Exercise
Exercise has multiple evidence-based benefits for people managing their weight — from modest direct fat loss to significant improvements in metabolic health and muscle preservation during drug treatment.
Quick read · 2 min
- •Exercise alone produces modest direct weight loss — but its metabolic health benefits are substantial regardless of weight change
- •You need at least 150 minutes of aerobic exercise per week for meaningful fat loss
- •Resistance training is especially important on GLP-1 drugs — it helps preserve muscle during weight loss
- •Diet plus exercise consistently outperforms either approach on its own
Based on clinical trials · No rankings · Every claim linked to source
Last reviewed: March 2026
Exercise for weight loss
What randomised trials show about aerobic exercise for fat loss — the dose required, and why diet plus exercise outperforms either alone.
Exercise for metabolic health
How exercise improves insulin sensitivity, blood pressure, and lipid profiles independently of weight loss.
Resistance training & muscle preservation
On GLP-1 drugs, approximately 25–40% of weight lost comes from lean mass. Resistance training is the most effective counter-strategy.
Types of exercise — what works
Aerobic, resistance, HIIT, and combined training — what each does and when to prioritise each approach.
Next step most people take
Exercise and GLP-1 drugs
The interaction between exercise and GLP-1 receptor agonists is particularly important. These drugs cause significant weight loss, but approximately 25–40% of that weight loss comes from lean mass rather than fat. Resistance training is the most evidence-based intervention to counter this and improve body composition outcomes.