Today, majority of us are not aware about scientific reason behind Navratri fast. Navratri fasting is observed in that time of the year when there is a change in season. The body also undergoes numerous changes after the long rainy season. Sudden change in climate causes numerous diseases and the immunity is comparatively low. It is believed that the Agni in the stomach (digestion process) is dormant during this time of the year. Therefore digestion process is slow. The 9-day Navratri fast helps in removing all kinds of impurities from the body. It helps in detoxifying. The important organs involved in digestion and cleansing gets much needed rest. So simple and easy to digest food is taken during the period. Non-vegetarian food is avoided as it takes long time to digest. Including seasonal fruits and traditional food items helps in developing better immunity. Stop following all kinds of advises given by advertisements, modern day nutritionists, television channels