All Boards >> Irritable Bowel Syndrome Research Library

HeatherAdministrator

Reged: 12/09/02
Posts: 7681
Loc: Seattle, WA
Eating fish tied to lower risk of colon polyps
      04/23/12 01:25 PM

Eating fish tied to lower risk of colon polyps

By Kerry Grens

NEW YORK | Tue Jan 31, 2012 1:25pm EST

(Reuters Health) - Women who eat about three servings of fish per week have a somewhat lower chance of having polyps found during a routine colonoscopy than women who eat just one serving every two weeks, according to a new study.

The research doesn't prove that seafood protects against polyps, but it "does increase our confidence that something real is going on," said Dr. Edward Giovannucci, a professor at the Harvard School of Public Health in Boston, who was not involved in this study.

A polyp, also called an adenoma, is a mushroom-shaped tag of tissue that grows in the colon and can develop into colorectal cancer.

The idea researchers have been pursuing is that the omega-3 fats in fish might have an anti-inflammatory effect, similar to aspirin, that could prevent the development of polyps.

Giovannucci said that earlier experiments in animals have showed that omega-3 fats can reduce the risk of this cancer, but that studies of humans have had mixed results.

In the latest study, the researchers surveyed more than 5,300 people about their eating habits. All of the participants had come in to the researchers' practices for a colonoscopy.

The team then compared more than 1,400 women without polyps to 456 who had adenomas detected during the procedure.

Among women with adenomas, 23 percent were in the bottom fifth among fish eaters, while 15 percent were in the top fifth. That means people who eat lots of seafood are somehow protected against polyps, because otherwise the percentages should have been the same.

After accounting for differences like age, smoking and aspirin use, women who ate the most fish -- three servings a week -- were 33 percent less likely to have a polyp detected than those who ate the least -- less than a serving a week.

Of course, it's never possible to rule out that other factors could explain the findings. For instance, it's possible that fish lovers have other healthy behaviors that decrease their risk of polyps.

What's more, the study didn't follow the women to see whether either group was more likely to go on to develop cancer. But Dr. Harvey Murff, the lead author of the study and a professor at Vanderbilt University in Nashville, Tennessee, said polyps are a reliable predictor for cancer risk.

"Adenomas are generally believed to be the precursor" to cancer, Murff told Reuters Health. "You would think most things that would reduce adenoma risk would subsequently reduce cancer risk."

A 33 percent lower risk is not enormous, but Giovannucci said "it is important because colorectal cancer is a common cancer."

About 140,000 new cases of colon and rectal cancer are diagnosed each year in the United States, and more than 50,000 people will die from the cancer. The lifetime risk of developing the disease is about 20 percent, according to the American Cancer Society.

The men in Murff's study who ate a lot of fish did not see the same reductions in polyp risk as women, however.

Murff said he doesn't have a good explanation for that, but perhaps men are less sensitive to the omega-3s in fish and need to eat more to get any benefit. It could also be that men might eat more omega-6 fats, counteracting the effects of the omega-3s.

Omega-6 fatty acids are related to the production of a hormone called prostaglandin E2, which is associated with inflammation.

Murff explained that eating omega-3 fatty acids tamps down the body's levels of omega-6 fatty acids. In turn, the body then has reduced levels of prostaglandin E2.

He and his colleagues demonstrated this by showing that the women in the study who ate more fish -- and presumably, more omega-3s -- had lower levels of prostaglandin E2.

"We know people who have higher levels of this (hormone) are more likely to develop colorectal cancer. So in essence, by eating more omega-3 fatty acids, it's almost like taking an anti-inflammatory medication," Murff told Reuters Health.

There is still more work to be done to prove that the omega-3 fatty acids are actually the reason for the reduced colorectal cancer risk.

But, Giovannucci said, "I think this (association) has a pretty strong biologic rationale."

SOURCE: bit.ly/zWMCyQ The American Journal of Clinical Nutrition, January 25, 2012.

http://www.reuters.com/article/2012/01/31/us-fish-polyps-idUSTRE80U1T120120131

--------------------
Heather is the Administrator of the IBS Message Boards. She’s the author of Eating for IBS and The First Year: IBS, and the CEO of Heather's Tummy Care. Join her IBS Newsletter. Meet Heather on Facebook!

