Why Orlistat's Mechanism Makes It Effective
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 system, reducing the calories your body stores from fatty foods.
Why This Mechanism Works for Weight Management
Unlike appetite suppressants that affect your brain, orlistat works locally in your gut. This targeted action means it directly reduces calorie absorption from dietary fat without systemic effects. When you eat a meal containing 15g of fat, orlistat may prevent around 5g from being absorbed - that's approximately 45 fewer calories per meal. Over time, this calorie reduction can support weight management alongside a reduced-calorie, lower-fat diet.
Orlistat vs Xenical vs Alli - Same Mechanism, Different Strengths
All three products use orlistat as their active ingredient. Orlistat 120mg and Xenical 120mg contain identical doses and work through the same mechanism - Xenical is simply the branded version at £38.69 for 4 weeks compared to generic orlistat at £29.69 with code EDM10. Alli contains 60mg orlistat, providing the same mechanism at half strength. The 120mg prescription-strength products block approximately one third of dietary fat, while Alli 60mg blocks a smaller proportion.
Clinical Evidence Behind the Mechanism
Orlistat's fat-blocking mechanism has been clinically studied for over two decades. The medication prevents approximately 30% of dietary fat absorption when taken three times daily with meals containing fat. This consistent mechanism explains why orlistat is prescribed by healthcare professionals worldwide for weight management in adults with a BMI of 30 or above, or 28 and above with weight-related health conditions.
Why Understanding the Mechanism Helps You Succeed
Knowing how orlistat works helps you use it effectively. Since it blocks fat absorption, keeping your meals lower in fat (around 15g per meal) maximises the benefits while minimising gastrointestinal side effects. The mechanism also explains why you should take orlistat with each main meal containing fat - no fat in the meal means no benefit from the capsule.
Buy Orlistat Online - Proven Mechanism, Proven Results
Now you understand how orlistat's lipase-inhibiting mechanism blocks approximately one third of dietary fat absorption, you can make an informed choice about your weight management. EverydayMeds supplies orlistat 120mg from £15.20, Xenical 120mg from £19.35, and Alli 60mg from £26.09 - all with 10% off using code EDM10. Our UK-licensed prescribers can assess your suitability through a regulated online consultation, with next-day delivery from our GPhC-registered pharmacy in Leicester.
