Microbial composition
Neither intervention affected alpha or beta diversity (data not shown). Bacterial phylotype analysis revealed significant changes in the relative abundances of bacterial communities. There were significant increases in the relative abundance of the bacterial phyla Proteobacteria (Effects of Meat and Mycoprotein phases on gut microbial phylum composition. Gut microbial phylum composition at baseline and completion for both Meat and Mycoprotein phases. There were significant increases in At the genera level, Effects of Meat and Mycoprotein phases on gut microbial genera. Gut microbial genera identified as significant for difference between study phase effects. Differences between study phases assessed using generalised mixed-effects models (Effects of Meat and Mycoprotein phases on gut microbial genera. In total, the analysis identified 392 OTUs in the samples. The OTUs identified as significantly different within and between study phases are included in the Supplementary Material: Table 3.