Niacin

Niacin, also known as vitamin B3, is a water-soluble vitamin that is essential for various bodily functions. It is important for maintaining healthy skin, nerves, and digestion, as well as converting food into energy. Niacin is available in various foods and can also be taken as a supplement.

Functions of Niacin

• Energy Production: Niacin is crucial for converting carbohydrates, fats, and proteins into energy.
• Cellular Metabolism: It plays a key role in cellular metabolism and DNA repair.
• Cholesterol Management: Niacin can help lower LDL cholesterol and triglycerides while increasing HDL cholesterol.
• Skin Health: It supports the health of the skin and helps alleviate symptoms of skin conditions like acne and rosacea.
• Nervous System Support: Niacin is important for maintaining a healthy nervous system.

Sources of Niacin

Niacin can be obtained from a variety of food sources, including:

• Poultry
• Fish
• Meat
• Legumes
• Whole grains
• Nuts
• Seeds
• Green vegetables

Niacin Deficiency

A deficiency in niacin can lead to a condition known as pellagra, characterized by symptoms such as dermatitis, diarrhea, dementia, and even death if left untreated.

Niacin Supplementation

In some cases, individuals may require niacin supplements to meet their daily requirements. It's important to consult with a healthcare professional before starting any supplementation regimen, as excessive niacin intake can lead to adverse effects.

Study Guide

1. What is the alternative name for niacin? What are its sources?
2. Discuss the functions of niacin in the human body.
3. What are the symptoms of niacin deficiency?
4. Explain the role of niacin in cholesterol management.
5. Discuss the importance of consulting a healthcare professional before starting niacin supplementation.