Name	Functions	deficiency symptoms	Dietary sources
Vitamin A (Retinol)	Vision, bone growth, growth, cell differentiation, helps in immune system and fighting infections	Poor vision, night blindness, retarded growth, vulnerable to urinary and respiratory tract infections	eggs, milk, liver, butter, cheese, carrots, tomatoes, spinach, kale, oatmeal, cereals, Apricot, broccoli, peas,
Vitamin B1 (Thiamin)	Cordination between nerves and muscles, good function of heart, normal appetite ,brain function, learning, growth	Nerve dsorders, loss of appetite, fatigue, poor digestion, retarded growth, mental depression, insomnia	Wholemeal bread, cereals, meat, tuna, milk, asparagus, lettuce, mushrooms, spinach, sunflower seeds, green peas, tomatoes, eggplant and Brussels sprouts.
Vitamin B2 (Riboflavin)	Metabolism of carbohydrate into energy, fats, lipids,maintainance of normal tissue and mucous membrane	Sores at corners of mouth, lips, tongue, scaling of skin around fascial parts, skin and membrane disorders, sensitivity to light, anemia	meat, eggs, milk, green vegetables , nuts, cheese, fish, legumes, whole grains, and yogurt.
Vitamin B3 (Niacin)	Lowers cholesterol, helps good circulation,maintain glucose levels, helps in secretion of bile and stomach fluids, function of nervous system,	Dipression, fatigue, indigestion, insomnia, loss of appetite, dermatitis, muscle weakness, and cause pellagra . Pellagra is group of symptos due to niacin deficiency. dermatitis, diarrhea, and dementia are the symptoms.	Meat, fish, liver, cereals, legumes, asparagus,milk, green leafy vegetables chicken breast, asparagus
Vitamin B5 (Pantothenic acid)	Involves in metabolism of carbohydrate, protein, fats. Helps in secretion of hormones and cholesterol metabolism. Maintain healhty skin and helps in fighting allergy.	Fatigue, nausea, depression, numbness, cramps, cardiac instability, tingling, frequent infections	Mushrooms, cauliflower, broccoli, turnip greens, sunflower seeds, eggs, fresh vegetables, legumes, liver, whole wheat
Vitamin B6 (Pyridoxine)	Maintaine blood glucose, helps in formatin of heamoglobin, involves in immune response, balancing of hormonal changes, cell growth, nucleic acid synthesis, metablosim of protein, carbohydrate and fats	anemia, nervousness, weakness, irritability, allergy, osteoporosis, joint pains, skin disorders, convulsions, seizures	Spinach, eggs, carrots, wheat germs, walnuts, bell peppers, peas, chicken, fish, liver
Vitamin (H) B7 (Biotin)	Involves in the metabolism of fats, proteins and carbohydrates. Helps in hair splitting and alopecia and strengthens hair and nails. Helps reduce blood sugar and improve hair health.	Dermatitis, hairloss, nausea, depression,anemia, lethargy, numbnes, tingling of the extremities,increased susceptibility toinfections.	Liver, eggs, milk, broccoli,oats, soyabean, unpolished rice, nuts, wheat
Vitamin B9 (Folic acid)	Cell growth, cell division, DNA synthesis, helps in hemoglobin production and red blood cell formation, synthesis of amino acids, energy production, anemia associated with folic acid deficiency, development of fetus nervous system	megaloblastic anemia, spina bifida in babies, fatigue, acne, sore tongue, cracking at the corners of mouth	Fresh beans, vegetables, spinach, broccoli, citrus fruits, wheat bran, whole grains,liver.
Vitamin C (Ascorbic acid)	Healthy gums, protect from infections, act as antioxidant, develop and strengthen blood vessels and cartilage. Protect from cataract, heart dieases, bleeding, reduce cholesterolenhance immune system,	Scurvy,bruise and bleed, sore gums, slow healing, enhance infections	citrus fruits, broccoli, bell pepper, guava, strawberries, oranges, lemon juice, papaya, cauliflower, tomatoes, kale and Brussels sprouts.
Vitamin D (Calciferol)	Develop and strengthens bone, tooth, regulates levels of calcium and phosphorus in the blood	Rickets, Poor bone and tooth development, dental decay	Fish liver oil, cod liver oil, cereals, milk, yogurt, margarines, sunlight,
Vitamin E (Tocopherol)	Prevents blood clots, essential for red blood cells, strengthen blood vessels, antioxidant, skin treatment to lok younger, involves healing of scar tissue, skin ulcers, eczema,enhance fertility	Skin abnormaities including drying, infertility, rupture of red blood cells and blood vessels dry skin	Whole grains, nuts, oats, oils,green vegetables, spinach, sunflower seeds, egg yolk
Vitamin K (Phyllochinone)	Important for blood clotting, prevents calcification of soft tissues and arteries, imporves bone strength, protects form liver diease	Faulty blood clotting and and bleeding	lMeat, poultry, leafy vegetables, cheese,fish, liver, asparagus, beans, whole grains, cereals
Vitamin B12 (cynocobalamine)	Prevents megaloblastic anemia, protect nerve tissue and improves metabolism of protein, carbohydrate, and fat	Megaloblastic anemia, sore tongue,numbness in feet palpitaions, depression, nervousness, momory problemsh	Milk, yogurt, liver, fish