Leek: leek contains more fiber without Yixiaohua will promote peristalsis, strong purge, which may be excluded from the gastro-intestinal tract excessive nutrients.

• 韭菜: 韭菜中含纤维较多且不易消化，可促进肠蠕动，有较强的通便作用，从而可排除肠道中过多的养分。