Why 2 Grams Gets 'Source' but Only 7 Grams Gets 'Excellent Source'
24 September 2026
Australia's food code sets exact fibre thresholds in grams per serve, and those numbers, not marketing, decide what a label is allowed to say.
News
Fibre, explained properly
Plain-English articles on fibre and the gut, built on the same verified research as the rest of the site. Null results included.
What Is Fibre Used For? The Two Jobs It Does in Your Gut
24 September 2026
Fibre resists digestion in the small intestine by definition, which leaves it exactly two jobs to do further along: hold water and feed bacteria.
What 25 Grams of Fibre Looks Like: Oats, a Pear and a Cup of Lentils
24 September 2026
A day's worth of oats, a pear and a cup of lentils adds up to about 23.8 g of fibre, showing exactly how close ordinary food gets you to the 25 g and 30 g daily targets.
One Fibre, Not the Other: What a 2009 Trial Found for Irritable Bowel Syndrome
14 September 2026
A 2009 trial of 275 people with irritable bowel syndrome found that psyllium eased symptoms while bran performed no better than placebo, showing that fibre type matters more tha...
2014 Nature Study: Diet-Induced Changes in Gut Bacteria
13 September 2026
A 2014 Nature study found that gut bacteria changed within days when volunteers swapped diets entirely, with significant changes in microbial communities.
The Trial That Put Its Null Result in the Title
12 September 2026
A 2021 trial in Clinical Nutrition raised bifidobacteria in 20 prefrail and 24 healthy adults but found no change in immune or oxidative-stress markers, and said so plainly in t...
2026 Review of Butyrate Production in the Human Gut
11 September 2026
Butyrate is a short-chain fatty acid gut bacteria make from fibre, and the cells lining the colon use it as their main fuel.
72.7% Bacteroidota: The Surprising Microbiome of Elite Cyclists
10 September 2026
Elite cyclists have depleted fibre-fermenting bacteria despite their high fitness level, highlighting the importance of a balanced diet with sufficient fibre intake.
Why Soluble Versus Insoluble Doesn't Predict What Fibre Actually Does
9 September 2026
A 2017 review in the Journal of the Academy of Nutrition and Dietetics found the soluble/insoluble split poorly predicts fibre's effects, and gelling versus fermentation explain...
2,081 Women, 404 Species: What the Largest Gut-Ageing Study Found
7 September 2026
A 2026 Nature Communications study of 2,081 elderly Swedish women found frailty tracked with a thinner, less varied gut microbiome, though it cannot say which came first.
What 49 Men and 32 Women Showed About Whole Grains Over Six Weeks
6 September 2026
A 2017 trial of 81 adults found that swapping refined grains for whole grains produced measurable but modest shifts in stool weight, frequency and gut bacteria.
In Scientific Reports 2025, 30 Blood Markers Separated Eczema From Healthy Skin
5 September 2026
A 2025 study of 50 adults with atopic dermatitis found gut-linked blood markers that tracked with eczema severity, pointing researchers back to fibre and gut bacteria.