Post Extras Print Post   Remind Me!     Notify Moderator

Entire thread
Subject Posted by Posted on
* Diet HeatherAdministrator 07/14/03 01:58 PM
. * Prebiotics vs a Diet Low in Fodmaps in Patients with Functional Gut Disorder HeatherAdministrator   07/18/18 02:58 PM
. * Diet, lifestyle outweigh genetic impact on gut microbiome HeatherAdministrator   03/19/18 02:39 PM
. * Fecal Profiling May Predict Dietary Response in IBS to FODMAPS Diet HeatherAdministrator   03/15/18 11:51 AM
. * Can a Western diet permanently alter the immune system? HeatherAdministrator   01/19/18 01:17 PM
. * High-fat diet leads to same intestinal inflammation as a virus HeatherAdministrator   06/23/17 04:25 PM
. * Gluten-free diet could increase cardiovascular risk in people without celiac disease HeatherAdministrator   05/09/17 01:35 PM
. * Gut microbiome profiles predict response to low FODMAP diet in IBS HeatherAdministrator   11/02/16 02:45 PM
. * Fructose malabsorption, symptom severity, IBS subtype predict response to low FODMAP diet HeatherAdministrator   06/27/16 02:44 PM
. * Fiber-Rich Diet May Boost Lung Function HeatherAdministrator   01/27/16 02:52 PM
. * 'Very limited evidence' to show FODMAPS diet helps IBS HeatherAdministrator   08/07/15 11:56 AM
. * Intestinal Microbiota And Diet in IBS HeatherAdministrator   01/27/15 11:50 AM
. * Low-FODMAP diet NOT superior to traditional diet for reducing IBS symptoms HeatherAdministrator   11/24/14 10:17 AM
. * Rapid increase in IBD caused by dietary trigger? HeatherAdministrator   10/07/14 02:34 PM
. * FODMAPS diet reduces good gut bacteria levels HeatherAdministrator   08/04/14 04:25 PM
. * White bread good for the gut HeatherAdministrator   06/24/14 12:03 PM
. * IBS diet quick tip - HOW to eat for IBS HeatherAdministrator   04/01/14 04:25 PM
. * Dairy and IBS HeatherAdministrator   03/11/14 02:12 PM
. * Soda pop and IBS HeatherAdministrator   03/11/14 02:11 PM
. * Popular blood type diet debunked HeatherAdministrator   01/17/14 11:51 AM
. * Chowing Down On Meat, Dairy Alters Gut Bacteria A Lot HeatherAdministrator   12/11/13 02:20 PM
. * Non-Celiac Wheat Sensitivity in IBS May Be a Food Allergy HeatherAdministrator   11/13/13 12:02 PM
. * Red meat linked to Barrett’s esophagus risk HeatherAdministrator   09/06/13 12:03 PM
. * 16 Foods that May Help Fight Acid Reflux HeatherAdministrator   08/23/13 01:38 PM
. * Coconut Oil for IBS? HeatherAdministrator   08/16/13 01:02 PM
. * Spicy Foods and IBS HeatherAdministrator   08/16/13 12:59 PM
. * Soy foods protect against colon cancer HeatherAdministrator   08/06/13 10:09 AM
. * A Tale of Two Fibers HeatherAdministrator   06/28/13 01:42 PM
. * Yet another reason to not skip breakfast HeatherAdministrator   06/18/13 11:24 AM
. * Less Meat = Longer Life HeatherAdministrator   06/12/13 05:18 PM
. * Limiting poorly digested carbs called FODMAPS may help ease irritable bowel syndrome HeatherAdministrator   05/22/13 02:55 PM
. * Fluids may prevent constipation better than anything HeatherAdministrator   05/21/13 01:46 PM
. * Fried foods have similar impact on your liver as hepatitis HeatherAdministrator   02/20/13 10:26 AM
. * Taming Stomachs With Fodmap Diet Spurs $8 Billion Market HeatherAdministrator   10/31/12 11:39 AM
. * Green tea drinkers show lower cancer risks HeatherAdministrator   10/31/12 11:37 AM
