Can blueberries treat mouth ulcers?

Aug 15, 2025 Source: Cainiu Health

Dr. Yu Yongchao

Introduction

Under normal circumstances, blueberries cannot cure oral ulcers, but they may have a certain auxiliary effect on the healing of oral ulcers. Consumption should be moderate and appropriate. During an oral ulcer outbreak, it is recommended to avoid eating overly acidic or hot blueberries, and milder methods of consumption are preferred. In daily life, maintaining good oral hygiene and ensuring adequate vitamin intake are important for preventing oral ulcers.

Generally speaking, blueberries cannot treat canker sores, but they may have a certain auxiliary effect on the healing process. However, one should pay attention to the method and quantity of consumption. Detailed analysis is as follows:

Blueberries are common fruits containing vitamin C, B-complex vitamins, and anthocyanins. Vitamin C and B-complex vitamins provide nutrients for the repair of oral mucosa and promote the regeneration of damaged mucosal tissue. Anthocyanins have certain anti-inflammatory properties and can help alleviate redness and discomfort at the site of canker sores. Consuming an appropriate amount of blueberries at room temperature can support oral healing and generally does not cause adverse reactions. However, excessive consumption may lead to irritation of the ulcerated area by acidic substances in blueberries, worsening pain. Moreover, blueberries do not contain components that directly eliminate the causes of ulcers, so they cannot cure canker sores.

When canker sores occur, it is recommended to avoid consuming overly acidic or hot blueberries, and prioritize gentle methods of consumption. In daily life, preventing canker sores involves maintaining good oral hygiene, ensuring adequate vitamin intake, and avoiding spicy and irritating foods to reduce the frequency of ulcer outbreaks.

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