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Am I still lactose tolerant? - Lactose Gene Therapy Update

10 videos recommended on HN
YouTube
3 HN users recommended this explainer3 months2020–2026 score 3.5
Years with an HN recommendation, 2007–2026

Pointed to as a striking example of DIY biology and self-experimentation with gene therapy.

The Thought Emporium's update on the home-brewed gene therapy he took to cure his lactose intolerance. It reports how the effect held up over two years and what future versions might look like.

“His YouTube channel The Thought Emporium, is amazing.” (HN, 2021)

1 strong recommendations · 2 recommendations · 6 citations · 1 jokes · Explainers · partly dated

10 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@stuntkite Jun 2021 Strongly recommends
on HN thread CRISPR gene-editing breakthrough opens door to treating broad array of diseases
Read more
His YouTube channel The Thought Emporium, is amazing. He just moved into a new lab and I really appreciate what he’s working on and how he communicates it. The robot painting fluorescent proteins is neat and recently he dropped a video demonstrating his adventures making synthetic opal. Apparently the edit made him totally lactose tolerant for over a year and now he has very mild lactose intolerance. He says he hasn’t redosed because he wants to improve the plasmid (I think that’s the right term, BUGFIX probably isn’t right) before he takes another run at it. Here’s his update video from last year on that endeavor. [this video]
Update on lactose tolerance gene edit results.
@freezing_coffee Jul 2020 Recommends
on HN thread The Thought Emporium
Have been a patron for some time, and discovered his channel with his lactose gene therapy video - to which he recently posted an update: [this video] . Great addition to scientific youtube.
Update on DIY lactose gene therapy.

Citations, criticism and jokes

@haxiomic Mar 2023 Cites it
on HN thread
Here’s someone who orders parts from the internet to design a custom virus that genetically modifies his own cells to cure his lactose intolerance [this video] Pretty cool for sure and a great use of the technology. The reason more of us don’t do this is because we lack the knowledge of biology to understand what we’re doing That will soon change.
Self-designed virus to cure lactose intolerance.
@ben_w Jul 2024 Cites it
on HN thread One-dose nasal spray clears toxic Alzheimer's proteins to improve memory
In general, if you want to bio-hack your own body, you're allowed, nobody will stop you. e.g. [this video] (even going past the first treatment he did on himself, to the updated version that's not yet human-rated, it's the creator going "please don't" rather than anything enforced). The health and safety concerns about stuff like this are mostly about other people getting hurt.
Example of self-experimentation with gene therapy.
@dlcarrier Dec 2025 Cites it
on HN thread Scientists Edited Genes Inside a Living Person for First Time, Saved His Life
There was a guy on YouTube who genetically engineered himself to gain lactose tolerance. ( [link] ) It lasted for around a year and a half ( [this video] ) before the effect mostly wore off. He took it orally, so it only affected his intestinal lining, and I presume it didn't effect enough stem cells to get a permanent effect, but it would still be usable as something taken annually, which is still far less often than any medication.
Effect lasted about a year and a half.

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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