Cookies are highly acidic foods, while soda crackers are alkaline foods. Weakly alkaline foods: potatoes, cabbage, asparagus, bamboo shoots, peas, pumpkins, lotus roots, pickled radish, tofu, apples, pears, bananas, pineapples, cherries, peaches, beef, milk, and tomatoes. Strongly alkaline foods. Courgette, turnip, radish, carrot, fig, spinach, celery, citrus, grape, taro, kelp, raisins, konjac. Weak and weak acidic foods: ham, butter, eggs, snapper, shrimp, abalone, clams, octopus. Pasta, chocolate candies, fried foods, green onions, fried chicken, strongly acidic foods, beef, pork, tuna, oysters, cheese, rice, wheat, bread, wine, peanuts, sausages, candies, biscuits, and white sugar. The human body's internal environment is basically It is neutral and slightly alkaline. A large amount of acidic substances produced during metabolism are neutralized by buffer substances in the blood, preventing the internal environment of the human body from becoming acidic, but sometimes it can cause disorders. For example, when a person suffers from diarrhea, the excretion is alkaline, and the acid in the body will increase relatively and become acidic; when a large amount of vomiting occurs, the gastric acid is lost too much, and the body can become alkaline again. Moreover, every meal you eat has a certain pH level, which will also affect the body's acid-base balance. The so-called acidity and alkalinity of food refers to whether the inorganic salts in food are acidic or alkaline. Generally, the oxides of metal elements such as sodium, calcium, and magnesium are alkaline in the human body. Foods containing more of these elements are alkaline foods, such as soybeans, tofu, spinach, lettuce, radish, potatoes, lotus roots, onions, etc. Kelp, watermelon, banana, pear, apple, milk, etc. Some foods contain a lot of non-metallic elements, such as phosphorus, sulfur, chlorine, etc. After oxidation in the human body, they generate acid radicals with anions, which are acidic foods. Such as pork, beef, chicken, duck, eggs, carp, oysters, shrimp, as well as flour, rice, peanuts, barley, beer, etc. Therefore, you must pay attention to the reasonable combination of acidic and alkaline foods in home-cooked meals. Otherwise, eating too many acidic foods can cause the blood to become acidic. In order to neutralize these acidic substances, a large amount of alkaline elements such as calcium and magnesium must be consumed in the body, causing a series of symptoms such as calcium deficiency, such as skin diseases and neuropathy. Especially during holidays, if there is more meat, it will be more serious. You should pay attention to pairing it with some alkaline foods such as fresh vegetables and fruits to avoid imbalance of the body's acid-base balance.