Evidence supporting the use of: Vitamin C (ascorbic acid)
For the body system: Teeth

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Vitamin C (ascorbic acid) is scientifically validated as important for the health of the teeth and related oral tissues, though it does not directly strengthen the enamel itself. Vitamin C’s primary role is in the synthesis and maintenance of collagen, a vital structural protein in gum tissue (gingiva), dentin, and the periodontal ligament, all of which support the teeth. Deficiency in vitamin C leads to scurvy, a disease historically recognized by symptoms such as bleeding gums, loosened teeth, and poor wound healing in the mouth, highlighting its necessity for oral health. Numerous studies and reviews, including those published by the National Institutes of Health and dental research journals, confirm that inadequate vitamin C intake increases the risk of gingival inflammation, periodontal disease, and ultimately tooth loss due to the breakdown of connective tissue. While vitamin C does not prevent cavities caused by bacteria or sugar, it is essential for maintaining the integrity of the soft tissues around the teeth, aiding in healing, and reducing inflammation. Therefore, the use of vitamin C to support aspects of the teeth body system, particularly the gums and periodontal structures, is supported by strong scientific evidence, though its effect is indirect rather than on the hard tooth enamel itself.

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