What vitamins do
Vitamins are compounds the body needs in small amounts for essential processes such as energy metabolism, immunity, vision, bone health, blood formation, and nerve function.
Two broad categories
- Water-soluble vitamins: B-complex vitamins and vitamin C
- Fat-soluble vitamins: vitamins A, D, E, and K
Why food variety matters
Most people do not need to memorise every vitamin in detail. A more useful goal is to build a routine that includes:
- vegetables and fruits
- pulses and legumes
- dairy, eggs, fish, or planned alternatives depending on diet pattern
- whole grains
- nuts and seeds
When supplements may be useful
Supplements can be helpful in some situations, but they should not automatically replace balanced eating. They may be more relevant when someone has a confirmed deficiency, a restricted eating pattern, reduced absorption, pregnancy-related needs, or medical advice to use them.
Bottom line
Instead of chasing every nutrient separately, most people benefit more from improving overall dietary quality, meal balance, and consistency. When a deficiency is suspected, testing and personalised guidance are more useful than random supplementation.