Polycystic Ovary Syndrome (PCOS) makes weight loss harder due to insulin resistance. Weight loss medications work differently in PCOS patients.

PCOS & Weight Loss Challenge

Women with PCOS have insulin resistance (70% of cases), which promotes fat storage and makes calorie restriction less effective. Medications that improve insulin sensitivity or suppress appetite are particularly helpful.

Metformin: First-Line for PCOS

Metformin improves insulin sensitivity and aids weight loss (average 2-3kg over 6 months). Many PCOS patients take it for irregular periods, and weight loss is a bonus. Cost: NHS free if prescribed, or £5-10/month privately.

Orlistat & PCOS

Orlistat (Alli, Xenical) works in PCOS as it does in non-PCOS patients. No special interaction. Effective combined with metformin and low-GI diet. Expected loss: 2-4kg over 6 months.

GLP-1 Drugs (Wegovy, Mounjaro) & PCOS

GLP-1 agonists improve insulin sensitivity AND suppress appetite. Studies in PCOS show superior results vs standard diet. Some research suggests 8-12% body weight loss over 6 months (vs 2% with diet alone).

Limited NHS access for PCOS-specific weight loss, but increasingly available privately (£120-200/month).

Recommended PCOS Weight Loss Stack

Budget: Metformin (free NHS) plus low-GI diet plus exercise

Moderate: Metformin plus Orlistat (£99-150/month)

Comprehensive: Metformin plus GLP-1 drug (£120-200/month) plus lifestyle

Lifestyle Matters More in PCOS

Medications alone will not work. PCOS-specific approaches: low-GI diet, regular exercise (especially resistance training), stress management. Medications amplify lifestyle changes.

Talk to Your Doctor

PCOS is complex and individual. Work with your GP or PCOS specialist to build a personalized plan. Some fertility clinics offer integrated PCOS plus weight loss services.