Your skin needs B-12 and the other B complex vitamins to stay healthy. But if you do not get enough vitamin B-12, you will experience a range of symptoms not necessarily related to skin problems. Furthermore, taking more than the RDA of this vitamin is not known to affect your skin positively or negatively. Nevertheless, you should always talk with your doctor before adding this or any vitamin to your diet.
Function, RDA and Sources
All of the B vitamins, including B-12, aid your body's metabolism by helping it process carbohydrates, fats and protein. This is essential for every area of your body, including your skin. However, the primary function of B-12 lies in the formation of red blood cells and in the proper functioning of your nervous system. You need 2.4 mcg of B-12 a day, and you can get it from animal foods like eggs, meat, dairy products and poultry. If you do not consume animal products, you can get B-12 in the form of a supplement or in cereals, and soy milk fortified with it.
Risks and Symptoms of a Deficiency
Because vitamin B-12 is water-soluble, it is nearly impossible for you to consume too much. However, a mild deficiency of this vitamin is common, particularly among the elderly. Vegans and people with malabsorption conditions, eating disorders and HIV are also at a greater risk for becoming deficient in B-12. Common symptoms of this deficiency include nervousness, shortness of breath, fatigue and numbness or tingling in your extremities, as well as skin problems. If you believe you have a deficiency in this vitamin or are experiencing unexplained skin problems, seek medical attention. Also be aware that if you take more than 800 mcg of folic acid, or B-9, a day, this can mask the symptoms of a B-12 deficiency.
Pernicious Anemia
Very low levels of B-12 can cause a condition known as pernicious anemia. This occurs when your body cannot absorb the B-12 you consume, and the condition is characterized by pale skin, as well as digestive problems, fatigue, difficulty concentrating, a loss of appetite, a swollen tongue, bleeding gums and nerve damage. If your doctor confirms that you have pernicious anemia, you will most likely receive B-12 injections, as well as be instructed to consume a balanced diet. This condition typically responds well to treatment.
Additional Considerations
Just because B-12 is water-soluble does not mean you should consume it in high doses, particularly without first discussing it with your physician. If you are experiencing skin problems, you may require medications or at-home remedies to correct them, and you could be deficient in other vitamins as well. Your doctor can help you determine the best course of action for your particular skin condition, as well as whether or not you need more B-12 in your diet.
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