10 Side Effects of Niacin
Niacin Side Effect #5: Flushing
Flushing is quite a common occurrence and not necessarily down to being ill. It is sometimes simply down to being embarrassed or excited for some reason. At other times, though, it could very well mean that all is not right with you in terms of your health. If you have been using niacin supplements, there is a good chance you will experience flushing.
Niacin flushes occur because the compound causes blood vessels to dilate. This then allows an increased flow of blood just beneath the skin which we experience as flushing. It is a common symptom and not something that should cause alarm on its own.
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