Understanding Orlistat's Fat-Blocking Mechanism
How Orlistat Blocks Fat Absorption
Orlistat works through a scientifically proven mechanism that targets lipase enzymes in your digestive system. These enzymes are responsible for breaking down dietary fat so it can be absorbed into your bloodstream. When you take orlistat 120mg with meals, it inhibits approximately one third of these lipase enzymes, preventing the breakdown and absorption of roughly one third of the fat you consume. This unabsorbed fat passes naturally through your body, reducing the calories absorbed from your meals.
Why This Mechanism Matters for Weight Loss
The fat-blocking action of orlistat provides measurable calorie reduction that can support your weight management goals. Since fat contains 9 calories per gram compared to 4 calories for protein or carbohydrates, blocking fat absorption has a significant impact on your daily calorie intake. At EverydayMeds, our orlistat 120mg costs £32.99 for 4 weeks (£29.69 with code EDM10), making this proven mechanism accessible through our GPhC-registered online pharmacy following clinical assessment.
Orlistat vs Xenical - Same Fat-Blocking Power
Both generic orlistat 120mg and branded Xenical 120mg contain identical active ingredients and block approximately one third of dietary fat through the same mechanism. The key difference is cost - our generic orlistat 8-week supply costs £63.99 (£57.59 with EDM10) compared to Xenical at £86.99 (£78.29 with EDM10). Whether you choose generic or branded, you get the same fat-blocking mechanism that works locally in your gut without affecting your central nervous system.
Combining Orlistat with Diet for Maximum Effect
Orlistat's fat-blocking mechanism works most effectively when combined with a reduced-calorie, lower-fat diet. Keeping meals to approximately 15g fat helps minimise gastrointestinal side effects while maximising the medication's benefits. The mechanism is directly proportional - higher fat meals mean more unabsorbed fat passing through your system, which can cause uncomfortable side effects but proves the medication is working as intended.
Getting Started with Fat-Blocking Treatment
Understanding how orlistat blocks approximately one third of dietary fat helps you make an informed decision about this prescription weight loss medication. Our UK-licensed prescribers assess your suitability through an online clinical consultation, and if appropriate, your medication is dispensed by our Leicester-based GPhC-registered pharmacy. With 12-week supplies from £86.39 (using code EDM10), you can access this proven fat-blocking mechanism with next-day delivery across the UK.


