Let us know first about vitamins. There are different kinds of vitamins like A, B, C and D. Vitamin B are again categorised as B1, B2, B3, B5, B6, B7, B9, B12. These are sometimes called vitamin B complex.
Top source of vitamin A are ( in descending order of their percentage quantity)- Liver of the animal, Paprika, Red Pepper, Chili powder, Sweat potato, Carrot, Dark leafy green(turnip, Mustard, spinach), egg, apricot , papaya, mango etc.
Vitamin B is of various type viz. B1, B2, B3, B5, B6, B7, B9, B12.
Know the individual sources of these vitamins . However in general these vitamins have high influence on our health. Sometime we don't understand the lack of this vitamins and run here and there for doctors. After attaining older age one needs to take vitamin B complex for much reason. There are certain diseases which sometimes impact at lesser magnitude but uneasiness can be observed. I am not a doctor but have general perception. Like high emotional activities, insomnia, anxiety is few diseases which result due to lack of vitamin B. That is why many older people generally take vitamin B complex tablet at regular interval. Individual causes of vitamins are very much essential for us in today's time.
Source of vitamin C in general use eatables are Papaya, Strawberry, Lemon, Pineapple, Orange etc.
Similarly source of vitamins D are cod liver oil, Fish, Soya products, Eggs, Milk etc. It is well said that lack milk results weak bone in children. Milk is very good source of vitamin D.
Main concern is that we should have a balanced food rotation. It is good for health as well as provides diversified taste to us.