What are vitamins?

Vitamins are essential organic compounds that play important physiological functions in the body.

Vitamins include many different types, such as vitamin A, vitamin C, vitamin D, vitamin E, etc. Each vitamin has a specific role in the body. Moreover, vitamins can be obtained through diet. Different foods are rich in different kinds of vitamins. For example, fruits and vegetables are good sources of vitamin C, cod liver oil is rich in vitamin D, nuts and vegetable oils contain vitamin E, etc.

In addition, vitamins are involved in many important physiological processes in the body, such as vitamin A, which is essential for vision health, vitamin D, which helps calcium absorption and bone health, vitamin C, which has antioxidant effects, etc.

Deficiency of certain vitamins can lead to various health problems. For example, vitamin C deficiency can cause scurvy, and vitamin D deficiency can affect calcium metabolism and bone health.