Niacin for brighter moods and better memory. Specific to central nervous system health. Depression can be a symptom of niacin deficiency; also prevents most irritability and anxiety. Can also help to lower cholesterol.
As A Treatment"... Inositol hexaniacinate, a "flush-free" niacin, is also available and has many of the same benefits of niacin, and is becoming increasingly popular..."
As A Treatment"...Niacin can be maufactured within the body, but, if there is a deficiency in B1, B2 and B6, it becomes impossible for niacin to be produced from tryptophan..."