Butyrate Production
Butyrate is a short-chain fatty acid gut bacteria make from fibre, and the cells lining the colon use it as their main fuel.
A review in Biotechnology Journal, 2026, identified Faecalibacterium prausnitzii, Roseburia species and Eubacterium rectale as the keystone producers of butyrate in the human gut.
Gut Environment
The same review in Biotechnology Journal, 2026, describes how these bacteria keep the gut lining low in oxygen, creating conditions that make it harder for oxygen-tolerant bacteria to move in.
This environment is crucial for maintaining a balanced gut ecosystem.
Research Challenges
Despite the importance of butyrate, the review in Biotechnology Journal, 2026, notes that depleted butyrate producers are often found alongside gut issues, and that turning butyrate into a therapy has been much harder than the mechanism suggests.
Australian nutrient reference values set daily fibre targets of 25 g for women and 30 g for men, highlighting the importance of fibre in the diet.
Prebiotic Fibre
A daily prebiotic fibre powder, such as BIOMEWARD, can provide a blend of fibres, including PHGG, psyllium, resistant potato starch, acacia, and inulin, to support the growth of beneficial bacteria in the gut.
The research page links 36 papers, including 35 human studies and one laboratory study, demonstrating the importance of fibre in supporting gut health.