Xenical blocks the absorption of dietary fat by inhibiting pancreatic lipases.
- Pancreatic lipases are enzymes your body uses to break down fats in food, preparing them for absorption into your bloodstream. Xenical (orlistat) binds to these lipases, preventing them from doing their job. This means a significant portion of the fat you consume passes through your digestive system undigested and is eliminated in your stool.
About 25% of dietary fat intake is blocked by Xenical. This translates to approximately 130 calories less absorbed per 1200-calorie diet.
Undigested fat leads to a reduction in caloric intake, contributing to weight loss. The amount of fat blocked depends on the amount of fat consumed in the diet. Following a low-fat diet while taking Xenical maximizes its effectiveness.
Remember to combine Xenical with a reduced-calorie diet and increased physical activity for optimal weight management results. Consult your doctor before starting any weight loss medication.
