Alli is an over-the-counter weight-loss medication containing orlistat, a lipase inhibitor. It works by blocking the absorption of about 25% of the fat you consume in your diet. This fat then passes through your body undigested.
How Does Orlistat Impact Weight Loss?
Reduced fat absorption translates to fewer calories absorbed, contributing to weight loss. Remember, Alli is most effective when combined with a reduced-calorie diet and increased physical activity. Expect to lose weight gradually; rapid weight loss isn’t typical.
Important Considerations Before Starting Alli
Consult your doctor before using Alli, especially if you have underlying health conditions like kidney or liver disease, diabetes, or thyroid problems. Alli can cause side effects, including oily stools, gas, and urgent bowel movements. These are usually mild and temporary, but inform your doctor if they’re severe or persistent. Dietary changes are crucial for success with Alli; avoid high-fat meals.
Understanding Dosage and Usage
Take one capsule with each main meal containing fat. Don’t exceed the recommended dose. A balanced diet rich in fruits, vegetables, and whole grains is recommended, alongside regular exercise. This ensures that the weight loss is healthy and sustainable.


