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The Science Behind How Orlistat Works
Orlistat 120mg capsules work through a targeted mechanism that acts locally in your digestive system. The active ingredient inhibits lipase enzymes responsible for breaking down dietary fat. When these enzymes are blocked, approximately one third of the fat you consume cannot be digested or absorbed into your body. This unabsorbed fat passes naturally through your digestive system, reducing the total calories absorbed from meals.
Why Understanding the Mechanism Matters
Knowing how orlistat works helps you use it effectively. Unlike appetite suppressants that act on the brain, orlistat works purely in your gut. It doesn't affect your appetite, mood, or sleep patterns. The medication only works when you eat fat - if you skip a meal or eat a fat-free meal, you can skip that dose. This targeted action makes orlistat a precise tool for supporting weight management alongside a reduced-calorie, lower-fat diet.
Orlistat vs Xenical - Same Proven Mechanism
Both generic orlistat 120mg and branded Xenical 120mg contain identical active ingredients working through the same fat-blocking mechanism. Generic orlistat 84 capsules cost £32.99 (£29.69 with EDM10), while Xenical costs £42.99 (£38.69 with EDM10) for the same 4-week supply. The clinical effect is identical - the key difference is cost. Both require prescription following clinical assessment by our UK-licensed prescriber.
How the Fat-Blocking Process Works
When you take orlistat with a meal containing fat, the medication immediately begins inhibiting pancreatic and gastric lipases in your digestive tract. These enzymes normally break down triglycerides into absorbable fatty acids. With orlistat present, approximately one third of dietary fat remains undigested and unabsorbed. This unabsorbed fat is eliminated naturally from your body, typically within 24-48 hours of eating.
Maximising Orlistat's Effectiveness
Understanding the mechanism helps optimise results. Keep individual meals to approximately 15g fat to minimise gastrointestinal effects while allowing orlistat to work effectively. Spread your daily fat intake evenly across three main meals, taking one 120mg capsule with each. For 8-week supply (168 capsules) at £63.99 (£57.59 with EDM10), you get comprehensive support for your weight management programme.
Clinical Evidence Supporting the Mechanism
The fat-blocking mechanism has been extensively studied and proven effective for weight management when used alongside a reduced-calorie, lower-fat diet. Clinical trials demonstrate that orlistat's lipase inhibition consistently blocks approximately one third of dietary fat absorption. This predictable mechanism provides reliable support for adults with BMI 30+ or BMI 28+ with weight-related health conditions.
Order Your Orlistat Treatment Today
Now you understand exactly how orlistat's proven mechanism supports weight management, you can confidently order online. Complete our clinical assessment questionnaire for review by a UK-licensed prescriber. Choose from 2-week (42 capsules, £16.89), 4-week (84 capsules, £32.99), 8-week (168 capsules, £63.99), or 12-week (252 capsules, £95.99) supplies. Use code EDM10 for 10% off every order, with next day delivery available across the UK from our GPhC-registered pharmacy.
