Even mild deficiencies of vitamin B3 -niacin – are linked to depression, fatigue and other symptoms, while severe deficiencies can cause dementia. A 2004 study in the “Journal of Neurology, Neurosurgery and Psychiatry” reported that vitamin B3 from foods and supplements can help protect against age-related loss of brain functions such as concentration and focus. The recommended daily intake of this nutrient is 14 to 17 milligrams for adults. Rich food sources of this vitamin include beef liver, fish, seeds and peanuts.
Copyright: ContainHealth.com 2016