Calorie Restriction Diets - There Is A Difference Between Animals & People
Calorie restriction diets, while all the rage, may target life extension differently between humans and rodents, or so says a study according to scientists at Washington University and School of Medicine in St. Louis.
Studies performed previously, have demonstrated that lab rodents given 30 – 50% less food can live up to 50% longer. Some people follow calorie restriction diets (diet that is low in calories and high in nutrition) to lengthen their lives because of these facts. But new research indicates unless people on calorie restriction diets also monitor their protein intake, it may not lengthen their lives.
- “We looked at IGF-1 in humans doing calorie restriction,” says first author Luigi Fontana, M.D., Ph.D., assistant professor of medicine at Washington University and an investigator at the Istituto Superiore di Sanità in Rome, Italy. “For years, we have been following a cohort of people from the CR Society who have been on long-term calorie restriction. We found no difference in IGF-1 levels between people on calorie restriction and those who are not… But we know there are two major influences on IGF-1 levels: calorie intake and protein intake. So we decided to look at the influence of protein.”
- Previous research from Fontana’s group had found that a diet lower in protein might protect against some cancers. These more recent findings suggest lowering protein also might be important to longevity. Fontana admits his evidence is preliminary, but the findings suggest that when people adjust their diets to improve health and lengthen life, they should control not only calories and fat but also keep an eye on protein. http://www.sciencedaily.com/releases/2008/09/080924151018.htm
True calorie restriction diets need adequate but small amounts of protein for those longevity benefits to happen, whether rodent or human. Not large and not none at all. Reducing fat, calories and large portions of protein as a general practice seem smart. Reduce your cravings and you can live with calorie restriction diets without even thinking twice.
-admin Thinexa Natural Appetite Suppressant
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