This Vitamin May Influence Your Blood Flow and Blood Vessels—Here’s What Science Says

procedures designed to restore adequate blood flow.

When Niacin Supplements May Be Appropriate

Vitamin B3 supplementation can be appropriate when there is a genuine nutritional deficiency or another specific medical indication.

High-dose nicotinic acid may also be prescribed in selected circumstances under medical supervision.

That is very different from recommending high-dose niacin to every person over 50 as a preventive circulation supplement.

Before Taking a High-Dose Supplement

People considering high-dose niacin should discuss it with a healthcare professional, particularly if they have diabetes, liver disease, kidney problems, gout, low blood pressure, cardiovascular disease, or take prescription medications.

A clinician can

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