Although the taste of these fruits is mostly sour, they will become alkaline during metabolism in the body. These fruits can also "dissolve" the toxins accumulated in cells and eventually excrete them through the excretory system.
Extended data:
Common "acidic foods" are: protein foods, such as livestock, poultry, eggs, fish, shellfish, cheese, peanut butter and peanuts; High-fat foods, such as bacon, walnuts, sesame seeds and salad dressing; High carbohydrate, including corn bran, oats, macaroni, rice bran, rye and wheat; Jelly dessert, pudding, etc. ?
Common "neutral foods" are: butter, margarine, oil, corn, honey and tea.
However, food and drinking water can't change the pH of human body, and we can't simply think that eating acidic or alkaline food will affect the acidity or alkalinity of body fluids. In fact, no matter what water you drink or what food you eat, you can't change the acid-base balance of your body. Acidic food and alkaline food are both components of a balanced diet, and both are essential for rational nutrition.
Reference source:
Baidu Encyclopedia-Alkaline Fruit
People's health network-food is really divided into acid and alkali: fish and eggs are acidic? Fruits and vegetables are alkaline
People's health network-alkaline food is healthier? The theory of acid-base constitution is groundless!