A typical vitamin deficiency disorder, prevalent in corn-eating populations, caused by a deficiency of vitamin B3, also known as niacin or nicotinic acid.
Diet:
Tryptophan-rich diet, with skinless chicken or turkey, fat fish like halibut, salmon and tuna, dry fruits, legumes, nuts, soya flour, seeds, whole grains.
Nutrients:
Yeast extract, brewer's yeast, vitamins B complex.