Tag: Niacin tolerance

Affecting up to 90% of people taking high-dose nicotinic acid, niacin flush is a common yet uncomfortable side effect characterized by skin redness and warmth. The good news is that most individuals can and do build a tolerance to this reaction over time, so the intensity and frequency of the flush does niacin flush get better.

According to a randomized, placebo-controlled study involving healthy volunteers, a single 500mg dose of immediate-release niacin on an empty stomach can cause flushing with an average duration of about 75 minutes. This temporary side effect, often accompanied by a prickly or burning sensation, is a common reaction for those taking higher doses of the vitamin.

Over 90% of individuals taking high doses of immediate-release niacin supplements will experience a niacin flush. This temporary but intense reaction can be startling if you don't know what to expect, leaving many to wonder, what does a niacin flush feel like? The sensation is a direct result of blood vessel dilation and typically presents as a hot, prickly, and itchy feeling on the skin.

Approximately 70-100% of individuals taking high doses of immediate-release niacin supplements will experience the common side effect known as flushing. Understanding **how long does niacin flushing last** is key to managing this temporary, though uncomfortable, reaction to the nutrient.

Affecting a significant number of people who take high doses of niacin (vitamin B3), a niacin flush is a harmless, temporary side effect involving skin redness and warmth. For those new to this supplement, the most pressing question is often **how long does a vitamin B flush last?**