The Science Behind Fat Blocking - Why Orlistat Works
How Orlistat Blocks Fat Absorption
Orlistat works through a precise mechanism that targets lipase enzymes in your digestive system. These enzymes normally break down dietary fat so it can be absorbed into your body. When you take orlistat 120mg capsules, the active ingredient inhibits these lipase enzymes, preventing them from breaking down approximately one third of the fat you consume. This unabsorbed fat cannot enter your bloodstream and passes naturally through your digestive system.
Why This Mechanism Proves Orlistat Works
Unlike treatments that work in the brain, orlistat's fat-blocking action happens locally in your gut where you can see the evidence it's working. This proven mechanism is why orlistat has been prescribed by healthcare professionals for weight management for over two decades. The fact that it blocks approximately one third of dietary fat absorption - not all fat - makes it a measured, clinically-validated approach to reducing calorie intake from dietary fat.
Orlistat vs Xenical vs Alli - Same Proven Mechanism
All three products work through identical fat-blocking mechanisms. Generic orlistat 120mg (from £16.89, £15.20 with EDM10) and branded Xenical 120mg (from £21.50, £19.35 with EDM10) contain the same active ingredient at the same dose, blocking approximately one third of dietary fat absorption. Alli 60mg (from £28.99, £26.09 with EDM10) uses half the dose, providing a lower-strength option with the same proven mechanism.
What Happens When Fat Absorption is Blocked
When orlistat blocks approximately one third of dietary fat absorption, several things occur in your digestive system. The inhibited lipase enzymes cannot break down this portion of fat, so it remains undigested. This unabsorbed fat travels through your intestines and is eliminated naturally in bowel movements. The remaining two thirds of dietary fat is processed normally, ensuring your body still receives essential fatty acids while reducing overall calorie absorption from fat.
Clinical Evidence Supporting the Mechanism
The fat-blocking mechanism of orlistat has been extensively studied in clinical trials involving thousands of patients. Research consistently shows that orlistat blocks approximately one third of dietary fat absorption when taken as prescribed - one 120mg capsule with each main meal containing fat. This mechanism works best alongside a reduced-calorie, lower-fat diet, as high-fat meals can overwhelm the system and increase gastrointestinal side effects.
Order Your Orlistat Supply Today
Now you understand exactly how orlistat blocks fat absorption, you can make an informed decision about your weight management approach. Our GPhC-registered pharmacy in Leicester supplies all three options following online clinical assessment by UK-licensed prescribers. Choose from orlistat 120mg (4-week supply £32.99, £29.69 with EDM10), Xenical 120mg (4-week supply £42.99, £38.69 with EDM10), or Alli 60mg (4-week supply £28.99, £26.09 with EDM10). Complete your consultation today and receive next-day delivery across the UK.
