This handbook provides valuable science-based recommendations for establishing Tolerable Upper Intake Levels (ULs) for supplemental sources of these nutrients—a trusted resource for dietary supplement and dietary ingredient manufacturers, as well as scientific bodies and regulatory policy makers worldwide. Read more in CRN's press release.
Vitamin and Mineral Safety Chapters
Niacin: Nicotinic Acid, Nicotinamide, and Inositol Hexanicotinate
International Comparisons: CRN ULS, US FNB UL, EC SCF UL. UK EVM SUL or GL, and Japan UL