Anything which cannot be taken as a full meal is not good for health and either should not be taken or taken in a small amount. For example, we never eat a breakfast of onion or garlic or radish. These are foods, which either should not be taken or eaten only in small quantity only as an accompaniment to the main meal. Onion is good for health and has anti–cholesterol and also blood thinning properties, yet it is consumed only in small quantity. In Vedic language, onion has both rajasik and tamasik promoting properties, which make a person more aggressive and dull.

(Disclaimer: The views expressed in this write up are my own).