Before running in the morning, you can properly eat some foods rich in protein and carbohydrates, such as eggs, lean beef, oatmeal and so on. There is no such thing as what is best to eat, just eat healthy food that suits you. The basic unit of protein is amino acid, amino acid is an important component of the composition of human tissues and organs, the morning running exercise body should focus on supplementing protein, and in order to prevent low blood sugar and other conditions in the running process, but also need to eat some appropriate food containing carbohydrates. 1. Eggs: the basic unit of protein is amino acids, amino acids are important components of human tissues and organs, morning running exercise of the human body should focus on supplemental protein. 100g of eggs contain 13.3g of protein, but also provide 599KJ of energy. 2. Lean beef: 100g of lean beef contains 20.2g of protein, which can provide 449KJ of energy. 3. Oatmeal: 100g of oatmeal contains 14.4g of protein, 65.3g of carbohydrates, which can provide 1595KJ of energy. In addition to the above food, you can also eat some other light and nutritious food. It is recommended to run after half an hour of eating to avoid gastrointestinal discomfort.