University of Sydney Sep 10 2025 New research from the University of Sydney's Charles Perkins Centre has found that genes play an active role in shaping the bacteria found in our gut, questioning the idea that gut health is influenced only by diet.  The gut microbiome is increasingly seen as vital to overall health, with Australia's gut health supplement industry valued at over $400 million in 2024. After decades of research linking the gut microbiome to almost every chronic disease, it may