How Orlistat Works With Different Diet Approaches
Understanding Orlistat and High-Fat Diets
Orlistat works by blocking approximately one third of dietary fat absorption in your digestive system. This mechanism may conflict with ketogenic diets, which typically derive 70-80% of calories from fat. When high amounts of fat are consumed with orlistat, gastrointestinal side effects such as oily stools, urgent bowel movements, and oily discharge become significantly more likely and severe.
Clinical Assessment for Orlistat Treatment
Our UK-licensed prescribers assess each patient individually to determine whether orlistat may be appropriate alongside their chosen dietary approach. Orlistat 120mg is prescribed for adults with BMI 30+ or BMI 28+ with weight-related health conditions. Generic orlistat costs £32.99 for 4 weeks (£29.69 with EDM10), whilst branded Xenical costs £42.99 (£38.69 with EDM10). Complete our online consultation to discuss your suitability.
Orlistat Pricing and Pack Options
We offer flexible treatment durations to suit your weight management journey. Generic orlistat 120mg: 2 weeks £15.20, 4 weeks £29.69, 8 weeks £57.59, 12 weeks £86.39 (all with EDM10). Branded Xenical 120mg: 2 weeks £19.35, 4 weeks £38.69, 8 weeks £78.29, 12 weeks £116.09 (with EDM10). Both contain identical active ingredients - the difference is cost. Order today with code EDM10 for 10% off.
Alternative Approaches and Lower-Dose Options
For those following higher-fat dietary patterns, Alli 60mg may be considered as it provides half the dose of prescription-strength orlistat. However, this still requires reducing dietary fat to minimise side effects. Our prescribers can discuss whether modifying your dietary fat intake or considering alternative weight management strategies may be more appropriate than combining orlistat with very high-fat diets.
Professional Guidance and Safe Prescribing
Weight management approaches should be tailored to individual circumstances. Our GPhC-registered pharmacy provides regulated access to prescription orlistat following clinical assessment by qualified UK prescribers. We offer fast, discreet delivery across the UK with next-day options available. All medication is sourced through licensed UK pharmaceutical supply chains and MHRA-regulated processes.


