The main components of alkaline food (calcium, sodium, potassium, magnesium) are four essential elements for human movement and brain activity. All foods contain high amounts of metal elements such as calcium, sodium, potassium, magnesium, etc., and the gray matter eventually produced by metabolism in the body is alkaline. Such foods are called alkaline foods.

Usually, you can often eat lemons, oranges, grapefruit, grapes, sugarcane juice, plums, apples, tomatoes and other fruits. Although the taste of these fruits is mostly sour, they will become alkaline during metabolism in the body and keep the blood alkaline. These fruits can also "dissolve" the toxins accumulated in cells and eventually excrete them through the excretory system.