Keto Rapid Diet In your digestive system there are enzymes, known as lipases, which help break down the fat that you eat to ensure that your body can absorb it. Without lipases, fat would pass through the digestive tract and be expelled when you had a bowel movement. Xenical has an ingredient in it that bonds to some of the lipases in your body and retains them from permitting the excessive fat to come to be absorbed into the body.
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