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processed meat tied to ovarian cancer risk
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women who eat a lot of processed meats, such as salami and hot dogs, are at a higher risk of ovarian cancer, according to a new australian study.
at the same time, those who eat a lot of fish have a lower risk of the deadly tumors, dr. penny m. webb of gynecological cancers group at queensland institute of medical research in brisbane, australia, and colleagues found.
in their report in the american journal of clinical nutrition, the team also found no link between red meat and the cancer, and just a slightly lower risk among women who consumed large amounts of poultry.
"this suggests that by following common dietary guidelines to reduce the intake of processed meats and increase the intake of poultry and fish, women may also reduce their risk of ovarian cancer," webb and colleagues write.
researchers re-analyzed data from older studies from more than 2,000 women with ovarian cancer and nearly 2,200 without it who were asked about their diets.
they found that women who ate four or more servings per week of processed meat had an 18 percent higher risk of ovarian cancer than those who ate one or fewer servings per week. also, women consuming four or more fish meals per week had 24 percent less risk of ovarian cancer than those who ate less than one fish meal per week.
the absolute risk difference, however, was quite small: "in australia, the risk of developing ovarian cancer before the age of 75 for a woman who eats a lot of processed meat is about 1 percent, compared to about 0.8 percent for those who eat little processed meat," webb told reuters health by email.
most studies of ovarian cancer risks have focused on lifetime exposure to estrogen, according to marji mccullough, of the american cancer society, meaning women who enter puberty early, and go through menopause late, have a higher risk. "very few dietary risk factors have been identified for this highly fatal cancer," mccullough told reuters health by email.
it's unclear why processed meats and fish would have any effect on ovarian cancer. "there are many theories, but no good evidence as yet," webb said. "processed meat contains compounds that could damage cells and thereby cause cancer. conversely, the omega-3 fatty acids found in fatty fish are thought to be good for health in many ways and may possess anti-cancer properties."
mccullough noted that processed meats preserved with nitrites and nitrates can form nitrosamines, known causes of cancer in animals.
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so should women cut out cold cuts? "the association we saw with processed meat is not that strong, so i do not think that women should immediately stop eating all processed meat to reduce their risk of ovarian cancer," webb said.
"however, we know that there are also other health benefits associated with eating white meat and fish so i think that women should aim for a healthy diet that includes less processed meat and higher levels of poultry and fish," she continued. "this will have a number of health benefits and may also lower their risk of ovarian cancer."
mccullough said the findings are consistent with existing american cancer society dietary recommendations: limiting red and processed meats in the diet, and consuming a wide variety of vegetables and fruits.
she noted that there already are good reasons to limit consumption of red meat and processed meat to lower risk for colon cancer and heart disease. "it would be wise to limit processed meats to the occasional event, rather than to consume them as part of one's usual diet," mccullough said.
Source : msnbc.msn.com
Date :
20
April
2010
Category :
Meat Products
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high intake of processed meat may increase the risk of developing type-2 diabetes by 40 per cent, according to a new meta-analysis from norway and the us. data from 12 cohort studies showed that high intakes of all types of meat were associated with a 17 per cent increase in the risk of type-2 diabetes, while similar risk increases were also noted for high intakes of red meat.
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diet and cancer are directly linked, with alcohol and red and processed meats posing particular risks, according to the world cancer research fund's (wcrf) study released this week. a panel of world-renowned scientists looked at 7,000 studies published since the 1960s. entitled food, nutrition, physical activity, and the prevention of cancer, the report includes 10 recommendations on how to prevent cancer.
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a controlled study conducted in the u.s by researchers at the national cancer institute indicates that men and women whose diets are high in red or processed meats are more likely to die from cancer or heart disease. the study included data collected over a 10-year period between 1995 and 2005, and involved half a million males and females between the ages of 50 and 71.according to the results of the study, published this week in the archives of internal medicine, those who ate 4 ounces of red meat per day - or a serving equal to a small steak - had a more than 30 percent increased mortality rate compared to those who ate the smallest amount of red meat.
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a report based on data from 12 pooled cohort studies on heavy meat diets was led by dagfinn aune from the university of oslo and published in the journal diabetologia. the study determined that the high intake of processed meat may increase the risk of developing type 2 diabetes by up to 41 percent. this new meta-analysis was conducted jointly from norway and the us. the general conclusions of the study suggested that: "high intake of total meat increased the risk of diabetes by 17 percent, while red meat and processed meat were associated with 21 and 41 percent increases in diabetes risk.
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high intake of red and processed meats may raise the risk of lung and colorectal cancer by up to 20 per cent, according to a new study from researchers at the usa's national cancer institute. half a million people were surveyed for the new study that also reports raised risks of other cancers, including throat and liver cancer, report the researchers in the open access journal the public library of science - medicine .
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new research supports previous findings that suggest a diet high in red meat could be a risk factor for cancer. high consumption of red and processed meats - but not fat or cholesterol -could raise the risk of pancreatic cancer, claim researchers at the cancer research center of hawaii. tracking 190,000 consumers over seven years through a multiethnic cohort study, the scientists say participants in the highest quintile of processed meat intake had a 68 per cent increased risk of pancreatic cancer compared with those in the lowest quintile.
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large european study supports previous findings that suggests red and processed meat consumption increases the risk of colorectal cancer, fuelling immediate reaction from meat industry that claims the study fails to "prove cause and effect", reports lindsey partos. the eu wide research that spanned ten countries and tracked nearly half a million consumers concluded colorectal risk increases by 49 per cent per 100 grams of daily consumed red meat, to cover pork, beef, veal, and lamb.
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high consumption of red and processed meat may double the risk of breast cancer amongst women of a certain age, suggests a new study from england. in a study of 35,372 women aged 35 to 69, it was found that high meat intake, particularly red meat and processed meats, was associated with a significant increase in the risk of breast cancer amongst pre- and post-menopausal women.
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Coca.Cola
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PEPSI
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Mcdonald
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Nestle
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Mars
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Baskin & Robins
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Nutrika
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Mumika
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Chika
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consuming processed and 