The Science Behind Orlistat - Why It Works
How Orlistat Blocks Fat Absorption
Orlistat works through a targeted mechanism that blocks approximately one third of the fat you eat from being absorbed into your body. The active ingredient inhibits lipase enzymes in your digestive system - these are the enzymes responsible for breaking down dietary fat. When lipases are blocked, the fat cannot be digested or absorbed and passes naturally through your body. This mechanism is identical whether you choose generic orlistat 120mg (from £15.20 with EDM10), branded Xenical 120mg (from £19.35 with EDM10), or lower-strength Alli 60mg (from £26.09 with EDM10).
Why This Mechanism Drives Results
The fat-blocking action of orlistat provides a measurable reduction in calorie absorption from dietary fat. Since fat contains 9 calories per gram compared to 4 calories per gram from carbohydrates or protein, blocking approximately one third of fat absorption can create a meaningful calorie deficit. This mechanism works best when combined with a reduced-calorie, lower-fat diet - keeping fat intake to around 15g per meal minimises gastrointestinal side effects while maximising the treatment benefit. Order your supply today to start benefiting from this proven mechanism.
Local Action, Systemic Benefits
Unlike appetite suppressants that affect the brain, orlistat acts locally in your gut and is not significantly absorbed into your bloodstream. This targeted action means the medication works directly where dietary fat is processed, providing the fat-blocking effect without systemic stimulant effects. The unabsorbed fat is eliminated naturally from your body, taking approximately one third of the fat calories with it. This mechanism has been extensively studied and forms the basis for orlistat's prescription approval by the MHRA for weight management in suitable adults.
Choosing Your Orlistat Treatment
All orlistat products work through this same proven mechanism. Generic orlistat 120mg offers the most cost-effective option at £32.99 for 4 weeks (£29.69 with EDM10). Xenical 120mg provides the same clinical effect as the original branded version at £42.99 for 4 weeks (£38.69 with EDM10). Alli 60mg offers half the prescription dose for those preferring a lower-strength starting point at £28.99 for 4 weeks (£26.09 with EDM10). Following online clinical assessment by our UK-licensed prescribers, you can access whichever option suits your needs and budget.
Start Your Fat-Blocking Treatment Today
Now you understand exactly how orlistat works to block approximately one third of dietary fat absorption, you can make an informed treatment choice. Our GPhC-registered pharmacy dispenses all three options with next day delivery across the UK. Complete your online clinical assessment to determine suitability, then choose your preferred treatment duration from 2-week starter supplies to 12-week programmes. Use code EDM10 for 10% off every order and start benefiting from orlistat's proven fat-blocking mechanism today.
