Vitamin

Vitamins are natural substances that the body needs to stay healthy and work properly. There are 13 vitamins: The vitamins A, D, E, K, which are fat-soluble, and Vitamin C and the family of B vitamins (thiamine, riboflavin, niacin, pantothenic acid, biotin, B₆, B₁₂, and folate), which are water-soluble. When you have a varied and balanced diet, most people should get all vitamins they need from their food, but some may need to take supplements.

Sources:

1. Harvard T.H. Chan School of Public Health. Vitamins and Minerals. https://www.hsph.harvard.edu/nutritionsource/vitamins/ (accessed 7. August 2020)
2. NIH: National Institute on Aging. Vitamins and Minerals. https://www.nia.nih.gov/health/vitamins-and-minerals (accessed 7. August 2020)
3. NHS UK. Vitamins and minerals. https://www.nhs.uk/conditions/vitamins-and-minerals/ (accessed 7. August 2020)