Common symptoms associated with niacin insufficiency include but are not limited to memory loss and mental confusion, fatigue, depression, headache, diarrhea, skin problems.
Niacin is a B vitamin that's made and used by your body to turn food into energy. It helps keep your nervous system, digestive system and skin healthy.
Niacin (vitamin B-3) is often part of a daily multivitamin, but most people get enough niacin from the food they eat. Foods rich in niacin include yeast, milk, meat, tortillas, and cereal grains.
People use prescription niacin (Niacor, Niaspan) to help control their cholesterol. Since Niacin is a vitamin you can also purchase it over-the-counter in the non-flush form.
Since Niacin helps convert food into energy, by taking non-flush niacin in the mornings or even throughout the day, it will help give you a bump in energy and focus.