Recent content by Michael Harrop

  1. Michael Harrop

    Donors Using obese healthy child as donor?

    There is no such thing as an obese, healthy person. https://humanmicrobiome.info/obesity/
  2. Michael Harrop

    Blog The FDA and FMT regulation, part 2. (Jul 2024, HumanMicrobes.org) I met with the FDA. Here's what I shared with them, and their response.

    Someone posted on the Effective Altruism forums about it, and directly contacted a group of athletes involved with EA. Nothing came of it. I've commented on the EA and LessWrong websites about it, and have had some really poor responses that made me averse to those websites. Eliezer Yudkowsky...
  3. Michael Harrop

    Donors Where to get a stool donor for FMT or how to find one?

    There's a summary here: https://forum.humanmicrobiome.info/threads/the-fda-and-fmt-regulation-part-2-jul-2024-humanmicrobes-org-i-met-wit.520/#post-1370 In the US, an IND is required. Physicians can do single-patient INDs. It is a worldwide project, but I've paused all sales because I was...
  4. Michael Harrop

    Video The false promises of Bryan Johnson and Functional Medicine | The Bryan Johnson "Hit Piece". Surprising revelations in the New York Times put Johnson's integrity into question | Scott Carney

    Yes, I agree. I think I emailed a doctor he was working with, but I didn't find a contact for him specifically. I also replied to a related tweet he posted. Feel free to write to him. For a "call to action" I generally share this summary of the situation...
  5. Michael Harrop

    Study Fathers' microplastics exposure tied to their children's metabolic problems (Dec 2025) Paternal microplastic exposure alters sperm small non-coding RNAs and affects offspring metabolic health in mice

    https://medicalxpress.com/news/2025-12-fathers-microplastics-exposure-children-metabolic.html https://academic.oup.com/jes/advance-article/doi/10.1210/jendso/bvaf214/8383852
  6. Michael Harrop

    Diet A common food ingredient may shape a child’s health for life (Jul 2025, mice) Maternal emulsifier consumption alters the offspring early-life microbiota and goblet cell function leading to long-lasting diseases susceptibility. Carboxymethylcellulose and polysorbate-80

    https://www.sciencedaily.com/releases/2025/12/251225080732.htm https://www.nature.com/articles/s41467-025-62397-3
  7. Michael Harrop

    Diet Diet outperforms microbial transplant to drive microbiome recovery in mice (April 2025)

    Not for me.
  8. Michael Harrop

    Oral Super donor assessment tool for oral microbiome transplantation (Dec 2025, n=93)

    https://link.springer.com/article/10.1186/s12866-025-04630-z Paywalled.
  9. Michael Harrop

    Video Is SIBO real? SIBO vs dysbiosis? Debunking the SIBO hypothesis | Small Intestinal Bacterial Overgrowth

    Definitely.
  10. Michael Harrop

    FMT Awareness and perception of fecal microbiota transplantation in Lebanon: a cross-sectional survey among the general population, healthcare workers, physicians, and patients (Dec 2025, n=725) 31% prior awareness, 60% positive perception. Awareness & perception highest among physicians.

    https://journals.sagepub.com/doi/10.1177/17562848251399034
  11. Michael Harrop

    Video Is SIBO real? SIBO vs dysbiosis? Debunking the SIBO hypothesis | Small Intestinal Bacterial Overgrowth

    Of course. https://humanmicrobiome.info/obesity/ If you review the OP, you can see that there is no way to have or determine dysbiosis solely in the small intestine and not the large intestine. This is nonsense, not backed by any science that I'm aware of. Bile acid metabolism is a more...
  12. Michael Harrop

    Why are bacteria more likely to colonize when doing FMT compared to taking regular probiotics?

    You'd have to use the prefix filter: https://forum.humanmicrobiome.info/forums/microbiome-studies-articles/?prefix_id=6, and look through the wiki.
  13. Michael Harrop

    FMT Efficacy of oral and rectal administration of human faecal microbiota transplant (FMT) in human microbiota-associated mouse models (Dec 2025)

    https://www.nature.com/articles/s41598-025-32072-0
  14. Michael Harrop

    Why are bacteria more likely to colonize when doing FMT compared to taking regular probiotics?

    Don't you have a science degree? You constantly say the most unscientific things, demonstrating a fundamental lack of understanding of how basic evidence works. Overwhelmingly, the evidence contradicts your claims: https://humanmicrobiome.info/where-to-get-fmt/ The sources that process their...
  15. Michael Harrop

    Enhancing Should I take biofilm buster before FMT?

    There's not a lot of research on it, but there's a previous discussion & experiment: Improve FMT effectiveness with mucus and biofilm dissolver? N-acetyl cysteine (NAC)
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