Navigation Links
Dietary fiber alters gut bacteria, supports gastrointestinal health
Date:6/27/2012

URBANA A University of Illinois study shows that dietary fiber promotes a shift in the gut toward different types of beneficial bacteria. And the microbes that live in the gut, scientists now believe, can support a healthy gastrointestinal tract as well as affect our susceptibility to conditions as varied as type 2 diabetes, obesity, inflammatory bowel disease, colon cancer, and autoimmune disorders such as rheumatoid arthritis.

As these microbes ferment fiber in the intestine, short-chain fatty acids and other metabolites are produced, resulting in many health benefits for the host, said Kelly Swanson, a U of I professor of animal sciences.

"When we understand what kinds of fiber best nurture these health-promoting bacteria, we should be able to modify imbalances to support and improve gastrointestinal health," he said.

This research suggests that fiber is good for more than laxation, which means helping food move through the intestines, he added.

"Unfortunately, people eat only about half of the 30 to 35 grams of daily fiber that is recommended. To achieve these health benefits, consumers should read nutrition labels and choose foods that have high fiber content," said Swanson.

In the placebo-controlled, double-blind intervention study, 20 healthy men with an average fiber intake of 14 grams a day were given snack bars to supplement their diet. The control group received bars that contained no fiber; a second group ate bars that contained 21 grams of polydextrose, which is a common fiber food additive; and a third group received bars with 21 grams of soluble corn fiber.

On days 16-21, fecal samples were collected from the participants, and researchers used the microbial DNA they obtained to identify which bacteria were present. DNA was then subjected to 454 pyrosequencing, a "fingerprinting" technique that provides a snapshot of all the bacterial types present.

Both types of fiber affected the abundance of bacteria at the phyla, genus, and species level. When soluble corn fiber was consumed, Lactobacillus, often used as a probiotic for its beneficial effects on the gut, increased. Faecalibacterium populations rose in the groups consuming both types of fiber.

According to Swanson, the shifts in bacteria seen in this studywhich occurred when more and differing types of fiber were consumedwere the opposite of what you would find in a person who has poor gastrointestinal health. That leads him to believe that there are new possibilities for using pre- and probiotics to promote intestinal health.

"For example, one type of bacteria that thrived as a result of the types of fiber fed in this study is inherently anti-inflammatory, and their growth could be stimulated by using prebiotics, foods that promote the bacteria's growth, or probiotics, foods that contain the live microorganism," he said.


'/>"/>

Contact: Phyllis Picklesimer
p-pickle@illinois.edu
217-244-2827
University of Illinois College of Agricultural, Consumer and Environmental Sciences
Source:Eurekalert

Related medicine news :

1. A Revolutionary Dietary Paradigm: New Cookbook Features A SOS-free (Salt, Oil, Sugar ) Diet That Delivers the Optimal Food Plan for Renewing Health
2. Dietary supplements increase cancer risk
3. Dietary changes help some children with ADHD
4. The Law Office of Wolf & Pravato, The Alters Firm and Morelli Ratner File Class Action Lawsuit Against Global Spray Foam Manufacturer
5. Brain Falters Near End of Life, but Games, Puzzles Might Slow Decline
6. Study supports urate protection against Parkinsons disease, hints at novel mechanism
7. Study Supports Value of Sigmoidoscopy, an Alternative to Colonoscopy
8. Gastroenterology Societies issue sedation curriculum for gastrointestinal endoscopy
9. Antibody therapy prevents gastrointestinal damage following radiation exposure in mice
10. Study examines how parenthood affects gay couples health, HIV risk
11. Exercise Program Boosts Health After Lung Transplant: Study
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/18/2017)... ... 2017 , ... Hernandez Insurance Agencies, a northern Virginia firm ... DC region, is inaugurating a “New Leash On Life” charity initiative in conjunction ... to be companions for veterans in need. , The Semper K9 organization works ...
(Date:8/18/2017)... ... August 18, 2017 , ... MLM Insurance Group, a ... throughout southern Florida, is working to support the Take Stock In Children Foundation ... income families. , The Take Stock In Children Foundation (TSC) offers guidance and ...
(Date:8/18/2017)... ... 2017 , ... The Golseth Agency, a Texas based insurance management and financial ... regional charity campaign organized to provide support to Christina Upchurch and her two children ... and her children returned from out of town to find her husband passed away ...
(Date:8/18/2017)... ... 18, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh in Abilene, ... on false teachings pertaining to the mother of the Savior whom the world calls “Mother ... different picture of the role of this historical woman. , “The world bows, kisses ...
(Date:8/18/2017)... ... August 18, 2017 , ... 800response, the leading ... solutions, announced today the launch of a redesigned corporate website, 800response.com . ... fully responsive design, and an enhanced search directory for businesses and advertising agencies ...
Breaking Medicine News(10 mins):
(Date:8/15/2017)... Inc., the creator of the drug Truveta for the treatment ... IPO. The United States spends approximately ... prescription epilepsy drug being $450.00-$1200.00 for a one month supply. ... AXIUM PHARMACEUTICALS, INC ... is the fact that Americans spent $42 billion on anxiety medications last ...
(Date:8/14/2017)... HACKENSACK, N.J. and PETACH TIKVAH, ... Therapeutics Inc. (NASDAQ: BCLI), a leading developer of adult ... for the second quarter ending June 30, 2017. ... advanced stages of preparing for our pivotal Phase 3 ... Chaim Lebovits , President and Chief Executive Officer ...
(Date:8/8/2017)...  BioLineRx Ltd. (NASDAQ/TASE: BLRX), a clinical-stage biopharmaceutical company ... results for the second quarter ended June 30, 2017. ... 2017 and to date: ... the Company,s lead project, BL-8040: Announced ... as novel stem cell mobilization treatment for autologous bone-marrow ...
Breaking Medicine Technology: