Acidic fruits are fruits whose pH value is less than 7 after the incinerated ash is dissolved in water. Common ones include strawberries, oranges, etc. The so-called acidity and alkalinity of food refers to whether the inorganic salts in food are acidic or alkaline.

Most fruits and vegetables are alkaline foods. The acidity and alkalinity of food are not classified according to taste, but based on the pH value of the ash after food is burned dissolved in water. The sourness of fruits is Due to the fruit acid and citric acid in the fruit.

Acidic fruits can generally be divided into three categories: cold, warm, and sweet. Cold and cool fruits include tangerines, tangerines, water chestnuts, bananas, pears, persimmons, watermelons, etc. People with weak constitution should eat with caution.

Warming fruits include dates, chestnuts, peaches, apricots, longans, lychees, cherries, pomegranates, pineapples, etc. People with hot and dry constitutions should eat them in moderation.

Lychees, cherries, and sweet fruits include plums, plums, coconuts, loquats, hawthorns, etc. These fruits are suitable for people with various physiques

General metal elements sodium and calcium , magnesium, etc., their oxides are alkaline in the human body. Foods containing more of this element are alkaline foods, such as soybeans, tofu, spinach, lettuce, radish, potatoes, lotus root, onions, kelp, watermelon, banana, Pears, apples, 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.

Acidic fruits such as strawberries, oranges, etc. contain acidic substances that are not easily oxidized and decomposed and can easily lead to acidity in the body. Generally, it is not advisable to eat more. Acidic fruits contain tannic acid, which will coagulate with protein when eaten with seafood and precipitate in the intestines, causing vomiting, abdominal pain, diarrhea, and indigestion. Moreover, the sourness in fruits will irritate the gastric mucosa together with gastric acid, and patients with ulcers should not eat acidic foods. , and avoiding acidic fruits can help remove stains.