Most people don't think twice about a sore spot in their mouth. A small ulcer or an irritated tongue is usually blamed on stress, a busy week, or something eaten in a hurry.
But health experts say that, in some cases, these seemingly minor issues can be the first clue that the body is missing something important.
According to guidance from NHS, certain vitamin deficiencies can trigger symptoms that appear in unexpected places, including inside the mouth, reports UNILAD.
More than fatigue
When people think about vitamin deficiencies, tiredness is often the first symptom that comes to mind. However, vitamin B12 plays a much bigger role in the body than many realise.
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The nutrient is essential for healthy red blood cells and proper nervous system function. When levels drop too low, a range of symptoms can begin to develop.
Among the less obvious warning signs are recurring mouth ulcers and a sore, inflamed tongue, symptoms that can appear before a deficiency is diagnosed.
Why it happens
Medical experts explain that the tissues inside the mouth constantly renew themselves. A shortage of vitamin B12 can interfere with this process, making the lining of the mouth more vulnerable to irritation and slower to heal.
The condition can develop for several reasons. Some people struggle to absorb enough vitamin B12 because of underlying medical conditions, while others may not consume sufficient amounts through their diet.
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Foods such as meat, fish, eggs, and dairy products are among the most common natural sources of the vitamin.
Treatment is available
The good news is that vitamin B12 deficiency can often be treated successfully once it has been identified.
Depending on the cause, treatment may involve dietary changes, supplements, or vitamin B12 injections prescribed by a healthcare professional.
Experts say persistent changes in the mouth should not be ignored. While they are often harmless, they can sometimes serve as an early signal that the body is lacking an essential nutrient and may need medical attention.
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