Vitamins are also known as vitamins. In layman's terms, they are life-sustaining substances. They are a type of organic substances necessary to maintain human life and are also important active substances to maintain human health. The content of vitamins in the body is small but indispensable. Although the chemical structures and properties of various vitamins are different, they have the following in common:

�?/strong>Vitamins are all present in food in the form of provitamins;

�?/strong>Vitamin is not a component of body tissues and cells, and it does not produce energy. Its role is mainly to participate in the regulation of body metabolism;

�?/strong>Most vitamins cannot be synthesized by the body or in insufficient synthesis, which cannot meet the needs of the body and must be obtained from food frequently;

�?/strong>The human body has a very small demand for vitamins, and the daily demand is often calculated in milligrams or micrograms, but once lacking, it will cause corresponding vitamin deficiencies and cause damage to human health.