It was originally shown in fruit fly studies that by cutting calories to 30% of what was considered normal maintenance you could achieve significant lifespan increases. This long term 2nd study on rhesus monkey appears to show that it is not the case in the primates
Low Cal Diet Doesn't Increase Monkey Lifespan - AnabolicMinds.com
There was a prior study that showed lifespan increases in monkeys, but that study had a list of flaws about as long as the American Heart Association's diet studies.
It is interesting although not totally surprising that monkeys who were close to normal weight that were put on the -30% diet when they were older did see some blood marker improvements but it did not come with an increase in lifespan.
Low Cal Diet Doesn't Increase Monkey Lifespan - AnabolicMinds.com
There was a prior study that showed lifespan increases in monkeys, but that study had a list of flaws about as long as the American Heart Association's diet studies.
It is interesting although not totally surprising that monkeys who were close to normal weight that were put on the -30% diet when they were older did see some blood marker improvements but it did not come with an increase in lifespan.