Transformation of tryptophan to nicotinic acid investigated with delayed supplementation of tryptophan.
D019587:Dietary Supplements; D009525:Niacin; D009539:Nicotinic Acids; D014364:Tryptophan
D009539:Nicotinic Acids; D009525:Niacin; D014364:Tryptophan
NICOTINIC ACID; TRYPTOPHAN