Provitamin is a substance that turns into a vitamin in the body.

It's important to consume foods that contain a lot of vitamins.

It's my habit to take vitamin pills every day.

Vitamin A is important for maintaining vision.

Vitamin D2 is an important nutrient for bone health.

Vitamin B2 is an important nutrient for maintaining healthy skin and vision.

Vitamin C is effective for preventing colds.

Vitamin D is important for bone health.

Vitamin K plays an important role in blood clotting.

Vitamin E is very important for skin health.