Concept:Vitamins help in protecting our bodies against diseases.The deficiency of one or more nutrients can cause diseases or disorders in our bodies.Diseases that occur due to a lack of nutrients over a long period are called deficiency diseases.Vitamins deficiency mainly are two types: primary and secondary.Some examples of vitamin deficiency diseases are rickets, beriberi, and pellagra.Explanation:Beriberi is a disease caused by a vitamin B-1 deficiency, also known as thiamine deficiency.There are two types of the disease: wet beriberi and dry beriberi.Wet beriberi affects the heart and circulatory system.Dry beriberi damages the nerves and can lead to decreased muscle strength and eventually, muscle paralysis.Additional InformationName of VitaminSourcesNeedDeficiency DiseasesFat-soluble VitaminsVitamin AMilk, butter, egg, carrots, cod liver oil, tomatoes, pumpkin, green leafy vegetablesNormal growth and to keep eyes and skin healthyNight blindness, Irregular growth of teethVitamin DCheese, butter, milk, green vegetables, fish liver oil, sunlightFormation of strong bones and teethRicketsVitamin Evegetable oils, spinach, lettuce, turnip leaves, butter, milk, whole grains, nuts, seeds, leafy vegetablesProtection of cell membrane, the formation of red blood cells (RBC)Not yet confirmedVitamin KCabbage, cauliflower, spinach, and other green leafy vegetables, cereals, soybeansClotting of bloodExcessive bleeding from woundsWater-soluble VitaminsVitamin B1 (Thiamin)Seafood, milk, meat, peas, cereals, green vegetablesGrowth and development, releasing energy from carbohydratesBeriberiVitamin B2 (Riboflavin)Yeast, egg, meat, peasBody growth and red cell production, releasing energy from carbohydratesSkin diseases, retarded growthVitamin B3 (Niacin)Whole cereals, tomatoes, potatoes, meat, and fishHealthy skin, digestion, and nervous systemPellagra (affects the skin, alimentary canal, and nervous system)Vitamin B12Liver, milk, eggs, fishForming RBCAnaemiaVitamin CIndian gooseberry (amla), lemons, lime, pineapple, oranges, watermelon, green peppers, tomatoes, cabbage, turnip, carrots, green mint, guavaMaintenance of ligaments, tendons, other supportive tissues, and blood vesselsScurvy (gums swell and bleed)