There are 13 essential vitamins that are important for the human body:
Essential vitamins for human body

Vitamin A: Necessary for healthy vision, immune function, and skin health.

Vitamin B1 (thiamine): Helps the body convert food into energy.

Vitamin B2 (riboflavin): Important for energy production, skin health, and vision.

Vitamin B3 (niacin): Helps convert food into energy and is important for skin, digestive, and nervous system health.

Vitamin B5 (pantothenic acid): Important for energy production and the synthesis of hormones and cholesterol.

Vitamin B6 (pyridoxine): Helps the body use and store energy from protein and carbohydrates.

Vitamin B7 (biotin): Essential for healthy skin, hair, and nails.

Vitamin B9 (folic acid): Important for cell growth and development, especially during pregnancy.

Vitamin B12 (cobalamin): Necessary for healthy nerve function and red blood cell production.

Vitamin C: An antioxidant that is important for immune function and skin health.

Vitamin D: Necessary for bone health and helps regulate calcium absorption.

Vitamin E: An antioxidant that is important for skin health and immune function.

Vitamin K: Necessary for blood clotting and bone health.

It's important to consume a variety of foods that contain these essential vitamins to maintain good health.