testosterone who took testosterone therapy had a slightly lower chance of developing an irregular heartbeat called atrial fibrillation, which is exactly what the claim says.

Contradicting (0)

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Testosterone therapy is associated with reduced risk of acute kidney injury, kidney failure with renal replacement therapy, and cardiovascular events in men with diabetes and hypogonadism

Score: 59

DOI: 10.1186/s12933-025-02930-2

Similar Assertions

For men with low testosterone, taking testosterone medicine might slightly raise the chance of having an irregular heartbeat, but we’re not sure if that’s actually important for their health.

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For men who have both diabetes and low testosterone, taking testosterone therapy might lower their chance of having a heart attack by about 15% over about three years.

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For men who have both diabetes and low testosterone, taking testosterone therapy might help them live longer — studies show they were 15% less likely to die over about 3 years compared to those who didn’t take it.

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For men with low testosterone, taking testosterone therapy doesn’t seem to raise their risk of heart problems, so doctors can prescribe it without worrying too much about the heart.

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For men over 40 with low testosterone, taking testosterone therapy might raise their risk of irregular heartbeats by more than half, which doctors should take seriously.

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