Signs of deficiency in the mouth are soreness and burning of the tongue and painful, bright red sores that occur on the inner lining of the cheeks and the under surface of the tongue. Foods rich in Vitamin C are oranges, grapefruit, honeydew, strawberry, potato and green vegetables, etc. Since vitamin C is responsible for the formation of collagen, which is a constituent of all connective tissue, it is among one of the most important vitamins for healthy gums and for proper healing after surgeries in the mouth. Vitamin C deficiency can also cause extreme dry mouth, which can lead to decay of the teeth and gum disease. It is interesting to note that in a healthy person vitamin D can be synthesized through the skin from cholesterol, which makes this vitamin more like a hormone which aids assimilation of calcium.
Vitamin D is produced by the interaction of the sun's ultraviolet rays with oils of the skin.
The mouth's first symptoms might be excessive tooth decay, and the patient may complain of general weakness. A vitamin D source is the sun. Vitamin E is found in algae, spirulina, soy, wheat germ, etc. Vitamin K Vitamin K is needed for blood to clot. The food sources rich in vitamin K are chestnut, spinach, cabbage, cauliflower, seaweed, tomatoes, broccoli, Brussels sprouts, turnip greens, spinach and lettuce.