'Sneaky' tongue change could be sign of vitamin deficiency that may cause blood disorder

Vitamin B12 deficiency symptoms could include a 'sneaky' change to your tongue.

The human body needs vitamin B12 to make red blood cells, nerves, DNA, and carry out other functions.

The average adult should get 2.4 micrograms a day and like most vitamins, b12 can’t be made by the body but must be sourced in food or supplements.

Some people don’t consume enough vitamin B12, while others can’t absorb enough, no matter how much they take in -as a result, vitamin B12 deficiency is relatively common, especially among older people.

Vitamin B12 deficiency can be slow to develop, causing symptoms to appear gradually and intensify over time - making it a "sneaky" to detect, say experts.

One unusual symptom of a B12 deficiency includes changes to your tongue - which could appear swollen or more inflamed and red.

Tingling or numbness in the legs or feet can also be a symptom (Getty Images)

A deficiency can come on relatively quickly and with varying symptoms, can often be missed or overlooked, according to Harvard Health Publishing.

Other symptoms may include:

• strange sensations, numbness, or tingling in the hands, legs, or feet
• difficulty walking (staggering, balance problems)
• anemia
• difficulty thinking and reasoning (cognitive difficulties), or memory loss
• weakness
• fatigue

A serious deficiency can be corrected two ways - weekly shots or daily high-dose B12 pills. A mild B12 deficiency can be corrected with a standard multivitamin.

If you are a strict vegetarian or vegan, it’s important to eat breads, cereals, or other grains that have been fortified with vitamin B12 or take a daily supplement.

Feeling generally fatigued could be a symptom (Getty Images/iStockphoto)

While an experienced physician may notice the symptoms and be able to detect a vitamin B₁₂ deficiency with a good interview and physical exam, a blood test is needed to confirm the condition.

It’s a good idea to ask your doctor about having your B12 level checked if you are a strict vegetarian or have had weight-loss surgery or have a condition that interferes with the absorption of food.

Early detection and treatment is important. If left untreated, the deficiency can cause severe neurologic problems and blood diseases.