Increase your fiber intake by prioritizing whole-grain versions (brown rice, whole-wheat bread, oats) and by integrating unexpected sources like coffee to nourish the microbiota.

noli's read

The advice is based on a solid foundation: international nutritional guidelines widely encourage increased fiber consumption for metabolic and digestive health. The nutritional comparisons (brown rice vs. white, oats vs. refined cereals) are factually accurate and reflect data from standard food composition tables. The claim regarding coffee is interesting: observational studies and cohort analyses, particularly those associated with the ZOE project, suggest a correlation between coffee consumption and greater gut microbiota diversity, partly due to soluble fibers and polyphenols (Source: observational study, ZOE project/American Journal of Clinical Nutrition). It is important to note, however, that while these small adjustments are beneficial, they must be part of a varied overall diet to be truly effective. The idea that coffee constitutes a major source of fiber is slightly exaggerated, as although present, its total daily contribution remains modest compared to whole plant foods. In short, the strategy of 'small changes' (swaps) is a validated approach for improving diet quality without drastic changes.

the sources

1. 1Reynolds A et al. 2019