(1) Stay hydrated: Dehydration of the body may cause under-eye bags, so drinking enough water will help relieve eye bags. Experts recommend that men drink about 13 glasses of water a day, and women drink 9 glasses of water a day. (2) Reduce salty food Eating too much salty food may lead to eye bags under your eyes. Salt helps keep the body hydrated and makes your overall puffiness. It can also cause other health problems, such as heart disease. Take a healthy diet like eating more iron-rich foods. (3) Sleep enough 8 hours