1. Meat, fish and eggs.
2. All starches and cereals, especially refined starches (such as white rice, white bread, white noodles, biscuits, brewed refined meal packages, etc.).
3. All sweets, especially jam, jelly, syrup, candy, ice cream, beverage (which is extremely acidic and quickly erodes teeth), chocolate and canned fruit made of white sugar, refined sugar and refined salt.
4. Seasoning and pickles.
5. Onion, garlic and meat.
6. Some beans and nuts, especially peanuts, peas and lentils.
7. All oils and cream, greasy, fried and fried foods.
8. The acidity of cereals can be reduced by proper cooking and treatment. For example, if bread is baked in an oven, the starch in it will turn into fructose. When they are converted into this form, they become easily digestible carbohydrates, just like sugar in fruits. Many whole grains (brown rice, brown rice flour, brown bread, wheat germ, etc.) have significantly lower acidity than processed and refined grains. Extended information
Foods in protein, such as meat and eggs, need to be digested in strong acid gastric juice, while starchy foods, such as bread, need to be played in alkaline environment. If the above foods are eaten together, protein foods and starchy foods cannot be digested at the same time. When starch stays in the stomach and waits for digestion, it is easy to cause the fermentation and corruption of sugar, which leads to the overweight burden of the gastrointestinal tract, so it is easy to cause fullness, acid vomiting or bad smell in the mouth, which also affects the absorption of nutrients.
Acid fruits such as lemons and oranges, or edible vinegar and organic acids enter the body, and are absorbed by the liver after being neutralized by pancreatic juice, bile, intestinal juice and carbonic acid, and are quickly burned into carbon dioxide, which will not cause a burden to the body. After the organic acid is decomposed, the mineral components left behind are potassium, sodium, calcium, magnesium and so on. Therefore, people with poor digestive function should try to avoid excessive intake of acidic foods, especially to reduce the intake of protein, fat and starch foods and increase the proportion of alkaline foods.
Resources: Baidu Encyclopedia-Acid Food.