Do not take probiotics immediately after a course of antibiotics, as this could delay the natural recolonization of your gut microbiome.

noli's read

Dr. Bulsiewicz relies on a study published in Cell (Suez et al., 2018), a randomized controlled trial (RCT) that indeed observed in humans that standard probiotics could delay the return to the microbiome's initial equilibrium after antibiotic therapy. This study is robust and marked a turning point in the understanding of gut ecology. It is important to note that these results specifically concern 'colonization' and overall bacterial diversity, and do not necessarily mean that probiotics are useless in all contexts, such as for preventing certain specific types of diarrhea. The claim is therefore scientifically well-founded, although the long-term clinical impact on overall health remains an active area of study. The advice is a cautious and relevant interpretation of current evidence, avoiding overgeneralization while highlighting a crucial nuance.

the sources

No named source held this one up — that absence is part of the verdict.