Niacinamide is commonly used in multiple doses to roll back incipient dementia (alzheimers).
Could be a good move to take it regularly.
Correct. Doctor Daniel G. Amen, the preeminent brain-imaging specialist and brain expert at Amen Clinic and UC of Irvine, also warns against deficiencies of Vitamins B6, B9 (folic acid) and B12 for maintaining memory functions.
He also emphasizes that about two thirds of the people are deficient in Vitamin D3 which he calls a "memory vitamin" because it appears to actually remove beta-amyloid (protein "plaques" and "tangles") from the brain and cerebral blood vessels.
Studies have also shown that adults with optimal levels of vitamin D performed better on cognitive and brain-processing speed tests. Dr. Amen recommends 2,000IU daily, but checking the blood level first since individuals synthesize and absorb vitamin D3 differently - same, of course, should be said for most other vitamins, supplements and medications.