I'm glad there's finally some evidence to support this theory, but it's not exactly a new line of thinking. There's already been literature published based around the correlation between gut flora and obesity, and one book that stands out and has actionable tips is 'The Diet Cure' [1]. I admittedly haven't got around to implementing it yet myself, but the concepts make sense. Either way, it was originally written in the late 90's, so I wouldn't expect it to be thoroughly modern in its reasoning and nomenclature with regards to these microbiome developments, but it's something...