As-Suyuti in "Medicine of the Prophet" said, "The onion is hot and damp. Its virtue is that for the eater it remedies changes of water. It makes food tempting, gives coction to semen, and cuts phlegm. To smell an onion prevents vomiting after taking medicine. To eat meat with onions removes their unpleasant smell. From al-M‘awiyya comes this: The Prophet offered food with onions to some delegates and said: Eat of this seasoning and say: He who eats not of seasoning or of what diffuses the odour of the earth, such a man will suffer harm from its waters and will suffer injury.”