Folic acid is a water-soluble vitamin, which means your body gets rid of what it does not use through your urine. However, if you take this vitamin as a supplement, it is possible to overdose, which can cause skin problems and other adverse effects. Talk to your doctor about your folic acid intake, and let him know if you are experiencing any skin dryness or other issues.
Function and RDA of Folic Acid
Not only is folic acid essential for energy production, but it is also required for the health and moisture of your skin, hair and nails. This B vitamin is imperative for the functioning of your brain because it affects your mental and emotional health, and it contributes to the production of your genetic material. It also aids in the production of cells, including the ones in your skin. The National Institutes of Health Office of Dietary Supplements states that adults over the age of 19 need 400 mcg of folic acid a day.
Diet, Supplements and Too Much Folic Acid
It is possible to meet the recommended dietary allowance of folic acid through diet, though a deficiency in this vitamin is fairly common. Food sources of folic acid include fortified cereals, dark leafy greens, lima beans, orange juice and milk. If you are not able to meet your RDA through diet alone, your doctor may recommend a supplement. However, if you begin taking high doses of folic acid, you may experience such side effects as stomach upset, trouble sleeping, seizures and various skin reactions, which can include dry skin. The tolerable upper limit for folic acid in the form of supplements is 1,000 mcg a day, according to the Office of Dietary Supplements.
Other Risks
Aside from skin problems and other reactions, taking high doses of folic acid can trigger and then mask a deficiency of vitamin B-12. You may not develop any symptoms of a B-12 deficiency until it becomes quite severe, which can cause lasting damage to your nervous system. For this reason, your doctor will most likely suggest that you take a B-complex vitamin supplement in addition to your folic acid supplement.
Additional Considerations
Always discuss new supplements with your doctor before you begin taking them. Tell him about any side effects you experience with the supplements or if you notice any changes in the texture or tone of your skin. Dry skin can be caused by a variety of factors that may not necessarily be associated with your folic acid intake. Seek medical attention, rather than attempting to self-diagnose your problem.
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