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January 25, 2011

Resveratrol Anti Aging: Hype and Fiction?

resveratrol anti agingResveratrol Anti Aging Supplement

Resveratrol is an exciting compound in the news much these days, because of its anti aging properties.  Resveratrol is a fungicide found in high concentrations in the skins of red grapes.  Resveratrol activates the sirtuin genes in animals and humans.  Through this activation resveratrol may increase longevity.

It has been known since the 1930s that calorie restriction prolonged the lifespan in laboratory rats.  Since then calorie restriction has been proven to increase longevity in yeast, round worms, flies, mice, and monkeys.

Resveratrol stimulates similar metabolic mechanisms seen with calorie restriction, and therefore may provide the same benefits on longevity as does calorie restriction.  Resveratrol added to yeast cells caused them to live 70% longer.  It is now known that resveratrol activates sirtuin genes which produce enzymes beneficial to health and longevity.

Living Longer by Eating Less

At this point, calorie restriction is the most proven way to increase longevity.

Calorie restriction induces a stress on an organism.  This stressful environment provokes a survival response altering metabolism and increasing an organism’s defense against the causes of aging.

Calorie restriction leads to DNA stability and chromosomal repair, enhanced energy use and production, increased cell survival, and improved stress response.  Activation of sirtuin genes reduces apoptosis, or programmed cell death, and inhibits atherogenesis, and neoplasia (cancer).

Since calorie restriction improves longevity in all organisms studied, is there a common or universal mechanism?  In 2005, David A. Sinclair published a paper in Mechanisms of Ageing and Development called “Toward a Unified Theory of Calorie Restriction and Longevity Regulation”.

Xenohormesis Hypothesis

Do plants under stress produce similar survival responses?  And if so, do they produce chemicals or molecules that could be passed on to animals and humans?  This is known as the Xenohormesis Hypothesis.  The answer is yes and yes.  More specifically, the Xenohormesis Hypothesis states “organisms have evolved to pick up on stress-signaling molecules from other species in their environment because it allows them to shift into a survival mode in advance of an environmental decline (Sinclair’s paper).”

What we now know is that plants when under stress produce small molecules that activate the sirtuin genes in animals and humans.  These molecules are called STACs which stands for sirtuin activating compounds.  There are 18 of these compounds and the most powerful in resveratrol.  By activating the sirtuin genes, resveratrol and other STACs can provide the benefit of calorie restriction without the need to restrict calories.

Other common STACs include quercetin, fisetin, and butein.  Resveratrol is also found in the Chinese Knot Weed root, peanuts, and dark chocolate.  Pinot Noir is the wine with the highest resveratrol concentration.

Resveratrol in the News

Numerous studies on resveratrol have been completed or currently being conducted.   One study in mice showed that mice given resveratrol in addition to a high calorie diet realized healthy changes to their physiology than mice on a high calorie diet without resveratrol.  These control mice experienced changes similar to diabetes, heart disease, and premature death.

In animals, resveratrol has been shown to improve glucose metabolism by lowering blood sugar and increasing insulin sensitivity, improve motor function, and also increases the number and function of mitochondria, which produce energy for the cell.

In humans, resveratrol was shown to improve reaction time, verbal memory, and VO2 max in sedentary people.  Resveratrol is currently being studied in humans in the treatment skin cancer, breast cancer, colorectal cancer, lung cancer, and prostate cancer.

How Much Resveratrol to Take?

The ideal amount of resveratrol to take at this time is unknown. Some think as little as 50 mg per day might be sufficient, but researchers in the field are reported to take 500 mg to 1,000 mg a day.  Up to 5,000 mg per day has been given without any significant side effects being reported in any scientific studies.


See related articles.

“Supplements Recommended by Suzanne Somers”

“Boost Your Health with Probiotics”

“Resveratrol and Cancer”

“Resveratrol and Heart Disease”


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Dr. Joe Jacko

Dr. Joe is board certified in internal medicine and sports medicine with additional training in hormone replacement therapy and regenerative medicine. He has trained or practiced at leading institutions including the Hughston Clinic, Cooper Clinic, Steadman-Hawkins Clinic of the Carolinas, and Cenegenics. He currently practices in Columbus, Ohio at Grandview Primary Care. Read more about Dr. Joe Jacko

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