The Science Behind Orlistat - Why It Works for You
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 body. 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. The mechanism is proven, predictable, and works locally in your gut rather than affecting your brain or nervous system.
Why This Mechanism Drives Weight Loss
By blocking approximately one third of dietary fat absorption, orlistat can significantly reduce your calorie intake from meals. Fat contains 9 calories per gram - more than double that of protein or carbohydrates. When orlistat prevents this fat absorption, you're consuming fewer calories while eating similar portions. This creates the calorie deficit needed for weight loss when combined with a reduced-calorie, lower-fat diet and increased physical activity.
Orlistat 120mg vs Xenical vs Alli - Same Proven Mechanism
Generic orlistat 120mg (from £29.69 for 4 weeks with EDM10) and branded Xenical 120mg (from £38.69 for 4 weeks with EDM10) contain identical active ingredients at the same dose. Both block approximately one third of dietary fat using the same proven mechanism. Alli 60mg offers half the dose for those preferring lower-strength treatment (from £26.09 for 4 weeks with EDM10). All three work through lipase inhibition, but the 120mg prescription strength provides maximum fat-blocking effect.
Evidence You Can See and Feel
Unlike weight loss treatments that work invisibly, orlistat's mechanism produces noticeable effects. The unabsorbed fat that passes through your system serves as proof the medicine is working. While gastrointestinal side effects like oily stools may seem inconvenient, they're actually evidence that approximately one third of your dietary fat isn't being absorbed. Keeping meals low in fat (around 15g fat per meal) minimises these effects while maintaining the treatment's fat-blocking benefits.
Order Your Treatment Today
Now you understand exactly how orlistat works to block approximately one third of dietary fat absorption, you can make an informed treatment decision. Complete our online clinical assessment to access prescription orlistat 120mg from £15.20 (2 weeks), Xenical from £19.35, or Alli 60mg from £26.09. All orders include 10% discount with code EDM10, plus next day delivery from our GPhC-registered Leicester pharmacy. Your UK-licensed prescriber will review your application and, if appropriate, issue your prescription today.
