Vitamin A: Normal vision, health skin, tissue repair and growth, Vitamin B1: Help digestive system work properly, help muscles and Nerves and normal function of heart. Vitamin B2: Healthy immune system & skin, engergy production, Vitamin B3: helps lower the colestrol and clean the artries, Vitamin B6: helps blood cell production, growth and maintain weight, Vitain B12: helps in formation of red boold cells, vitamin E: helps tp protect cell memberances and nerves, Vitamin C: helps wound healing, disease resistance, bone and teeth formation.
I am not an expert on this or any other issues. My views on this and other issues are just my personal views and they could be wrong. 

Very interesting information about
vitamin+health