Health

Vitamin C Plays Crucial Role in Preventing Gum Disease and Tooth Decay

Published on May 21, 2025

Vitamin C, long known for its role in supporting immune function and general health, is now being firmly linked to oral health, with new findings revealing its critical impact on teeth and gums. While the benefits of this essential nutrient have been studied for decades, recent research underscores its specific importance in preventing gum disease and maintaining overall dental hygiene.

According to a publication in the National Library of Medicine, vitamin C—also called ascorbic acid—is a water-soluble vitamin obtained primarily through the diet. The paper explains that even small amounts are necessary to maintain normal body functions, but recent attention has focused on how this nutrient contributes directly to oral health.

“Vitamin C contributes to collagen synthesis, which is an important protein for providing tooth structure, support, and maintenance,” the publication titled Maintaining Optimal Oral Health notes. “Vitamin C induces calcium deposition, mineralisation, and reduces the risk of developing secondary caries in children.”

Gum health, in particular, appears to benefit from regular vitamin C intake. The vitamin supports the connective tissue around teeth, reducing the likelihood of inflammation and periodontal disease. Sunset Dentistry highlighted this connection in a recent blog, stating: “Taking vitamin C supplements or including vitamin C-rich foods in a balanced diet can help maintain gum health and overall oral hygiene. Regular intake can significantly reduce your risk of gum disease.”

However, experts also caution against excessive or improper consumption of vitamin C. A meta-analysis cited by Surrey Live found that chewing vitamin C tablets could accelerate tooth wear, while acidic sources like orange juice—though healthy—can contribute to enamel erosion if consumed frequently or held in the mouth for long periods.

As such, good oral hygiene remains essential. Dental professionals recommend minimizing the contact time of acidic foods and drinks with teeth and practicing regular brushing and flossing, even while maintaining a vitamin-rich diet.

Sunset Dentistry warns that vitamin C deficiency may lead to serious dental problems, including bleeding gums and loose teeth. In severe cases, low vitamin C levels have been linked to advanced periodontal disease.

“There is scientific evidence linking periodontal disease and vitamin C deficiency,” the National Library of Medicine confirms. “Clinical studies have found that vitamin C depletion can cause gingival bleeding regardless of oral hygiene.”

In addition to citrus fruits, vitamin C is abundant in vegetables like kale, broccoli, spinach, and peppers, as well as in potatoes. Since the body doesn’t store vitamin C, regular intake throughout the day is necessary.

With evidence mounting, experts continue to stress the role of vitamin C not only for overall wellness but as a powerful ally in protecting your smile.

(Image: Getty Images)