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Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out

 
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User ID: 144785
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04/07/2010 01:26 AM
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Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
[link to www.npr.org]

Remember the government's advice to eat at least five servings of fruits and vegetables a day to lower your risk of cancer?

Well, times change.

A huge nine-year study of diet and cancer, involving nearly a half-million Europeans in 10 countries, finds only a very weak association between intake of fruits and vegetables and cancer incidence. The study is in the current issue of the Journal of the National Cancer Institute.

Those who get an extra two servings of fruits and veggies a day lower their cancer risk by only four percent.

A decade or so ago, leading experts thought the five-a-day regimen would reduce overall cancer risk by as much as 50 to 70 percent.

In the 1990s scientists were so sure the approach would prevent cancer the World Health Organization and the National Cancer Institute launched the five-a-day bandwagon.

The U.S. government partnered with the food industry to mount a major campaign, called 5-A-Day for Better Health, to prevent cancer. It's still in the cancer-prevention goals of Healthy People 2010, though the message is blurred by wrapping it with smoking cessation.

"It is estimated that as much as 50 percent or more of cancer can be prevented through smoking cessation and improved dietary habits, such as reducing fat consumption and increasing fruit and vegetable consumption," say the government's Healthy People 2010 goals.

What happened? For one thing, earlier researchers were misled by a bias built into the surveys of what people eat.

Dr. Walter Willett, chairman of nutrition at the Harvard School of Public Health, points out that the number of people willing to participate in those surveys has fallen sharply over the past 50 years. "Those who agree to be interviewed...are likely to overrepresent health-conscious persons who smoke less, exercise more, and eat more fruits and vegetables," Willett says in an editorial in JNCI.

Even so, cancer patients' participation rates in these surveys has remained high, probably because they're in the medical system, are recruited because they're being treated or have been treated for cancer, and are perhaps more motivated to participate in studies. With respect to diet, they're likely to be representative of the population at large.

But in the general population, the studies tend to draw more health-conscious people who eat better. So, researchers end up comparing healthy people who happen to eat more fruits and veggies to cancer patients more likely to eat like a truly representative population. That makes it look like eating fruit and veggies is associated with noncancerous healthiness.

The new study avoids this problem by drawing on data from the European Prospective Investigation into Cancer and Nutrition. This study is prospective -- it identifies participants and follows them over time -- so it doesn't have some of the biases of studies that identify subjects after the fact and ask them to recall what they ate.

Willett thinks future research should focus on whether specific fruits and vegetables and their constituents -- lycopene in tomatoes to reduce the risk of prostate cancer, for instance. And more research is needed to follow up on evidence that antioxidants in some food may be especially protective in the diets of children and young adults.

But meanwhile, there's a pretty strong reason for everybody to continue eating lots of fruits and vegetables. It's called cardiovascular disease.

A 2004 study in the JNCI found that eating five servings of fruits and vegetables a day is associated with a 28 percent lower risk of heart disease and stroke, compared to people who eat fewer than 1.5 servings a day.

Incidentally, that study also failed to find an association between eating fruits and vegetables with either cancer incidence or cancer deaths.
Anonymous Coward
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04/07/2010 01:26 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
LIES AND DECEIT


TIRED OF THE DECEPTION.
LA-LA-LA

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04/07/2010 01:26 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
I read that sugar feeds cancer cells...so eating too much fruit (while having cancer) is probably not a good idea.

Last Edited by LA-LA-LA on 04/07/2010 01:29 AM
Anonymous Coward
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04/07/2010 01:28 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
I read that sugar feeds cancer cells...so eating too much fruit is probably not a good idea.
 Quoting: LA-LA-LA


QUIET.
LA-LA-LA

User ID: 914896
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04/07/2010 01:29 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
I read that sugar feeds cancer cells...so eating too much fruit is probably not a good idea.


QUIET.
 Quoting: Anonymous Coward 936503



'crickets'..,..
Free Store  (OP)

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04/07/2010 01:42 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
I read that sugar feeds cancer cells...so eating too much fruit (while having cancer) is probably not a good idea.
 Quoting: LA-LA-LA


Well white sugar defiantly is not good as it eats the enamel off your teeth.

