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Why does niacin cause flushing?

A niacin flush is a side effect of taking large doses of niacin (vitamin B3) supplements. The flush happens when the niacin causes the small blood vessels in your skin to dilate so more blood can rush through. Almost everyone who takes large doses of niacin experiences this flush.

What is the flushing side effect of niacin? The most common side effects of niacin are: stomach upset, flushing, headache, reduced blood pressure upon standing (orthostatic hypotension), vomiting, diarrhea, itching and.

What happens if you overdose on niacin? Overdose of niacin can also cause problems in the digestive system. Bloating, flatulence, nausea, vomiting and diarrhea are the symptoms of gastrointestinal problems due to too much niacin. One of the most severe but rare side effect of niacin overdose is sudden reduction in the blood pressure.

What causes an excess of niacin can cause?

High doses of niacin available via prescription can cause:

  • Severe skin flushing combined with dizziness
  • Rapid heartbeat
  • Itching
  • Nausea and vomiting
  • Abdominal pain
  • Diarrhea
  • Gout
  • Liver damage
  • Diabetes

What are the side effects of niacin? Commonly reported side effects of niacin include: pruritus, nausea, and flushing. Other side effects include: skin rash, and vomiting.

What are the negative effects of niacin?

What are the negative effects of niacin? In Summary. Commonly reported side effects of niacin include: pruritus, nausea, and flushing. Other side effects include: skin rash, and vomiting.

What happens if you overdose on niacin? Overdose of niacin can also cause problems in the digestive system. Bloating, flatulence, nausea, vomiting and diarrhea are the symptoms of gastrointestinal problems due to too much niacin. One of the most severe but rare side effect of niacin overdose is sudden reduction in the blood pressure.

How does niacin affect your body? Niacin has diverse actions affecting cholesterol formation. A primary effect appears to be that it decreases the production of triglycerides in the body, which might be the mechanism that allows this drug to decrease low-density lipoprotein (LDL) or “bad” cholesterol levels.

Can niacin be harmful to control cholesterol? Niacin, or vitamin B3, is too dangerous and should not be used routinely by people looking to control their cholesterol levels or prevent heart disease, doctors say. The warning comes following recent evidence showing the vitamin does not reduce heart attacks or strokes, and instead is linked to an increased risk of bleeding, diabetes and death.