Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Increased fiber curbs appetite in women

01.11.2002


Everyone knows that if you eat a plate of beans or a bowl of bran cereal, you’re likely to get full pretty quickly. UC Davis nutrition researchers now have a better idea why.



A UC Davis study, published recently in the American Journal of Clinical Nutrition, indicates that increased fiber content in a meal boosts feelings of fullness in women and increases levels of a certain hormone associated with satiety.

Previous research has shown that the hormone cholecystokinin is released from the small intestine when a fat-containing food is eaten. It’s thought that this hormone may be the chemical messenger that acts in response to fat to notify the brain that the body is getting full.


Now it appears that fiber can trigger the same signaling mechanism as fat.

In an effort to better understand cholecystokinin’s role, the UC Davis researchers decided to test how levels of the hormone respond to increases in dietary fat and fiber, and how that hormonal response corresponds to feelings of satiety.

To do so they fed a test group, including equal numbers of men and women, three different breakfast meals. The test meals were either low-fiber, low-fat; high-fiber, low-fat; or low-fiber, high-fat.

Blood samples were drawn before, during and after the meals were eaten, to measure hormone levels. They release of the hormone cholecystokinin was correlated with the feelings of satiety reported by the subjects.

The researchers found that in women both the high-fat and high-fiber meals resulted in greater feelings of satiety and significantly higher levels of cholecystokinin, than did the low-fat, low-fiber meals.

In men, however, the two low-fat meals caused greater feelings of satiety, and there was not a significant difference in the hormonal increase between the various meals.

"These results indicate that the addition of fiber to a meal can increase a person’s feeling of being full," said Barbara Schneeman, a UC Davis nutrition professor, who led the study. "It appears this is due not only to fiber creating a greater volume of food in the gastrointestinal tract, but also to fiber promoting the release of cholecystokinin."

She noted that further research is needed to help understand the long-term effects of fiber on controlling food consumption and energy balance, and to determine the role that gender plays in the mechanisms that control food intake.


Media contacts: Barbara Schneeman, Nutrition, (530) 752- 0133, boschneeman@ucdavis.edu; Patricia Bailey, News Service, (530) 752-9843, pjbailey@ucdavis.edu

Patricia Bailey | EurekAlert!
Further information:
http://www.ucdavis.edu/

More articles from Health and Medicine:

nachricht Cholesterol-lowering drugs may fight infectious disease
22.08.2017 | Duke University

nachricht Once invincible superbug squashed by 'superteam' of antibiotics
22.08.2017 | University at Buffalo

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

What the world's tiniest 'monster truck' reveals

23.08.2017 | Life Sciences

Treating arthritis with algae

23.08.2017 | Life Sciences

Witnessing turbulent motion in the atmosphere of a distant star

23.08.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>