But I found not all sugars are the same just as all oils are not the same. Some ueed in a car and some used to cook with

Your brain runs on high concentrations of sugar

I have tea in a tall mason jar every morning [5 kinds of tea] and two table spoons of local honey, and I get so much energy from it. The honey don't rot the teeth that I have noticed because germs can't live in honey

I highly doubt fruit feeds cancer cells. Cancer is in all of us and a weaken, depressed immune system will lose the battle to keep it in check.
Anonymous Coward
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04/07/2010 01:59 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
Those who get an extra two servings of fruits and veggies a day lower their cancer risk by only four percent.


 Quoting: Free Store


They have to be total vegetarian. There are vegetarian studies if you really want to look into it all.

The meats put off toxins that then cause several types of cancers, colon pancrease prosterate. And balding I heard the other day. The extra animal fats affect the prosterate which then developes the extra fats on the scalp closing off the folicals.

Good try tho. If you want to gorge yourself on meats then help yourself, but it is not healthy.
crazycanuck
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04/07/2010 02:08 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
A good diet is mostly about being sensible and aware of what foods contain. Many fruits and veg are high in antioxidants, which help the body deal with free radicals, thus helping our own natural defences prevent cancer from forming. Blueberries, for example, and mushrooms like shiitakes and enoki, have amazing amounts of good things, sprouted greens, etc,.....I think the recommendation to eat "x servings" a day of fruit/veg must naturally coincide with eating less protein (which most westerners eat way too much of anyhow). It isn't simply eating fruit and veg, it is the quality of those items as well. What you grow yourself is obviously best, after that trusted sources of organics, and so on down the line. The best thing anyone can do for themselves it to educate themselves about what they consume as food...where is it grown? How? By whom? What is used on it? And what vitamins, minerals, etc, do you want and from what sources. It does take some research but there are lots of helpful websites. And if you eat meat, make sure you eat good quality meats. Keep in mind, much of the produce we consume is loaded with pesticides or preservatives, hybridized or GM, irradiated....it's just endless how food is tampered with. And if it makes you sick just thinking about it, it sure as hell will make you sick from eating eat - not to mention the strain on the liver from trying to break down the myriad additives in a "normal" western diet. Time to go back to eating properly like in grandma's time, good and wholesome foods, not loaded with chemicals. Best way to do that is to start growing your own....
rant
crazycanuck
User ID: 807970
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04/07/2010 02:09 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
A good diet is mostly about being sensible and aware of what foods contain. Many fruits and veg are high in antioxidants, which help the body deal with free radicals, thus helping our own natural defences prevent cancer from forming. Blueberries, for example, and mushrooms like shiitakes and enoki, have amazing amounts of good things, sprouted greens, etc,.....I think the recommendation to eat "x servings" a day of fruit/veg must naturally coincide with eating less protein (which most westerners eat way too much of anyhow). It isn't simply eating fruit and veg, it is the quality of those items as well. What you grow yourself is obviously best, after that trusted sources of organics, and so on down the line. The best thing anyone can do for themselves it to educate themselves about what they consume as food...where is it grown? How? By whom? What is used on it? And what vitamins, minerals, etc, do you want and from what sources. It does take some research but there are lots of helpful websites. And if you eat meat, make sure you eat good quality meats. Keep in mind, much of the produce we consume is loaded with pesticides or preservatives, hybridized or GM, irradiated....it's just endless how food is tampered with. And if it makes you sick just thinking about it, it sure as hell will make you sick from eating eat - not to mention the strain on the liver from trying to break down the myriad additives in a "normal" western diet. Time to go back to eating properly like in grandma's time, good and wholesome foods, not loaded with chemicals. Best way to do that is to start growing your own....
rant
 Quoting: crazycanuck 807970

Oops, meant to say "eating it" - sorry!
Free Store  (OP)

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04/07/2010 02:22 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
Those who get an extra two servings of fruits and veggies a day lower their cancer risk by only four percent.




They have to be total vegetarian. There are vegetarian studies if you really want to look into it all.

