Recent content by Michael Harrop

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.

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

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.

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.

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...

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...

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

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

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...

Certain strains of it. Are there specific human-sourced strains that people use for "SIBO yogurt"? You clearly didn't read and understand the citation. That's really low-quality evidence. But sure, the potential benefits likely outweigh the risks for "L.Reuteri and L.Gasseri yogurt".

Of course. But a likely reason is that they're all using low-quality donors, so of course there's more heterogeneity. The wiki covers this: https://humanmicrobiome.info/fmt/#screening

Citation needed. This is not the simple task widely claimed. See the probiotic guide: https://humanmicrobiome.info/probiotic-guide/#fermenting-your-own-probiotics-at-home This is silly. No probiotic comes close to FMT. No. The onus of proof is on the person making the claims. Given that SIBO...

https://medicalxpress.com/news/2025-10-gluten-sensitivity-linked-gutbrain-interaction.html https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(25)01533-8/abstract

Comment from a previous thread: Another user mentioned that this should be common sense, which I agree with, and have been surprised at the amount of people arguing against it. Personally I would think it would also be common sense for the universities doing FMT studies and other microbiome...

https://www.frontiersin.org/articles/10.3389/fcimb.2019.00002/full An important paper to have submitted here. Unfortunately, the authors of this review didn't bother to attempt to find a super-donor for their FMT trial...