Muscle net tip: lactic acid is produced in muscles after fitness, which is easy to cause soreness and fatigue. Therefore, it is recommended to eat alkaline food. To relieve discomfort. Normal people's body fluids are weakly alkaline, and people will feel muscle and joint pain and mental fatigue after physical exercise. The main reason is that a large number of sugar, fat and protein in the body are decomposed, and acid substances such as lactic acid and phosphoric acid are produced in the process of decomposition. These acidic substances stimulate human tissues and organs, making people feel sore muscles and joints and mental fatigue. At this time, if you simply eat meat, eggs, fish, etc. Rich in acidic substances will make body fluids more acidic, which is not conducive to the lifting of fatigue. Eating more fruits such as vegetables, sweet potatoes, oranges, apples, etc. can eliminate excess acid in the body, reduce the acidity of urine, increase the solubility of uric acid, and reduce the possibility of acid forming stones in the bladder. Therefore, after physical exercise, people should eat more alkaline foods, such as fruits, vegetables and bean products. To help maintain the basic balance of pH in human body, maintain human health and eliminate fatigue caused by exercise as soon as possible. What are the alkaline foods? Strongly alkaline food: tea mugu, tea, Chinese cabbage, persimmon, cucumber, carrot, spinach, cabbage, lettuce, taro, kelp, citrus, fig, watermelon, grapes, raisins, chestnuts, coffee, wine, etc. Weakly alkaline foods: tofu, peas, soybeans, mung beans, bamboo shoots, potatoes, mushrooms, rape, pumpkin, celery, sweet potatoes, lotus roots, onions, eggplant, radishes, milk, apples, pears, bananas, cherries, etc. Supplement: Strongly alkaline foods: grapes, tea, wine, kelp, oranges, persimmons, cucumbers, carrots and walnuts. Moderately alkaline food: dried radish, carrot, soybean, tomato, banana, strawberry, protein, prune, lemon, spinach, etc. And orange.