Resveratrol Study | Berries Used in Juice Plus+® Berry Blend
Posted May 13 2010 7:34pm
Resveratrol Study : Blood Flow May Be Boosted By 250 or 500 mg, Although Cognitive Performance Not Affected
I have to laugh at what you may have read between the lines on this "Study" title. And that is: ok, so taking a megadose resveratrol supplement will get more blood to my brain but it won't make me any smarter?...sooo, what's the point? Yeah, that's what I thought too! That's like a study that shows more water getting to the desert but those who live can't consume it... or something like that :-)
You may know that there is a Juice Plus+® Vineyard Blend, sometimes known as the Berry Blend since 9 different grapes and berries are used to provide the nutrients that are found in those capsules. What you may not know is something that requires a closer look at the particular grapes and berries.
You've heard of resveratrol? I'm sure you have, this is one of those phytochemicals that has gained a lot of attention and may or may not be worth the hype that it has been given. I mean, water and exercise are so far up the list above resveratrol in terms of your health...but I digress. So the research shows that resveratrol is beneficial to your health, and is a compound found in several plants and their skin, notably berries and grapes - raspberries, mulberriers, blueberries, and cranberries. It can also be found in peanuts and some other less-important items in nature. Of course, with grapes being used to make wine, it can be inferred that the French paradox exists (their drinking more wine but living longer than others...) because, in addition to other reasons, the resveratrol that is present in the wine (again, among other reasons). So, let's assume that because it exists in grapes and berries, that is does provide benefit to our health (most phytochemicals, if not all, that are in fruits, vegetables, grapes, and berries...do!)
So, what you may not know is that the nutrients in the Juice Plus+® Berry Blend are derived from Concord grapes, blueberries, cranberries, blackberries, bilberries, raspberries, red currant, black currant, and elderberries. So is it safe to assume that resveratrol exists in the Berry Blend? I don't like to make any assumptions, and neither should you. If so, it is probably minimal. But then again, relative to the megadose amount of synthetic Vitamin C that is sold in most health food stores, an orange is practically worthless as a source of Vitamin C! (I don't believe that for a minute, but I'm saying it to make a point!) The point is that Mother Nature provides a perfect balance of phytonutrients in the whole foods that we find in the orchards and gardens and vineyards.
If you're interested, here are the study details that is referenced in the title
The new randomized, double-blind, placebo-controlled, crossover study, which involved 22 healthy adults, now suggests a role for the compound in brain health.
Dr Kennedy and his co-workers randomly assigned the participants to receive placebo, or one of two doses of trans-resveratrol (250 or 500 milligrams, Biotivia Bioceuticals, Austria). Forty-five minutes after the dose, the blood flow and cognitive performance of the participants was measured over a 36 minute period.
Results showed that resveratrol produced a dose-dependent increase in cerebral blood flow, but no increase in the placebo group. The researchers also noted an increase in levels of deoxyhemoglobin after both doses of resveratrol, which they said was indicative of increased oxygen extraction and utilisation.
No effect on cognitive function was noted, however.
“One key issue regarding resveratrol and other polyphenols is that of the low bioavailability of the parent molecule in humans,” wrote the researchers. “The results here confirm that orally administered resveratrol can modulate brain function in humans. ...
Comments: The bottom line when it comes to this compound or any that have been taken out of a whole food, is that they're never going to be as effective on your body's good health as if you were to consume the whole food in its ripened and raw state. That goes for all the Juice Plus+® blends as well - at least their nutritional supplement is not one or a few megadose vitamins, but nutrients from a variety of whole food fruits, vegetables, or grapes and berries. It must be said that there are some exceptions, but be very cautious as to which ones you decide are the exceptions - no matter whom tells you. Some twenty years into a study with 25,000 plus people, half of whom were smokers and and half of whom were non-smokers, both supplementing with Vitamin E and beta-carotene, had to be stopped because of the negative effects that were being shown to those who were NON-smokers! So you just don't know what today's research may show tomorrow.
The best solution? A healthy diet rich in a variety of whole food fruits, vegetables, grapes, berries - eaten ripe and raw.
The Health & Wellness Institute, PC Official Juice Plus+® Independent Distributor