. * Atkins Low Carb-High Protein Diets May Put Heart at Risk HeatherAdministrator   06/27/12 02:36 PM
. * Milk fat may lead to bowel diseases by altering gut bacteria HeatherAdministrator   06/19/12 04:25 PM
. * Buddhist mindful eating practices enter the mainstream HeatherAdministrator   06/15/12 03:17 PM
. * High levels of fructose can damage liver HeatherAdministrator   06/15/12 03:15 PM
. * Vegetarian diet provides good nutrition, health benefits, study finds HeatherAdministrator   06/15/12 03:04 PM
. * Doubts cast on food intolerance testing HeatherAdministrator   05/03/12 03:19 PM
. * Starchy foods cut bowel cancer risk HeatherAdministrator   05/02/12 10:34 AM
. * Worldwide prevalence of lactose intolerance HeatherAdministrator   05/02/12 10:31 AM
. * Eating fish tied to lower risk of colon polyps HeatherAdministrator   04/23/12 01:25 PM
. * Dietary and other modifiable risk factors may account for as many as 90 percent of colorectal cancers HeatherAdministrator   04/23/12 01:14 PM
. * Helpful Gut Microbes May Differ Based on Diet HeatherAdministrator   09/07/11 12:16 PM
. * Soluble Fiber Appears Key to Trimming Bad Body Fat HeatherAdministrator   07/06/11 11:52 AM
. * Colon response to food is abnormal in irritable bowel syndrome HeatherAdministrator   04/19/11 01:42 PM
. * Red meat linked to cancer risks HeatherAdministrator   11/10/10 11:24 AM
. * White Rice for Functional Constipation HeatherAdministrator   10/13/10 02:53 PM
. * Adding gluten early may cause constipation in babies HeatherAdministrator   03/12/10 11:31 AM
. * Processed Meat May Harm the Heart HeatherAdministrator   03/12/10 11:27 AM
. * Increasing Soda Consumption Fuels Rise in Diabetes, Heart Disease HeatherAdministrator   03/12/10 11:26 AM
. * Strategy to combat cancer: Avoid meats and dairy products HeatherAdministrator   03/05/10 12:25 PM
. * Dietary Fiber May Help Prevent Weight Gain & Obesity HeatherAdministrator   03/05/10 12:16 PM
. * Soluble Fiber Helps IBS, Insoluble Fiber Hurts HeatherAdministrator   09/16/09 01:53 PM
. * IBS Diet Cheat Sheet Celebrates 1 Million Downloads by Irritable Bowel Syndrome Patients HeatherAdministrator   06/12/09 11:09 AM
. * Meat intake and mortality HeatherAdministrator   04/30/09 01:16 PM
. * Dietary changes highly acceptable to IBS patients HeatherAdministrator   03/18/09 05:51 PM
. * Role of dietary fructose and fructans in initiating symptoms of IBS in fructose malabsorbers HeatherAdministrator   08/07/08 12:20 PM
. * Therapeutic effects of eliminating allergic foods according to food-specific IgG antibodies in irritable bowel syndrome HeatherAdministrator   11/07/07 02:42 PM
. * Is there any food I can eat? Living with inflammatory bowel disease and/or irritable bowel syndrome. HeatherAdministrator   06/20/07 02:16 PM
. * More GI Symptoms, Less Anxiety With Tryptophan Supplementation in IBS HeatherAdministrator   04/28/07 10:18 AM
. * Abnormalities of GI transit in bloated irritable bowel syndrome: effect of bran HeatherAdministrator   12/01/06 02:08 PM
. * Influence of alcohol consumption on IBS and dyspepsia HeatherAdministrator   10/26/06 10:39 AM
. * Dietary means of diagnosing IBS HeatherAdministrator   02/01/06 12:10 PM
. * No evidence that soy estrogens increase cancer risk HeatherAdministrator   02/01/06 11:53 AM
. * Organic Diets Significantly Lower Children’s Dietary Exposure to Organophosphorus Pesticides HeatherAdministrator   01/08/06 05:21 PM
