Vitamin KThe problem in blood coagulation arises from the deficiency of Vitamin K.It plays a key role in helping the blood clot, preventing excessive bleeding.Unlike many other vitamins, vitamin K is not typically used as a dietary supplement.Vitamin K is actually a group of compounds.The most important of these compounds appear to be vitamin K1 and vitamin K2. Vitamin K1 is obtained from leafy greens and some other vegetables.Vitamin K2 is a group of compounds largely obtained from meats, cheeses, and eggs, and synthesized by bacteria.Low levels of vitamin K can raise the risk of uncontrolled bleeding.While vitamin K deficiencies are rare in adults, they are very common in newborn infants.A single injection of vitamin K for newborns is standard.Vitamin K is also used to counteract an overdose of the blood thinner Coumadin. Additional InformationName of VitaminSourcesNeedDeficiency Diseases Fat-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, soya beansClotting 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 RBCAnemiaVitamin 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)