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  #1   ^
Old Tue, Feb-22-11, 16:16
Daryl's Avatar
Daryl Daryl is offline
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Plan: ZC
Stats: 260/222/170 Male 5-10
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Location: Texas
Default Polyphenols, Hormesis, and Disease

Quote:
What are Polyphenols?

Polyphenols are a diverse class of molecules containing multiple phenol rings. They are synthesized in large amounts by plants, certain fungi and a few animals, and serve many purposes, including defense against predators/infections, defense against sunlight damage and chemical oxidation, and coloration. The color of many fruits and vegetables, such as blueberries, eggplants, red potatoes and apples comes from polyphenols. Some familiar classes of polyphenols in the diet-health literature are flavonoids, isoflavonoids, anthocyanidins, and lignins.

The Case Against Polyphenols

Mainstream diet-health authorities seem pretty well convinced that dietary polyphenols are an important part of good health, due to their supposed antioxidant properties. In the past, I've been critical of the hypothesis. There are several reasons for it:


http://wholehealthsource.blogspot.c...ase-part-i.html
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  #2   ^
Old Fri, Feb-25-11, 11:41
mathmaniac mathmaniac is offline
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Plan: Wingin' it.
Stats: 257/240.0/130 Female 65 inches
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Interesting, Daryl!
I look forward to Part II.
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  #3   ^
Old Fri, Feb-25-11, 11:46
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Daryl Daryl is offline
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Posts: 7,427
 
Plan: ZC
Stats: 260/222/170 Male 5-10
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Progress: 42%
Location: Texas
Default

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  #4   ^
Old Fri, Feb-25-11, 17:31
mathmaniac mathmaniac is offline
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Posts: 6,639
 
Plan: Wingin' it.
Stats: 257/240.0/130 Female 65 inches
BF:yes!
Progress: 13%
Location: U.S.A.
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http://www.ncbi.nlm.nih.gov/pubmed/20388101

Search argument in NCBI is 'hormesis diet'
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  #5   ^
Old Fri, Feb-25-11, 20:05
mathmaniac mathmaniac is offline
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Posts: 6,639
 
Plan: Wingin' it.
Stats: 257/240.0/130 Female 65 inches
BF:yes!
Progress: 13%
Location: U.S.A.
Smile

From part II:
'I think that overall, the evidence suggests that polyphenol-rich foods are healthy in moderation, and eating them on a regular basis is generally a good idea. Certain other plant chemicals, such as suforaphane found in cruciferous vegetables, and allicin found in garlic, exhibit similar effects and may also act by hormesis (27). Some of the best-studied polyphenol-rich foods are tea (particularly green tea), blueberries, extra-virgin olive oil, red wine, citrus fruits, hibiscus tea, soy, dark chocolate, coffee, turmeric and other herbs and spices, and a number of traditional medicinal herbs. A good rule of thumb is to "eat the rainbow", choosing foods with a variety of colors.'

This sounds like the Mediterranean diet to me.
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  #6   ^
Old Mon, Feb-28-11, 12:14
mathmaniac mathmaniac is offline
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Posts: 6,639
 
Plan: Wingin' it.
Stats: 257/240.0/130 Female 65 inches
BF:yes!
Progress: 13%
Location: U.S.A.
Smile

http://www.ncbi.nlm.nih.gov/sites/e...rch&querykey=15

There is a lot of stuff out there on polyphenols. But I thought this was interesting because it used human volunteers. Also, apple polyphenols have several interesting studies. This guy rejected the importance of polyphenols but now thinks they're interesting?

http://www.ncbi.nlm.nih.gov/pubmed/15853378
I guess this study from 2005 may satisfy his 'second mechanism.'

Last edited by mathmaniac : Mon, Feb-28-11 at 13:29.
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  #7   ^
Old Fri, Mar-04-11, 15:08
mathmaniac mathmaniac is offline
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Posts: 6,639
 
Plan: Wingin' it.
Stats: 257/240.0/130 Female 65 inches
BF:yes!
Progress: 13%
Location: U.S.A.
Smile

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