1. Fava bean meat sliced soup! Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. 2. Chinese cabbage roasted tofu! Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. 3. Stir-fried meat! Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. 4. Vegetarian fried sweet potato leaves! Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. 5. Scrambled eggs with bean sprouts! Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy. Middle-aged and elderly people often eat these 5 things to improve the body's immunity and increase their energy.