Fasting in the monastic community is considered an ascetic practice, a dhutanga practice. Dhutangas are a specific list of thirteen practices, four of which pertain to food: eating once a day, eating at one sitting, reducing the amount you eat, on alms-round, eating only the food that you receive at the first seven houses. These practices are adopted by individuals voluntarily, they are not required in the normal course of a Buddhist monastic`s life of practice.