September 10, 2024 by Brooke Pier, Pennsylvania State University Guar gum exacerbated DSS-induced acute colitis. Credit: Gut Microbes (2024). DOI: 10.1080/19490976.2024.2341457For many people, an enjoyable summer staple food is a scoop of their favorite ice cream. What they may not know is that this creamy treat often contains refined dietary fibers, such as guar gum,...
JUNE 25, 2024 by Technical University of Denmark The essential amino acid tryptophan is converted in the large intestine into either beneficial or harmful substances. The research shows that tryptophan contributes to the production of the healthy substances Indole lactic acid (ILA) and Indole propionic acid (IPA) when we consume sufficient amounts of dietary fiber....
by Tokyo University of Science Gut bacteria break down dietary fiber into short-chain fatty acids, which are known to affect our immune system. In this study, researchers investigated in detail the mechanisms by which these compounds mediate the activation of mast cells. Credit: Chiharu Nishiyama from Tokyo University of Science, JapanThe intricate relationship that exists between...
by Weill Cornell Medical College Color-enhanced goblet cells (dark purple) in lung epithelium. Credit: Dr. Mohammad Arifuzzaman and Dr. David Artis A type of dietary fiber called inulin, commonly used in health supplements and known to have certain anti-inflammatory properties, can also promote an allergy-related type of inflammation in the lung and gut, and other...
By Julia Evangelou Strait, Washington University School of Medicine in St. Louis Graphical abstract. Credit: Cell (2022). DOI: 10.1016/j.cell.2022.06.004 A new study from Washington University School of Medicine in St. Louis demonstrates that certain human gut microbes can mine dietary fiber to extract nutrients that otherwise would remain inaccessible to the human body. The study, published June...
CHINESE ACADEMY OF SCIENCES HEADQUARTERS Dietary fiber is generally thought to benefit intestinal health. Its impact on the composition and metabolic function of the gut microbiome, however, varies greatly across individuals. Previous studies have shown that each individual’s response to fiber depends on the baseline gut microbiome, but the ecology driving microbiota remodeling during fiber...
by Liz Ahlberg Touchstone, University of Illinois at Urbana-Champaign Credit: Pixabay/CC0 Public Domain Dietary fiber found in grains is a large component of many diets, but little is understood about how we digest the fiber, as humans lack enzymes to break down the complex molecules. Some species of gut bacteria break down the fiber in such...
