The Science Behind Orlistat - Why It Works for Weight Loss
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. Instead, this unabsorbed fat passes naturally through your digestive system and is eliminated from your body. This mechanism reduces the total calories absorbed from your meals, supporting weight loss when combined with a reduced-calorie, lower-fat diet.
Why the Mechanism Makes Orlistat Effective
Unlike appetite suppressants that work in the brain, orlistat acts locally in your gut and is not significantly absorbed into your bloodstream. This targeted action means it directly reduces calorie absorption from dietary fat. Since fat contains 9 calories per gram (more than double that of protein or carbohydrates), blocking fat absorption can significantly reduce your total calorie intake. The unabsorbed fat provides visible proof the medication is working - though keeping meals low in fat (around 15g per meal) minimises side effects while maintaining effectiveness.
Available Orlistat Products and Pricing
Understanding how orlistat works helps you choose the right strength. Orlistat 120mg (generic) offers the most cost-effective option at £32.99 for 84 capsules (4 weeks), or just £29.69 with code EDM10. Xenical 120mg contains identical orlistat at £42.99 for 84 capsules (£38.69 with EDM10). For those preferring lower strength, Alli 60mg provides half the dose at £28.99 for 42 capsules (£26.09 with EDM10). All require clinical assessment through our online consultation service.
Clinical Evidence Supporting the Mechanism
The fat-blocking mechanism has been extensively studied in clinical trials. When combined with a reduced-calorie diet containing approximately 30% calories from fat, orlistat's lipase inhibition consistently demonstrates weight loss support. The medication works best when dietary fat is spread evenly across three main meals, with each meal containing no more than 15g fat. This approach maximises the fat-blocking effect while minimising gastrointestinal side effects that occur when unabsorbed fat passes through your system.
Order Your Treatment Today
Now you understand exactly how orlistat blocks approximately one third of dietary fat absorption, you can make an informed decision about your weight management journey. Complete our online clinical assessment to determine if orlistat 120mg (from £15.20), Xenical 120mg (from £19.35), or Alli 60mg (from £26.09) is suitable for you. All prices include 10% discount with code EDM10. Our UK-licensed prescribers will review your consultation, and if appropriate, your treatment will be dispensed by our GPhC-registered Leicester pharmacy with next day delivery. Start your weight loss journey today - order now.
