The Science Behind Orlistat's Fat-Blocking Action
How Orlistat Blocks Fat Absorption
Orlistat works by inhibiting lipase enzymes in your digestive system. These enzymes normally break down dietary fat so it can be absorbed into your bloodstream. When orlistat blocks these enzymes, approximately one third of the fat you consume cannot be digested or absorbed. This unabsorbed fat passes naturally through your body and is eliminated, reducing the calories your body takes in from dietary fat.
Why the Mechanism Proves Effectiveness
Unlike appetite suppressants that work in the brain, orlistat's fat-blocking action is measurable and predictable. Clinical studies demonstrate that orlistat consistently blocks approximately one third of dietary fat absorption when taken as directed. This mechanism directly reduces calorie intake from fat - the most calorie-dense macronutrient at 9 calories per gram.
Alli 60mg vs Prescription Strength Options
Alli 60mg capsules contain half the dose of prescription-strength orlistat, making them a lower-strength option. At £28.99 for 4 weeks (£26.09 with EDM10), Alli provides the same fat-blocking mechanism with typically milder side effects. Prescription-strength orlistat 120mg offers the full clinical dose at £32.99 for 4 weeks (£29.69 with EDM10), while branded Xenical 120mg provides identical active ingredient at £42.99 (£38.69 with EDM10).
What Happens to Blocked Fat
The approximately one third of dietary fat that orlistat blocks from absorption doesn't disappear - it passes through your digestive system unchanged. This is why following a lower-fat diet is essential when taking orlistat. High-fat meals increase the amount of unabsorbed fat, leading to gastrointestinal side effects like oily stools or urgent bowel movements. Keeping each meal to approximately 15g of fat minimises these effects while maintaining the weight loss benefits.
Supporting Your Weight Loss Journey
Orlistat's fat-blocking mechanism works best as part of a comprehensive approach including a reduced-calorie, lower-fat diet and regular physical activity. The blocked fat represents real calorie reduction - approximately 30% fewer calories absorbed from dietary fat sources. This calorie deficit, combined with lifestyle changes, supports sustainable weight management.
Order Your Orlistat Treatment Today
Now you understand how orlistat's proven mechanism blocks approximately one third of dietary fat absorption, you can choose the right option for your weight management goals. Whether you select Alli 60mg, generic orlistat 120mg, or branded Xenical, all work through the same effective fat-blocking action. Complete our online consultation for prescription products or order Alli directly. Use code EDM10 for 10% off every order with next day delivery from our GPhC-registered pharmacy.
