Why Understanding Orlistat's Mechanism Matters
How Orlistat Blocks Fat Absorption
Orlistat works through a proven mechanism that targets lipase enzymes in your digestive system. These enzymes normally break down dietary fat so it can be absorbed. When orlistat inhibits approximately one third of these lipases, that proportion of fat cannot be digested or absorbed into your body. Instead, the unabsorbed fat passes naturally through your digestive system. This local action in your gut - rather than effects on your brain - makes orlistat different from appetite suppressants.
Clinical Evidence of How It Works
The mechanism proves orlistat's effectiveness. When you take 120mg three times daily with main meals, you're blocking roughly one third of dietary fat absorption consistently. Generic orlistat 120mg (£32.99 for 4 weeks, £29.69 with EDM10) contains the same active ingredient as branded Xenical 120mg (£42.99 for 4 weeks, £38.69 with EDM10). Both work identically - the difference is price, not mechanism.
What This Means for Your Weight Loss
Understanding orlistat's mechanism helps explain why it must be combined with a reduced-calorie, lower-fat diet. Since it blocks approximately one third of fat absorption, eating high-fat meals increases gastrointestinal side effects while providing more calories than necessary. The mechanism works best when meals contain around 15g fat each - this maximises fat blocking whilst minimising side effects like oily stools or urgent bowel movements.
Prescription Strength vs Lower Dose
Orlistat 120mg requires prescription following clinical assessment because of its potent mechanism. Alli 60mg blocks a smaller proportion of fat absorption. For maximum fat-blocking effect, prescription-strength orlistat 120mg is more effective. Our UK-licensed prescribers assess suitability for adults with BMI 30+ or BMI 28+ with weight-related health conditions during online consultation.
Order Your Prescription Orlistat Today
Now you understand how orlistat blocks approximately one third of dietary fat through lipase inhibition, take action. Choose generic orlistat from £86.39 (12 weeks with EDM10) or branded Xenical from £116.09. Complete our online assessment, get prescriber approval, and receive next-day delivery from our GPhC-registered Leicester pharmacy. Use code EDM10 for 10% off every order.
