GUT

例句：

1. 1. She ate a lot of junk food and now has a big belly.
   她吃了很多垃圾食品，现在肚子很大。
2. 2. The doctor advised him to eat more fiber-rich foods to improve his gut health.
   医生建议他多吃富含纤维的食物来改善他的肠道健康。
3. 3. He felt better after eating some yogurt and fruits for breakfast.
   早餐吃了一些酸奶和水果后，他感觉好多了。