. * Carbonated Soft Drink Consumption and Risk of Esophageal Adenocarcinoma HeatherAdministrator   01/08/06 04:40 PM
. * Utility of Glycemic Index / Glycemic Load Questioned HeatherAdministrator   09/13/05 01:10 PM
. * IBS Sufferers Hypersensitive to Common Foods HeatherAdministrator   06/30/05 04:05 PM
. * Fruit, vegetable juices may stall Alzheimer's disease HeatherAdministrator   06/20/05 04:16 PM
. * UK investigates dietary management of constipation HeatherAdministrator   06/05/05 05:45 PM
. * Fructose intolerance in IBS could lead to fructose-free products HeatherAdministrator   04/10/05 06:45 PM
. * Fats and visceral sensitivity In IBS patients HeatherAdministrator   03/04/05 11:50 AM
. * Grapefruit Juice Can Interact With Medicines HeatherAdministrator   02/06/05 02:41 PM
. * Red Meat Consumption Linked to Colorectal Cancer HeatherAdministrator   01/23/05 05:12 PM
. * Dietary Fiber and GERD HeatherAdministrator   01/23/05 04:51 PM
. * Higher Fiber Shown To Reduce Estrogen Levels HeatherAdministrator   01/07/05 05:00 PM
. * Psyllium increases gas production and promotes gas retention HeatherAdministrator   11/28/04 02:43 PM
. * Soy could stop spread of breast cancer HeatherAdministrator   11/08/04 04:10 PM
. * Vegetarian Diet With Soy and Soluble Fiber Lowers Cholesterol HeatherAdministrator   10/28/04 07:09 PM
. * Soy is unlikely to damage fertility in women HeatherAdministrator   10/24/04 07:27 PM
. * Health-promoting compounds found in honey HeatherAdministrator   10/24/04 07:17 PM
. * Food Elimination Based on IgG Antibodies Helpful in Irritable Bowel Syndrome HeatherAdministrator   10/11/04 04:24 PM
. * The Lowdown on Low Carbs HeatherAdministrator   10/11/04 04:00 PM
. * Nut Consumption and Decreased Risk of Gallbladder Removal in Women HeatherAdministrator   09/26/04 03:12 PM
. * Yogurt and gut function HeatherAdministrator   09/26/04 03:06 PM
. * Cranberry Juice Found to Help Prevent Peptic Ulcers HeatherAdministrator   09/26/04 02:51 PM
. * High-Fiber, Low-Fat Diet Helps Calcium Prevent Colon Cancer HeatherAdministrator   08/30/04 01:18 PM
. * Herbs are an Abundant Source of Antioxidants HeatherAdministrator   08/08/04 03:17 PM
. * Soybean protein reduces body fat and triglycerides in women HeatherAdministrator   08/08/04 03:12 PM
. * Soy Cuts Risk of Endometrial Cancer HeatherAdministrator   07/24/04 02:23 PM
. * Alpha-Linoleic Acid in Walnuts Good for Cardiovascular Health HeatherAdministrator   07/24/04 02:02 PM
. * New list of the 20 most antioxidant-rich foods HeatherAdministrator   07/11/04 02:26 PM
. * Effect of fiber source on Clostridium difficile HeatherAdministrator   07/11/04 01:32 PM
. * High Protein Diet May Affect Female Fertility HeatherAdministrator   07/11/04 01:08 PM
. * Green Tea and Fruits May Have a Large Impact on GI Health HeatherAdministrator   06/04/04 06:35 PM
. * GI HEALTH AFFECTED BY CONSUMPTION OF COFFEE AND CARBONATED DRINKS HeatherAdministrator   06/04/04 06:30 PM
. * Bad news for low-carb dieters HeatherAdministrator   05/25/04 12:41 PM
. * Cancer Society Promotes Disease with Beef Fundraisers, Say Doctors HeatherAdministrator   05/25/04 12:37 PM
. * Too Much Drinking Could Serve Up Colon Cancer HeatherAdministrator   05/25/04 12:18 PM
. * Nutrition experts push trans fats ban - Say trans-fats are disastrous for your health. HeatherAdministrator   05/25/04 12:08 PM
