Foods that ferment quickly in the stomach are excellent natural laxatives.

能在肠胃里迅速发酵的食物是绝佳的天然通便剂。

The artificial sweetener sorbitol has a laxative effect.

人工甜味剂山梨糖醇有通便作用。

Molasses are mildly laxative and something of a general tonic.

糖蜜有些许通便作用，兼具强身功能。