What nutrient deficiencies commonly cause recurrent oral ulcers?
Many people commonly experience recurrent oral ulcers (aphthous stomatitis). While bacterial infection may contribute to oral ulcers in some cases, others result from deficiencies in specific nutrients. So—what nutrients are typically deficient in individuals with frequent oral ulcers?
What Nutrients Are Commonly Deficient in Recurrent Oral Ulcers?
Recurrent oral ulcers are frequently associated with deficiencies in vitamin B₂ (riboflavin), vitamin B₆ (pyridoxine), vitamin B₁₂ (cobalamin), and folate, or with insufficient intake of trace elements such as iron, zinc, and copper. Such deficiencies significantly increase the incidence of oral ulcers. This is because the non-keratinized regions of the oral mucosa have a relatively high demand for these nutrients; when supply is inadequate—whether due to primary viral infection or other causes—ulceration may occur. Although nutritional deficiencies can indeed trigger oral ulcers, not all cases stem from such deficiencies. For instance, emotional factors—including low mood, anxiety, and stress—as well as dietary irritants (e.g., spicy or fried foods) and irregular lifestyle habits may also precipitate oral ulcers. Oral ulceration is a multifactorial condition influenced by genetic, immunological, and environmental factors.

Vitamin supplementation: Maintain a daily habit of taking vitamins. Taking one vitamin C tablet per day can effectively aid in treating oral ulcers. During an active outbreak, crush a vitamin C or vitamin B₂ tablet and apply the powder directly to the ulcerated area—this can accelerate wound healing. Additionally, practice good oral hygiene: brush your teeth twice daily and rinse your mouth before and after meals.

When experiencing frequent oral ulcers, consider supplementing with vitamin C or vitamin B₂. Avoid staying up late, maintain rigorous oral hygiene, and—if symptoms are severe—use topical medications such as Xigua Shuang (Watermelon Frost). Diet is equally important: opt for bland, non-irritating foods, and consume fresh fruit after meals. We hope this article has been helpful to you!