The meats put off toxins that then cause several types of cancers, colon pancrease prosterate. And balding I heard the other day. The extra animal fats affect the prosterate which then developes the extra fats on the scalp closing off the folicals.

Good try tho. If you want to gorge yourself on meats then help yourself, but it is not healthy.
 Quoting: Anonymous Coward 928228


Well if meat was that bad the Indians would all be dead


For the most part modernization brought the multitudes of veggies together from different parts of the world that we enjoy now before that we ate insects game fowl and fish and berries when in season

The Inuit can't grow veggies in the arctic but had elders

.

Last Edited by four winds on 04/07/2010 02:28 AM
Anonymous Coward
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04/07/2010 02:25 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
For what ever it is worth, this study has too many variables in it. Which fruits and vegetables and what type? Where they organic? What was the soil quality?
Free Store  (OP)

User ID: 144785
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04/07/2010 02:46 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
A good diet is mostly about being sensible and aware of what foods contain. Many fruits and veg are high in antioxidants, which help the body deal with free radicals, thus helping our own natural defences prevent cancer from forming. Blueberries, for example, and mushrooms like shiitakes and enoki, have amazing amounts of good things, sprouted greens, etc,.....I think the recommendation to eat "x servings" a day of fruit/veg must naturally coincide with eating less protein (which most westerners eat way too much of anyhow). It isn't simply eating fruit and veg, it is the quality of those items as well. What you grow yourself is obviously best, after that trusted sources of organics, and so on down the line. The best thing anyone can do for themselves it to educate themselves about what they consume as food...where is it grown? How? By whom? What is used on it? And what vitamins, minerals, etc, do you want and from what sources. It does take some research but there are lots of helpful websites. And if you eat meat, make sure you eat good quality meats. Keep in mind, much of the produce we consume is loaded with pesticides or preservatives, hybridized or GM, irradiated....it's just endless how food is tampered with. And if it makes you sick just thinking about it, it sure as hell will make you sick from eating eat - not to mention the strain on the liver from trying to break down the myriad additives in a "normal" western diet. Time to go back to eating properly like in grandma's time, good and wholesome foods, not loaded with chemicals. Best way to do that is to start growing your own....
rant
 Quoting: crazycanuck 807970


It has taken thousands of years for plants to evolve a resilients to disease naturally. Man can't improve on what nature has done for itself. Now I read that the GMO foods that had gene splicing are failing due to bugs evolving.

Given time the plant in nature would have evolved another defense to insects and as well as to drought heat and cold.

We expect an answer to our needs in too short of time.

Good post
Free Store  (OP)

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04/07/2010 03:09 AM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
Quickly mention that crossbreeding with other similar plants does work for low moist areas or colder climes quicker harvests and even better bug protection
Anonymous Coward
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04/07/2010 05:46 PM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
Of course, they NEVER bother to look at all the chemicals and genetic manipulation that's done to our food. It CAN'T possibly affect us. 90% of the fruits and veggies in the stores these days aren't even ripe enough to eat. I gave up on ever seeing a ripe peach again...planted a peach tree.
Anonymous Coward
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04/07/2010 05:50 PM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
For what ever it is worth, this study has too many variables in it. Which fruits and vegetables and what type? Where they organic? What was the soil quality?
 Quoting: Anonymous Coward 932887


Yeah, and WHAT ELSE did they eat?? a pile of GMO corn products washed down with coke cannot be balanced out with some berries.
Anonymous Coward
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04/07/2010 06:41 PM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
I read that sugar feeds cancer cells...so eating too much fruit is probably not a good idea.


QUIET.
 Quoting: Anonymous Coward 936503

if they tell us its good for us its probly not according to the lumminati hand book
Fhirinne

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04/07/2010 06:44 PM
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Re: Fruits and Veggies Prevent Cancer? Not So Much, It Turns Out
Of course, they NEVER bother to look at all the chemicals and genetic manipulation that's done to our food. It CAN'T possibly affect us. 90% of the fruits and veggies in the stores these days aren't even ripe enough to eat. I gave up on ever seeing a ripe peach again...planted a peach tree.
 Quoting: Anonymous Coward 931557


+1000
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