Recent content by Michael Harrop

  1. Michael Harrop

    Procedure DIY FMT Beginner's Questions

    Avoiding deadly pathogens and problems that are not obvious without tests.
  2. Michael Harrop

    Procedure DIY FMT Beginner's Questions

    Wherever you read that is a low-quality source of information because that's not correct. The wiki covers FMT prep: https://humanmicrobiome.info/fmt/
  3. 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.

    Looking at the link, there doesn't seem to be a way to send it to anyone. It looks like just another petition site, and there's already a petition. It's also missing context and citations, so it doesn't seem like a useful thing to send to anyone, as it assumes that people will already be...
  4. Michael Harrop

    Is a lot of probiotics the same as FMT? Anyone try VSL 3? I’m trying a high dose (around 230 billion CFU daily)

    If you take FMT that lackadaisically, you're likely to get worse. What you listed is not how you select & screen a donor. https://humanmicrobiome.info/fmt/ This does not exist.
  5. Michael Harrop

    Is a lot of probiotics the same as FMT? Anyone try VSL 3? I’m trying a high dose (around 230 billion CFU daily)

    Not even close. Probiotics can be, and often are, highly disruptive. https://humanmicrobiome.info/probiotic-guide/ In large part, the opposite of FMT.
  6. Michael Harrop

    I’m terrified and don’t want to eventually develop a horrible disease, my gut is ruined! Help!

    Did you review the wiki? https://humanmicrobiome.info/testing/ That's generally correct. This is misleading to the point of being misinformation. Presumably they have already seen a doctor and ruled out other causes. It is very rare that something like this is not related to the gut microbiome.
  7. Michael Harrop

    FMT Fecal transplants: Study is a 'wake-up call' for the field as researchers identify unintended consequences. (Jun 2025, mice) Microbiome mismatches from microbiota transplants lead to persistent off-target metabolic and immunomodulatory effects

    A commentary by someone who does FMT in the UK: Microbiota transplants: the concept of ‘microbiome mismatching’ explored (Nov 2025) https://www.nature.com/articles/s41392-025-02464-9 I didn't find anything useful in it.
  8. Michael Harrop

    FMT and COVID-19, vaccines. Any concerns about COVID vaccination affecting FMT quality? Does it matter if the donor is vaccinated?

    Look at the posts he made: https://forum.humanmicrobiome.info/search/1113145/?c[nodes][0]=6&c[users]=SFBayFMT5&o=date
  9. Michael Harrop

    FMT and COVID-19, vaccines. Any concerns about COVID vaccination affecting FMT quality? Does it matter if the donor is vaccinated?

    One should be extremely cautious, especially because, in my opinion, there are no safe sources of FMT right now. But further discussion of that in this thread is off-topic.
  10. Michael Harrop

    FMT and COVID-19, vaccines. Any concerns about COVID vaccination affecting FMT quality? Does it matter if the donor is vaccinated?

    The wiki has a page on this that includes a section covering vaccines' impacts on the gut microbiome: https://humanmicrobiome.info/immune-system/ There's a good quote from researcher Rob Knight. There are much more important considerations when selecting a donor.
  11. Michael Harrop

    Article The ‘Worst Test in Medicine’ is Driving America’s High C-Section Rate. Round-the-clock fetal monitoring leads to unnecessary C-sections, but it’s used in nearly every birth because of business and legal concerns (Nov 2025) A Grave Condition, Placenta accreta, Caused by C-Sections Is now on the Rise

    https://www.nytimes.com/2025/11/06/health/electronic-fetal-monitoring-c-sections.html It’s accompanied by this article: A Grave Condition Caused by C-Sections Is on the Rise. Placenta accreta is a life-threatening condition in which the placenta attaches to scar tissue left by a C-section. It...
  12. Michael Harrop

    FMT The challenges and opportunities in the expanding horizons of microbiota transplant therapies (Nov 2025, editorial)

    https://www.tandfonline.com/doi/full/10.1080/19490976.2025.2559032 This is significant because it's written by Dr. Alexander Khoruts, who runs the main/only stool bank in the US. I wrote to him some months ago about his previous supposed objections to the FDA regulating FMT as a drug, and the...
  13. Michael Harrop

    Article FDA Drug Unit Chief Resigns, and Is Sued by Drug Company. The official, Dr. George Tidmarsh, has become embroiled in an ethical dispute and is now the target of a lawsuit over his actions involving certain drugs tied to a business associate. (Nov 2025)

    https://www.nytimes.com/2025/11/02/health/fda-drug-unit-chief.html
  14. Michael Harrop

    Vagina Awareness of the Vaginal Microbiome and Willingness to Undergo Vaginal Microbiota Transplant (Oct 2025, n=210) "More than 50% were willing or very willing"

    https://www.jognn.org/article/S0884-2175(25)00271-0/abstract The percent of "willing" in this study is generally around 60%.
  15. Michael Harrop

    Healthcare system Incoming trump admin with RFK signals new start for FDA

    There was a Senate hearing scheduled today for Casey Means: POSTPONED: Hearing title Nomination of Casey Means to be Medical Director in the Regular Corps of the Public Health Service and Surgeon General of the Public Health Service...
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