A recent study published in Nature Medicine by a group of researchers from the Cleveland Clinic in the United States has warned about the dangers of exaggerating with niacin (or vitamin B3) supplements. The study found that excessive intake of niacin may be linked to a higher risk of mortality from cardiovascular diseases, particularly heart attack and stroke.
Niacin, also known as vitamin B3, is a water-soluble vitamin that plays a crucial role in cell respiration, blood circulation, skin protection, and the digestion process. It is naturally found in foods such as white meat, spinach, peanuts, beef liver, brewer’s yeast, and certain types of fish. While niacin deficiencies are rare in the Western world, the vitamin is often taken in supplement form for various health benefits.
Previous studies have shown that niacin can help reduce LDL cholesterol levels and increase HDL cholesterol levels, but the new research suggests that excessive intake of niacin can lead to the formation of metabolites that promote inflammation of blood vessels. This inflammation can contribute to the development of cardiovascular diseases, including heart attacks and strokes.
The study highlights the importance of not exceeding the recommended daily intake of vitamin B3, which varies depending on sex. Overdosing on niacin can cause symptoms such as itching, nausea, headache, diarrhea, flushing, and abdominal pain. It is essential for individuals to consult with a healthcare professional before starting any new supplement regimen and to monitor their intake to prevent any potential harm.
While the study’s findings are not definitive, they serve as a warning about the risks of niacin overdose and the importance of maintaining a balanced diet to meet the body’s nutritional needs. Monitoring vitamin levels through blood tests can help ensure that individuals are getting the right amount of nutrients without putting their health at risk.