Vitamins: Vitamins are organic molecules required for metabolic
      reactions. These are classified into two types. They are 
      1. Fat soluble Vitamins- A,D,E,K
      2.Water soluble Vitamins- B,C
        

          Vitamin       Chemical Name         Food Sources              Deficiency Diseases
          A             Retinol               Milk,                     Night Blindness,
                                              Eggs,Fish,Butter,Cheese   Skin dryness
                                              and Liver
          B1            Thiamine              Legumes ,whole grain,     Beri -beri
                                              nuts
          B2            Riboflavin            Egg , milk, cheese,       Inflammation of  
                                              nuts,bread products       tongue, sores in the
                                                                        corners of the
                                                                        mouth 
          B3            Niacin or             Meat,fish, pea nuts,      Skin disease,diarrhea,
                        Nicotinic acid        whole grain               depression,dementia
          B5            Pantothenic           Eggs, liver, dairy        Fatigue,muscle
                        acid                  products                  cramp, Pellagra
          B6            Pyridoxine            Organ meats, cereals,     Anaemia, kidney stones,
                                              corn                      nausea,depression
          B12           Cyanocobalamin        Meat ,fish                Pale skin,
                                                                        constipation,fatigue
          C             Ascorbic acid         Oranges, tomatoes,        Scurvy ,anaemia
                                              sweet and white
                                              potatoes
          D             Calciferol            Direct sunlight,fishoils, Rickets,osteomalacia
                                              eggs
          E             Tocopherol            Vegetable oils, olive     Neurological problems,problems
                                              tomatoes,                 of reproductive
                                              almonds,meat, eggs        system.
          K             Phylloquinone         Soyabeans,green leafy     Failure to clot blood
                        or                    vegetables, dairy
                        Napthoquinone         products, meat