奥利司他可以在胃及肠道中阻止脂肪的消化与吸收。

Orlistat blocks the digestion and absorption of fat in your stomach and intestines.

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对脂肪的消化和吸收也有一定的促进作用。

Also have certain promoter action to the fat digestion and the absorption.

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消化系统癌症的相关风险可能更多的是饮食问题，即脂肪过多和缺乏纤维素，而不是体重问题。

And the associated risk of cancer in the digestive system may be more of a dietary problem too much fat and a lack of fiber than a weight problem.

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