Scientists have long known that restricting calories can fend off physiological signs of aging, with studies in fruit flies, roundworms, rodents and even people showing that chronically slashing intake by about a third can reap myriad health benefits and, in some cases, extend lifespan.
 From a public health perspective, that advice would be impractical for many and dangerous for some.But a new University of Colorado Boulder study published today indicates that when people consume a natural dietary supplement called nicotinomide riboside (NR) daily, it mimics caloric restriction, aka “CR,” kick-starting the same key chemical pathways responsible for its health benefits.
Supplementation also tends to improve blood pressure and arterial health, particularly in those with mild hypertension, the study found.
Source:Â Dietary supplement shows promise for reversing cardiovascular aging | Science Daily
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