What is the role of niacin (vitamin B3) in managing cholesterol levels and reducing cardiovascular health risks?

### The Role of Niacin (Vitamin B3) in Cholesterol Management and Cardiovascular Health Niacin, also known as vitamin B3, is essential for converting food into energy and maintaining the health of your nervous system, digestive system, and skin. While most people get enough niacin from their diet, it can also be taken as a supplement in higher doses to manage cholesterol levels and reduce cardiovascular health risks. #### Sources of Niacin Niacin is found in various foods such as red meat, poultry, fish, brown rice, nuts, seeds, legumes, and bananas. Many cereals and breads are also fortified with niacin. #### Benefits of Niacin for Cholesterol Niacin can help improve cholesterol levels by increasing good HDL cholesterol and lowering triglycerides. It also modestly reduces bad LDL cholesterol. Sometimes, niacin is prescribed along with statins for better cholesterol control. #### Risks of High-Dose Niacin While niacin can be beneficial, high doses are needed to see these effects, which can pose risks like liver damage, gastrointestinal problems, and glucose intolerance. Recent studies have also linked excess niacin to heart disease. #### Niacin and Blood Pressure Niacin has been studied for its potential to reduce high blood pressure. A 2021 study found that increased dietary niacin was associated with lower blood pressure levels in people with new-onset hypertension. #### Safety and Side Effects At low doses, niacin is safe for everyone. However, high doses can cause side effects like skin flushing, upset stomach, and more serious issues like liver problems and heart rhythm changes. Always consult your doctor before taking niacin supplements, especially if you have existing health conditions or are pregnant or breastfeeding. #### Conclusion Niacin is essential for overall health and has potential benefits for cholesterol management and cardiovascular health. However, it should be taken cautiously and under medical supervision to avoid adverse effects.