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  2. View and Find Niacin Side Effects & More. Read, Learn & Discover Today. View Relevant Reviews, Information and Discover Niacin Side Effects Information

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  2. www.mayoclinic.org › drugs-supplements-niacin › artNiacin - Mayo Clinic

    Aug 10, 2023 · Serious side effects are most likely if you take between 2,000 to 6,000 mg of niacin a day. If you think you might have overdosed on niacin, seek medical attention immediately. If you have liver disease, peptic ulcer disease or severe low blood pressure (hypotension), don't take large amounts of niacin.

  3. Jul 17, 2011 · Check with your doctor immediately if any of the following side effects occur while taking niacin: Less common. Darkening of urine; light gray-colored stools; loss of appetite; severe stomach pain; yellow eyes or skin; Other side effects of Niacin. Some side effects of niacin may occur that usually do not need medical attention. These side ...

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  4. Mar 6, 2024 · A recent study showed that high levels of niacin, or vitamin B3, could increase the risk of cardiovascular disease. Here's why excess levels of niacin can be harmful to your health, according to experts.

  5. May 22, 2024 · These doses could pose risks, such as liver damage, gastrointestinal problems, or glucose intolerance. Most recently, researchers found a link between excess niacin and heart disease. So don't...

  6. Nov 16, 2022 · Niacin supplement side effects include flushing, headache, dizziness, and low blood pressure. If you have side effects, you may want to try a different formula or start with a smaller dose. Don't take high doses of niacin.

  7. Feb 19, 2024 · CLEVELAND – For years, vitamin B3, better known as niacin, has been added to many of the foods we eat every day. But, new research from Cleveland Clinic shows getting too much can put you at risk for cardiovascular disease.

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