Nicotinamide Riboside Has Minor Metabolic Benefits in Obesity: Preclinical Findings
Synopsis
Nicotinamide riboside supplements (NRS) are thought to boost NAD+ levels and mitochondrial function, potentially improving muscle health and energy use. This study tested NRS effects in normal and genetically modified mice with diet-induced obesity. NRS given midway through a high-fat diet slightly improved glucose control but didn't increase NAD+ levels or mitochondrial function in muscle as expected. When given early as prevention, NRS had no benefit. Overall, the results suggest NRS alone may have limited effects on muscle energy metabolism in obesity.
Journal
iScience