Research

Hormonal

Obesity pharmacotherapy (GLP-1/GIP agonists) reduces body weight with minimal loss of lean mass and improves cardiovascular outcomes, potentially mitigating the adverse effects of intermittent fasting.

If you are considering obesity pharmacotherapy (like GLP-1 agonists), know that it can lead to significant weight loss (up to 21% in some trials) with minimal loss of muscle mass, which is a key advantage over intermittent fasting. It also reduces cardiovascular risk. However, long-term safety is still being studied, and combining it with lifestyle changes (diet and exercise) is recommended for the best outcomes.

GoodSupportsHIGH confidence
treatment with tirzepatide, liraglutide or semaglutide reduces body weight with small effects on lean mass... Obesity pharmacotherapy reduces food intake and enhances satiety without the need to alter meal timing... Overweight or obesity patients without T2D but with preexisting CVD experience a marked decrease in the incidence of cardiovascular death, nonfatal myocardial infarction, or nonfatal stroke while on semaglutide treatment
Aristides G. Eliopoulos et al. · Frontiers in Nutrition · 2025

Why this rating

Based on large-scale clinical trials (e.g., SURMOUNT-3, semaglutide trials) showing significant weight loss and cardiovascular benefits.

Source

A perspective on intermittent fasting and cardiovascular risk in the era of obesity pharmacotherapy

Aristides G. Eliopoulos et al. · Frontiers in Nutrition · 2025

DOI 10.3389/fnut.2025.1524125

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DOI resolved against Crossref · corpus check 2026-06-10

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