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(Health) Dietary Fiber: Why Fiber is Healthy

 
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adedios
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Joined: 06 Jul 2005
Posts: 5060
Location: Angel C. de Dios

PostPosted: Wed Aug 23, 2006 8:19 am    Post subject: (Health) Dietary Fiber: Why Fiber is Healthy Reply with quote






Why Fiber is Healthy: Because It Damages Our Insides

By Sara Goudarzi
LiveScience Staff Writer
posted: 22 August 2006
09:45 pm ET

Fiber helps keep us "regular" by banging up against the gastrointestinal tract and tearing cells, which release mucus that helps us, well, go, scientists reported today.

The frequent injury of cells and their subsequent repair cause more mucus production, which eases food through the pipes and provides protection for the cells themselves.

"It's a bit of a paradox, but what we are saying is an injury at the cell level can promote health of the GI tract as a whole," said study co-author, Paul L. McNeil, cell biologist at the Medical College of Georgia. "These cells are a biological boundary that separates the inside world, if you will, from this nasty outside world. On the cellular scale, roughage, such as grains and fibers that can't be completely digested, are a mechanical challenge for these cells."

For the full article:

http://www.livescience.com/hum.....anism.html

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Questions to explore further this topic:

What is dietary fiber?

http://library.thinkquest.org/26813/carbsfibre.htm
http://www.hsph.harvard.edu/nu.....fiber.html
http://www.childrenshospital.o...../Fiber.pdf
http://www.health.gov/DietaryG.....apter7.htm
http://www.whfoods.com/genpage.....mp;dbid=59

Dietary Reference Intakes: Proposed Definition of Dietary Fiber (2001) Institute of Medicine (IOM)

http://darwin.nap.edu/books/0309075645/html

What are the different types of dietary fiber?

http://www.healthcastle.com/fi.....uble.shtml

What foods are high in fiber?

http://www.healthcastle.com/high-fiber-foods.shtml

What are carbohydrates?

http://www.feinberg.northweste.....rates.html
http://www.paete.org/forums/viewtopic.php?t=1366
http://www.essentialnutrition.org/carbs.php

What is the role of carbohydrates in your diet?

http://www.pamf.org/health/toyourhealth/carbs.html

A Healthier You

http://www.health.gov/dietaryg.....ntents.htm

Food Facts Display

http://www.rlhec.org/Resources.....Nutrition/

Diabetes and fiber

http://www.diabetes.org/diabet.....-carbs.jsp
http://www.jacn.org/cgi/content/full/23/1/5

GAMES

http://www.filebox.vt.edu/user.....yramid.htm
http://www.nutritionexploratio.....s-main.asp
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adedios
SuperPoster


Joined: 06 Jul 2005
Posts: 5060
Location: Angel C. de Dios

PostPosted: Tue Mar 27, 2007 7:51 am    Post subject: University of Leicester research reveals rice bran could red Reply with quote

University of Leicester
27 March 2007

University of Leicester research reveals rice bran could reduce risk of intestinal cancer

Report in British Journal of Cancer provides preclinical evidence on possible health benefits of rice bran
A study by biomedical scientists at the University of Leicester has revealed for the first time that rice bran could reduce the risk of intestinal cancer.

The research in the University's Department of Cancer Studies and Molecular Medicine has not been tested on humans, but research in the laboratory has produced promising results.

The research has been published in the British Journal of Cancer.

The results of a controlled laboratory study in a preclinical model of gastrointestinal adenoma demonstrated that consumption of a high daily dose of stabilized rice bran caused an average 51% reduction in the number of precancerous adenomas in the intestinal tract.

Professor Andreas Gescher of the University of Leicester in the UK, the principal investigator, said:

"We compared the cancer-preventive efficacy of rice bran with respect to prostate, breast and intestinal cancers. Whilst there was no effect of rice bran on the development of prostate or breast cancer, rice bran significantly retarded the development of intestinal adenomas. The effect was dependent on the fibre content of the bran. The dose we used translates into approximately 200g rice bran per day in humans. We believe a promising area of future research would be to study the potential colorectal cancer-preventing properties of stabilized rice bran.

"It is known that bran from wheat and rye have anti-cancer properties but this is the first time that this has been shown for rice bran. It appears that rice bran may have a role to play in reducing the development of adenomas, which can be a pre-cursor to cancer. No one has compared the efficacy of the different brans, such as rice, wheat, rye or oat and this may be an interesting future direction for researchers."
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