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Tuesday, 3/3/2026 | 06:01 GMT+7

Six oral signs that may warn of nutrient deficiencies

Unexpected changes in the mouth, such as cracked mouth corners, a swollen tongue, bleeding gums, or recurrent mouth ulcers, can be linked to a lack of essential vitamins and minerals.

Changes in the mouth can reflect overall health. Minor alterations to the lips, gums, or tongue can sometimes be early indicators of nutritional deficiencies. Recognizing these signs early helps in timely detection and supplementation of micronutrients.

Angular cheilitis, characterized by small, painful cracks at the corners of the mouth, can worsen in cold weather or due to frequent lip licking. However, if it recurs often, it likely points to a nutritional imbalance. This condition is often associated with deficiencies in iron, zinc, or B vitamins, such as riboflavin (B2) and B12. Local treatment alone will not be effective without addressing the underlying micronutrient deficiency.

A swollen, smooth, or glossy tongue is another significant indicator. A healthy tongue is covered by thousands of tiny papillae and appears pale pink. When these papillae disappear, the tongue's surface becomes smooth or enlarged. This is typically caused by deficiencies in B vitamins, particularly folate (B9), niacin (B3), and B12. Iron deficiency can also lead to similar symptoms. Individuals may experience tongue pain and discomfort while eating or speaking, making this one of the clearest signs of micronutrient deficiency.

Bleeding gums are commonly caused by brushing too hard or poor oral hygiene. However, persistent bleeding can be linked to vitamin C deficiency. Vitamin C is crucial for maintaining the strength of blood vessel walls and connective tissues. When deficient, gums become weak and prone to bleeding. In severe cases, swelling, inflammation, and infection may occur.

Recurrent mouth ulcers, also known as canker sores, are not just minor irritations; they can reflect an unbalanced diet. Frequent and slow-healing ulcers may be associated with deficiencies in iron, folate, vitamin B12, and B6. These micronutrients play vital roles in cell regeneration and blood formation. A lack of these makes the oral lining more susceptible to damage and ulceration.

A burning or tingling sensation in the tongue or mouth may indicate deficiencies in iron or B vitamins. These micronutrients are essential for proper nerve function and tissue repair. When deficient, unusual sensations can arise, even when unrelated to food intake or oral hygiene practices.

Frequent tooth decay or weak tooth enamel can be linked to a lack of calcium, vitamin D, or phosphorus. Low vitamin C levels also impact gum health, while fluoride deficiency reduces the strength of tooth enamel.

To prevent nutrient deficiencies, individuals should maintain a balanced diet, prioritizing green vegetables, fruits, whole grains, and healthy fats. If necessary, micronutrient supplements can be taken under the guidance of a doctor or nutritionist. Regular health check-ups and blood tests aid in the early detection of deficiencies.

Bao Bao (According to Times of India)

By VnExpress: https://vnexpress.net/6-dau-hieu-o-mieng-co-the-canh-bao-thieu-chat-5045704.html
Tags: warning signs nutrient deficiency mouth

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