How Orlistat's Fat-Blocking Mechanism Supports Weight Loss
The Science Behind Orlistat's Fat-Blocking Action
Orlistat works by inhibiting lipase enzymes in your digestive system. These enzymes are responsible for breaking 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 means fewer calories from fat are absorbed, which can support weight management when combined with a reduced-calorie, lower-fat diet.
Why This Mechanism Makes Orlistat Effective
Unlike treatments that work in the brain or affect hormones, orlistat's local action in the gut provides a direct, measurable effect on calorie absorption. When you understand that approximately one third of dietary fat is blocked, you can see why maintaining a lower-fat diet maximises the benefit whilst minimising side effects. This proven mechanism has been studied extensively and forms the basis of orlistat's regulatory approval in the UK.
Orlistat vs Injectable Weight Loss Treatments
While injectable treatments like semaglutide work by affecting appetite and blood sugar, orlistat takes a different approach by directly blocking fat absorption. This makes orlistat suitable for people who prefer oral medication and want to avoid injections. The fat-blocking mechanism is immediate - it works with each meal containing fat, providing a direct relationship between what you eat and how the medication works.
Choose Your Orlistat Strength and Supply
At EverydayMeds, we stock both generic orlistat 120mg and branded Xenical 120mg, plus lower-strength Alli 60mg. Generic orlistat 120mg offers the best value, starting from £29.69 for 84 capsules (4-week supply) with code EDM10. Xenical provides the same clinical effect for £38.69 per 4-week supply. Our 12-week supplies offer maximum convenience and value - orlistat 252 capsules for £86.39 or Xenical for £116.09 with your EDM10 discount.
Get Started with UK-Licensed Prescribing
Our online clinical assessment takes just minutes to complete. A UK-licensed prescriber reviews your information and, where clinically appropriate, issues your prescription. We dispense from our GPhC-registered pharmacy in Leicester and offer next-day delivery across the UK. Your prescription is included in the price - no separate GP appointment needed.
