Multivitamins may improve overall health, but experts warn that some vitamin complexes may contribute to the production of acne. More research is needed to back up the link between the two, but you should talk to your dermatologist if you have concerns. Most of these vitamins are available in supermarkets and drugstores, and they can also be found in various foods and beverages.
Vitamin B6
Vitamin B6 can cause acne. Normal dosages of B6 are necessary for proper metabolism and digestion, but many multivitamins contain more than 100 times the recommended dosage. According to the National Institutes of Health's Office of Dietary Supplements, the recommended daily allowance is only 1.3 milligrams, whereas multivitamin products on the market can offer much higher dosages in a daily serving. This overdose of B6 vitamins can lead to vitamin toxicity and the production of acne, among other side effects. It should be noted, however, that not all experts agree on B6's effect on acne; in fact, many say that the vitamin can actually treat acne. Before taking any multivitamin, be sure to speak with a nutritionist for the best option.
Mineral Iodine
Another supplement that can cause an increase in acne is mineral iodine. This mineral is found naturally in seafood and other foods, but supplements and multivitamins can contain very high levels of iodine. When taking these higher iodine dosages, our bodies can develop a toxicity to the mineral. According to Elson Haas, MD, a toxic level of iodine in the blood can cause many health ailments, including skin rash, skin redness and increased acne production. It should be noted, however, that acne will typically only develop in extreme dosages or over the length of prolonged iodine exposure in the blood. Be sure to speak with a dermatologist for more information on your skin and iodine toxicity.
Vitamin B12
According to a study by O. Braun-Falco and H. Lincke, vitamin B12 can also cause acne when taken in high levels. The study concluded that taking high doses of vitamin B12, either in the form of a dietary supplement or as a food additive, can increase the probability of developing a condition called acne medicamentosa. This skin condition can be painful, as it creates large skin blemishes on most parts of the body.
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