Did quick research on how to support the bacteria growth

> Dietary modifications that emphasize high-fiber and prebiotic foods and dietary supplements may support the healthy growth of Roseburia [1]

> As stated above, a Mediterranean diet is associated with increased Roseburia growth. This diet emphasizes primarily plant-based foods: whole fruits and vegetables, whole grains, legumes, nuts and seeds, olive oil, and fatty fish. The high fiber and resistant starch content of these foods may fuel Roseburia and the other beneficial flora of the human microbiome [1]

> Polyphenols are plant compounds abundant in fruits, vegetables, tea, and coffee. Emerging research indicates that polyphenols can enhance Roseburia abundance indirectly by inhibiting harmful bacteria and fostering beneficial ones. [2]

[1] https://www.rupahealth.com/post/roseburia-spp-101

[2] https://www.innerbuddies.com/pages/gut-microbiome-101/gut-ba...

Thanks for the dietary info! Helps make it concrete.

tl;dr They don't know.

I wish scientists would be more open about how little they understand digestion and nutrition, particularly on an individual level. Advice gets presented as an if-then, when it's not.