When you have a fever, you should eat a light and easily digestible breakfast, and you also need to have a balanced nutrition. The diet should be light and less oily, which can meet the nutritional needs and also increase your appetite. You can eat rice porridge or millet porridge or red bean porridge, and you can eat appetizing small dishes to help increase your appetite. You can also drink fresh fruit juices at the same time. You can drink acidic fruit juices, such as hawthorn juice, kiwi juice, red date juice, fresh orange juice and watermelon juice. These juices are rich in vitamin C, which can help promote the healing of colds and fevers, and can also promote the secretion of gastric juices and increase appetite. It is also possible to replace the juice with fruits, you can eat tomatoes, apples, grapes and strawberries.