Jujubes such as red dates and gray dates are weakly alkaline foods.

The main components of alkaline foods (such as calcium, sodium, potassium, magnesium, etc.) are essential elements for human movement and brain activity. Foods containing a high total amount of metal elements such as calcium, sodium, potassium, and magnesium, and the substances ultimately produced after metabolism in the body are alkaline, are called alkaline foods. For example, vegetables, fruits, dairy, soybeans, fungi, etc. Common ones in life include: grapes, raisins, figs, apples, pears, bananas, pineapples, cherries, peaches, apricots, lemons, mangoes, watermelons, melons, dates, persimmons, citrus, coconuts, sugar cane, carrots, radish, Tomatoes, spinach, celery, taro, mushrooms, kelp, milk, tofu, cassava, soybeans, red beans, mung beans, etc.

Acidic foods refer to foods containing more minerals such as sulfur, phosphorus, and chlorine. After digestion, they eventually form nitrogen, carbon, sulfur, chlorine, salt, etc. The final metabolites in the body are often acidic. Foods that form acid roots and remain in the body. Such as: cattle, sheep, pigs, chickens, ducks, fish, meat, eggs and other animal foods and some beans and cereals. Common foods in daily life include: plums, prunes, young corn, dried lentils, cheese, ham, sausage, eggs, beef, pork, mutton, chicken, horsemeat, clams, octopus, shrimp, loach, abalone, fanfish, and oysters , eel, bonito, mullet, animal offal, bread, cake, wine, sugar, peanuts, walnuts, cheese, biscuits, mayonnaise, peanut butter, soy sauce, fried food, etc.

From a nutritional perspective, acidic foods and alkaline foods actually refer to metabolism in the human body, ultimately forming acidic foods and alkaline foods. Acidic food and alkaline food are a physiological concept, rather than a simple taste or chemical property displayed by food dissolved in water.