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The Anti-Anti-Oxidants
I've been trying to get more good stuff into my body, not
just on it, so I picked up two anti-oxidant boosters over the past few
months, to add to my water, Dr. Brandt's and Pure Inventions. Dr. Brandt
contains green and white tea extracts, lo han, lotus and grape seed
extracts. What I
like about Brandt's product is that I don't notice it. Dr. Brandt's booster
passes the drinkability test with an A+. Pure uses green tea, lo han and stevia
extract, as well as lotus, kudzu root and Chinese licorice. Kudzu is supposed to suppress one's desire for alcohol? Who knew - a rehab center in a eyedropper. How very showbiz.
But after getting into the water groove, I found an article in the February 28, 2007 Journal of the American Medical Association (pdf here)
that evaluated whether antioxidant supplements had an impact on death
rates - death rates on people - not lab rats. The results were not so
encouraging, as Science Daily helps make a little clearer."Our
systematic review contains a number of findings. Beta carotene,
vitamin A, and vitamin E given singly or combined with other
antioxidant supplements significantly increase mortality. ...Our
findings contradict the findings of observational studies, claiming
that antioxidants improve health."
...
"There are several possible explanations for the negative effect of
antioxidant supplements on mortality. Although oxidative stress has a
hypothesized role in the pathogenesis of many chronic diseases, it may
be the consequence of pathological conditions. By eliminating free
radicals from our organism, we interfere with some essential defensive
mechanisms . Antioxidant supplements are synthetic and not subjected to
the same rigorous toxicity studies as other pharmaceutical agents.
Better understanding of mechanisms and actions of antioxidants in
relation to a potential disease is needed," the researchers conclude."
Using anti-oxidants to fight free radicals in an effort to improve
cell health has always kind of lived on the edge of verifiable science.
Certain aspects of the theory were proven, and then reasonable minds
concluded that if those things were true, then certain other things
must be true, too. Not everyone agreed on those "other things." Now it
looks like we are in for a scientific battle.
And this, of course, is way, way cool, because you know who will benefit? We will. By the time this is done, research scientists will have a better understanding of how our bodies fight disease and cell aging. From that understanding comes cures. Will I keep drinking the boosters? From what I have been able to figure out so far, the extracts I'm drinking weren't part of the study, and not all anti-oxidants fared badly in the study. The scientists found some evidence that selenium may actually prolong.
So, yeah. I'll keep up with the teas and other polyphenols, back off on overdosing on vits A & E, and keep checking for updates.
August 9, 2007 in Food and Drug Administrator | Permalink