Dietary fiber is often seen as essential for gut health. However, is it always beneficial? New research challenges this idea, highlighting that not all fibers act the same and that context, type, and dose matter.
The benefits of fiber in celiac disease may depend on having the right bacteria in the gut
15 May 2026by GMFH Editing Team
The gluten-free diet for celiac disease can be low in fiber. Researchers from McMaster University showed that people with celiac disease had reduced capacity to metabolize dietary fiber in the small intestine because they lack key fiber-degrading bacteria.
“Fibermaxxing” social media trend is making people talk about dietary fiber. What does science really say?
19 Nov 2025by GMFH Editing Team
Across social media, #fibermaxxing is inspiring people to boost their daily fiber intake. While enthusiasm for healthier eating is positive, this trend also invites an important question: what does science really say about fiber, microbiota, and health?
A new study reveals that consuming fiber-rich foods can play a crucial role in cancer prevention. The research shows that some products of fiber digestion by gut microbiota, such as butyrate and propionate, can alter gene expression and exert anti-tumor effects. These findings highlight the importance of including whole grains, vegetables, fruits, legumes, and nuts in our daily diet to support long-term health.
Restricting dietary fiber is a common advice for people living with inflammatory bowel disease. New research shows that not all fibers work the same and their impact on intestinal inflammation and gut barrier function depends on the type of fiber, individual immune status and the fermentative capacity of their gut microbes.
Diet variety is related to gut microbiome diversity and a greater abundance of some potentially beneficial bacteria. A new study suggests how increasing the quantity and diversity of dietary fiber intake by consuming multi-fiber bread may improve cholesterol and insulin resistance by altering gut microbiome composition and function.
Food, and its food components, nutrients or additives, can affect the composition and function of the gut microbiota. This article provides a summary of the food components that contribute to optimal microbiota health and explains how they can impact it.
Why the quality of your diet is the best recipe for a healthier gut microbiota and better health
15 Apr 2021by Andreu Prados
The gut microbiota is largely shaped by what you eat. Recently, a large study involving more than 1,000 people showed that a balanced and nutritious diet supports a healthier gut microbiota and better health, while a diet full of highly processed foods with added sugar and salt promotes a gut microbiota linked to poor metabolic health.
A healthy gut for a healthy heart? A 10-year study looks at the gut-heart connection
17 Feb 2021by Megan Mouw
A new study suggests that the gut microbiota may be a novel avenue for exploring heart disease prevention. This article explains how a diet higher in plants and lower in animal products may decrease heart disease risk thanks to the reduction in certain metabolites produced by the gut microbiota.
This infographic lets you find out more about Lactobacillus, one of gut microbiota’s main microorganisms, along with information on how it functions and in which foods it is present.
