Peer-review is a critical part of the functioning of the scientific community, of quality control, and the self corrective nature of science. But it is no panacea.
Niacin is a form of vitamin B3. It is found in foods such as yeast, meat, fish, milk, eggs, green vegetables, and cereal grains. Niacin is also produced in the body from tryptophan, which is found in protein-containing food. When taken as a supplement, niacin is often found in combination with other B vitamins. Do not confuse niacin with niacinamide, inositol niacinamide, nicotinate (inositol hexaniacinate), or tryptophan.
Vitamin B3 and pellagra. A deficiency of vitamin B3 (also called niacin) leads to a disease called pellagra (pe-LAG-ra). Good sources of niacin include liver, lean meat, whole wheat products, fish, eggs, roasted peanuts, the white meat of poultry, avocados, dates, figs, prunes, kidney, wheat germ, and brewer's yeast.ost dietary deficiency diseases are caused by a lack of protein, vitamins, or minerals. Protein deficiency diseases occur when a person does not eat enough protein; these diseases are prevalent in developing countries where people are too poor to buy protein-rich foods or where such foods are hard to find.