. * Low-carb diets increase demand for laxatives HeatherAdministrator   05/10/04 12:59 PM
. * Systematic Review: The Role of Different Types of Fibre in IBS HeatherAdministrator   03/30/04 02:56 PM
. * High fructose corn syrup a major culprit in the nation's obesity crisis HeatherAdministrator   03/09/04 11:37 AM
. * While health foods may seem expensive, healthy diets save money in the long run HeatherAdministrator   03/08/04 06:50 PM
. * Stress May Lead To Food Allergies HeatherAdministrator   03/08/04 06:45 PM
. * McDonald's has documentary beef HeatherAdministrator   02/24/04 02:26 PM
. * Low Carb Diets are a Prescription for Prebiotics HeatherAdministrator   02/24/04 12:49 PM
. * Effects of a Low-Fat, High-Carbohydrate Diet on Body Weight HeatherAdministrator   01/26/04 05:28 PM
. * Fat, Fructose May Contribute to IBS Symptoms HeatherAdministrator   10/15/03 03:31 PM
. * Fructose may play role in irritable bowel syndrome HeatherAdministrator   10/13/03 12:11 PM
. * Essential Oils as Components of a Diet-Based Approach to Management of Helicobacter Infection HeatherAdministrator   09/30/03 01:34 PM
. * High Fiber, Low Fat Diet Reduces Estrogen Levels & Breast Cancer Risk HeatherAdministrator   09/30/03 12:56 PM
. * Milk Slows Recovery from Bowel Surgery HeatherAdministrator   09/16/03 04:03 PM
. * Water Works - Soluble Fiber and Heart Disease HeatherAdministrator   09/16/03 11:43 AM
. * Cows milk consumption in constipation and anal fissure in infants and young children HeatherAdministrator   08/12/03 12:03 PM
. * Intestinal gas production from bacterial fermentation of undigested carbohydrate in IBS HeatherAdministrator   07/18/03 12:05 PM
. * Fructose- and sorbitol-reduced diet improves mood and gastrointestinal disturbances HeatherAdministrator   07/18/03 11:58 AM
. * Beneficial health effects of low-digestible carbohydrate consumption. HeatherAdministrator   07/18/03 11:56 AM
. * Calcium polycarbophil compared with placebo in IBS HeatherAdministrator   07/15/03 11:10 PM
. * Nutritional therapy of irritable bowel syndrome. HeatherAdministrator   07/15/03 11:05 PM
. * Rice Demonstrates a Preventive Effect on Constipation HeatherAdministrator   07/14/03 04:05 PM
. * High-Protein Diets Can Hurt Kidneys HeatherAdministrator   07/14/03 04:01 PM
. * Diet and the irritable bowel syndrome. HeatherAdministrator   07/14/03 03:44 PM
. * Bran and irritable bowel syndrome: time for reappraisal HeatherAdministrator   07/14/03 03:41 PM
. * Bran: may irritate irritable bowel HeatherAdministrator   07/14/03 03:37 PM
. * Wheat bran vs. partially hydrolyzed guar gum for IBS patients HeatherAdministrator   07/14/03 03:34 PM
. * Dietary fibre in food and protection against colorectal cancer HeatherAdministrator   07/14/03 03:21 PM
. * Eating Food Too Fast Speeds Heartburn HeatherAdministrator   07/14/03 02:57 PM
. * Glycemic Load, Carbohydrate Intake, and Risk of Colorectal Cancer in Women HeatherAdministrator   07/14/03 02:37 PM

Extra information
0 registered and 4 anonymous users are browsing this forum.

Moderator:  Heather 



Permissions
      You cannot post until you login
      You cannot reply until you login
      HTML is enabled
      UBBCode is enabled

Thread views: 418582

Jump to

| Privacy statement Help for IBS Home

*
UBB.threads™ 6.2


Shop For IBS Here!