Food source: whole grains, enriched bread and cereal, nuts, and also milk, eggs

Functions: Improves circulation and reduces the cholesterol level in the blood; maintains the nervous system; helps metabolize protein, sugar & fat; reduces high blood pressure; increases energy through proper utilization of food; prevents pellagra; helps maintain a healthy skin, tongue & digestive system.

Deficiency: May result in pellagra, gastrointestinal disturbance, nervousness, headaches, fatigue, mental depression, vague aches & pains, irritability, loss of appetite, insomnia, skin disorders, muscular weakness, indigestion, bad breath, canker sores.

Toxicity: swollen tongue, rash, low blood pressure, diarrhoea, nausea and vomiting