One of the “problems” caused by vitamin B12 deficiency is mouth ulcers. Although harmless on its own, this marker of nutrient deficiency could warn of future problems.
Oral Health Foundation experts said canker sores are “painful sores” that are usually red or yellow. They can appear on the inside of the cheeks, lips, tongue, gums and/or roof of the mouth.
“Most of these sores are the size of the tip of a pencil and can sometimes appear in clusters,” the experts noted.
It is not uncommon for up to six mouth ulcers to appear in the mouth at one time, and while many ulcers can indicate a bite on the inside of the cheek, for example, they can also be a warning sign of anemia.
The NHS added that vitamin B12 deficiency can also cause tongue pain and redness.
Other signs of deficiency can include extreme tiredness, tingling sensations, muscle weakness, visual disturbances and psychological problems.
Two examples of mental health problems caused by vitamin B12 deficiency are depression and confusion.
A vitamin B12 deficiency can also cause problems with memory, comprehension and judgment.
The NHS instructed, “If you think you may be vitamin B12 deficient, consult a doctor.
“It is important to diagnose and treat vitamin B12 deficiency anemia as soon as possible.”