Is your body getting enough Vitamin B12? For starters, Vitamin B12 can do a lot of things. It helps the body perform its vital functions and even fight diseases.

Vitamin B12 is a water-soluble vitamin that plays a big role in the function and development of the brain and nerve cells. It’s the largest and, perhaps, the most structurally complex vitamins. Most people, especially in the United States, get enough of this vitamin nutrient, while others don't.

But, did you know that a vegetarian or vegan -- a person who follows a vegan diet -- will likely correct a vitamin B12 deficiency? That is because they don’t eat enough dairy products and eggs to meet their vitamin needs. But if you’re not sure about your body, you can check the doctor about this and get a blood test to find out if you are Vitamin B12 deficient.

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Having a vitamin B12 deficiency can cause a number of borderline symptoms, which could be related to a number of conditions. According to the Thyroid Patient Advocacy (TPA), if a person experiences a wide-range of borderline symptoms, the underlying cause is likely to be the lack of vitamin B12 in the body.

Here are some borderline symptoms that you should watch out for:

Itching of the tongue. People with vitamin B12 deficiency might experience an irresistible urge to scratch their tongue. There’s still no clear explanation about this sudden itching of the tongue.

White spots on the skin. The white spots can be the result of the hormone melatonin that is not present in the affected area. This hormone controls pigmentation changes and the latest health studies confirmed that vitamin B12 has a direct influence on the hormone. The symptoms often occur on the outside of the forearm, but may also occur in other parts of the body. It is worth noting that, the longer these spots stay in that place, the whiter the spots get.

Sharp stabbing or the pain experienced on the hands. According to reports, these symptoms occur suddenly in a spot directly below the ring finger. If treated properly, a person will experience a tingling pain, which could start from the outside edge of the hand, and the wrist.

However, the deficiency can be corrected with regular medical care like the frequent injections of large doses of the vitamin B12, followed by maintenance doses. In addition to the injection of large doses of vitamin B12, people can also take tablets or multivitamin pills, which already include vitamin B12. In some countries, like the United States, grain-foods such as bread are already fortified with vitamin B12.

Vitamin B12 deficiency can also be topped up by eating certain foods. These include shellfish, fish, liver, red meat, eggs, poultry, milk, cheese, yogurt, fortified nutritional yeast, fortified breakfast cereals, and enriched soy or rice milk.