Why are vitamins necessary in diet?

Vitamins are essential nutrients that the body needs to function properly. They help the body to:

- Build and repair tissues

- Convert food into energy

- Regulate the immune system

- Protect against infection

- Maintain healthy skin and hair

- Promote good vision

- Support brain function

Vitamins are classified into two groups: water-soluble and fat-soluble. Water-soluble vitamins are easily absorbed and transported throughout the body. They include vitamin C, vitamin B1, vitamin B2, vitamin B3, vitamin B6, vitamin B9, and vitamin B12. Fat-soluble vitamins are absorbed along with fat from the diet. They include vitamin A, vitamin D, vitamin E, and vitamin K.

The body cannot produce all of the vitamins it needs, so it is important to get them from food. A healthy diet that includes a variety of fruits, vegetables, and whole grains can provide all of the vitamins the body needs.

Some people may need to take vitamin supplements if they have certain health conditions or if they do not eat a healthy diet. Talk to your doctor about whether you need to take a vitamin supplement.