Why Understanding Orlistat's Mechanism Matters
How Orlistat Blocks Fat Absorption
Orlistat works through a targeted mechanism that inhibits lipase enzymes in your digestive system. These enzymes are responsible for breaking down dietary fat so it can be absorbed into your bloodstream. When orlistat blocks these enzymes, approximately one third of the fat you eat cannot be digested or absorbed. This unabsorbed fat passes naturally through your body, reducing the calories you absorb from meals. Our orlistat 120mg is available from £16.89 for a 2-week supply, or £15.20 with code EDM10.
The Science Behind Fat Blocking
Unlike appetite suppressants that work in the brain, orlistat acts locally in your gut and is not significantly absorbed into your bloodstream. This targeted action means orlistat specifically addresses dietary fat while allowing normal digestion of proteins and carbohydrates. The mechanism is dose-dependent - Xenical and generic orlistat at 120mg provide maximum fat blocking, while Alli at 60mg offers a lower-strength option. Xenical 120mg costs £21.50 for 2 weeks (£19.35 with EDM10), whilst Alli 60mg starts from £28.99 for 4 weeks (£26.09 with EDM10).
Why This Mechanism Works for Weight Management
By blocking approximately one third of dietary fat absorption, orlistat can significantly reduce calorie intake when used alongside a reduced-calorie, lower-fat meal plan. Fat contains 9 calories per gram - more than twice the calories of protein or carbohydrates. When orlistat prevents fat absorption, those calories are eliminated rather than stored as body fat. This mechanism explains why orlistat is most effective when combined with a structured meal plan that distributes fat intake evenly across three main meals.
Optimising Results with Proper Meal Planning
Understanding orlistat's mechanism helps you plan meals effectively. Since the medication blocks approximately one third of fat from each meal, keeping individual meals low in fat (around 15g per meal) minimises side effects whilst maximising weight loss potential. High-fat meals increase the likelihood of gastrointestinal effects as more unabsorbed fat passes through your system. Our 8-week orlistat supply (£63.99, or £57.59 with EDM10) gives you time to establish an effective meal routine.
Start Your Treatment Today
Now you understand how orlistat's proven mechanism blocks fat absorption, you can make an informed decision about your weight management. Complete our online clinical assessment to have your suitability reviewed by a UK-licensed prescriber. Choose from orlistat 120mg (from £15.20), Xenical 120mg (from £19.35), or Alli 60mg (from £26.09) - all with 10% off using code EDM10 and free next-day delivery from our GPhC-registered pharmacy.
