To avoid a lasting loss of precious gut bacteria, you must send them a regular signal by consuming fiber, polyphenols, and resistant starch daily, as these bacteria actively detect the presence of food to survive.

noli's read

The ability of bacteria to detect and move toward nutrients (chemotaxis) is a biological fact solidly established by fundamental in vitro research. Furthermore, the importance of fiber in nourishing our gut ecosystem is widely demonstrated by meta-analyses of clinical trials (such as that of Barber et al., 2020). As for the idea that certain families of bacteria can go extinct if they lack food, it draws on pioneering work by the team of Justin Sonnenburg at Stanford (published in Nature in 2016, animal observation model) showing that a prolonged fiber deficit depletes bacterial diversity over several generations. In human adults, a temporary gap reduces the activity of these bacteria rather than eliminating them instantly, because our microbiota is resilient in the short term. The creator's emphasis on daily consistency rather than perfection is therefore an excellent recommendation supported by the consensus of nutrition experts.

the sources

1. 1McDonald D et al. (American Gut Project) 2018
2. 2Reynolds A et al. 2019