Health Nerd

You don't have a vitamin D deficiency. No one does. At least, that's according to the Endocrine Society guidelines. My new piece: gidmk.medium.com/theres-no-such…

Can kimchi rid you of microplastics? The story of - I kid you not - a shadowy government department that is trying to covertly get you to buy more kimchi. @gidmk/can-kimchi-rid-you-of-microplastics-c133fbfc0862" target="_blank" rel="nofollow noopener">medium.com/@gidmk/can-kim…

Does complementary and alternative medicine kill people with cancer? My new piece gidmk.medium.com/does-complemen…

Il y a deux ans maintenant, suite à la sortie de notre article (link.springer.com/article/10.118…) et malgré les prédictions de "c'est la fin pour vous", @ScienceMagazine démontrait l'ensemble des problèmes institutionnels et de recherche de @IHU_Marseille (science.org/content/articl…) notamment sur la gestion terrible et les SLAPP lawsuits de @raoult_didier pour faire taire les critiques scientifiques via l'argent publique français. L'article ne mentionne pas tous ceux qui ont participé à ce travail de titan pour dénoncer les fraudes de @IHU_Marseille et qui pourtant ont eu un role instrumental: @Sonic_urticant @AlexSamTG @GidMK @fluidloading @OlivierHertel @TroncheBiais @barriere_dr @EricBillyFR @saada_vsaada @DgCostagliola K. Lacombe @hervemaison et tant d'autres. Malgré déjà de nombreuses enquêtes en cours pour des recherches illégales, le gouvernement français a été bien trop passif sur ce sujet. @EmmanuelMacron @Senat @sup_recherche @Sante_Gouv @stephanie_rist @yannickneuder qu'attendez-vous? Le plus grand scandale de la recherche française se déroule sous vos yeux depuis des années. Voulez-vous vraiment être ceux qui n'ont rien fait pour l'arrêter.

As The Guardian reports on Retsef Levi today, it is worth recalling that our preprint already documents why the Levi et al. paper raises serious concerns. Preprint: osf.io/preprints/osf/… Guardian Link: theguardian.com/us-news/2026/m… Poke @MicrobiomDigest @GidMK @PeterHotez

My new piece is on multivitamins and why they probably do nothing for biological aging despite the remarkable headlines medium.com/p/12407279ac6e

Final piece in my 4-part series on vitamin D supplementation and why there's probably no need for most people to be taking a supplement. medium.com/p/981078dfe547

Given all the renewed interest in glyphosate, I thought I'd repost my piece about the chemical and how we know it almost certainly does not cause cancer: gidmk.substack.com/p/glyphosate-p…

Are statins much less dangerous than we previously thought? What does this mean for other drugs? New piece out: gidmk.medium.com/the-truth-abou…

Some good news to start the year: COVID-19 has never been less of a problem than it is today. gidmk.medium.com/covid-19-has-n…

@ngoonee @ernamh That is incorrect, this is from a 2025 study not funded by industry. I discuss this in the piece.

@GidMK @ernamh very interesting so I went looking, this is from a 2014 study covering 12 weeks of weight loss. Funded by Coke and all participants were already previously drinking diet beverages rather than water (hence bigger behaviour change needed)

My favourite scientific finding in a very long time: Diet Coke is healthier than water. gidmk.medium.com/diet-coke-is-h…

The idea that sugar makes children hyperactive is a myth, epidemiologist Gideon Meyerowitz-Katz says. "We have known since the ’90s that if you give children sugar, or if you give them artificially sweetened candy, or if you give them nothing at all, it makes no difference to their levels of hyperactivity," he tells PBS News' Geoff Bennett. "Every parent I know is surprised when they hear that, but it's fairly extensively proven," he added. Meyerowitz-Katz, creator of the "Health Nerd" blog, spoke to @GeoffRBennett for PBS News' podcast, "Settle In." Watch the full episode here: to.pbs.org/3MydeVQ

The next part of my vitamin D series - who is recommended to take a supplement and does that evidence really hold up? medium.com/p/theres-no-su…

My new piece is on cocoa supplements and why chocolate probably isn't going to stop you aging. gidmk.medium.com/cocoa-suppleme…

Please follow and bookmark to see me and my guests Dr. Gideon Meyerowitz-Katz (@GidMK), Dr. Tyler Black (@tylerblack32) and Adam Zivo (@adamzivo) as we have a nuanced conversation from across the political divide on the evidence and politics around pediatric gender affirming care Episode to be released later today!

New piece looks at remarkably bad research integrity cases on hugely impactful studies where the journals took years to respond. This is bad, it's an ongoing problem, no one is trying to fix it. medium.com/p/848f97356d25

My new piece looks at headlines saying that peanuts are the key to longevity and why it's just bad science. Wherein I get to unironically use the term Big Nut. @gidmk/peanuts-probably-cant-slow-aging-80eeb42721ea" target="_blank" rel="nofollow noopener">medium.com/@gidmk/peanuts…

I've never written about pandemic origins, because as someone with no stake in the discussion I never really cared one way or the other. But since people being disastrously wrong, here's my opinion about why COVID-19 was almost certainly not a lab leak gidmk.medium.com/pandemic-revis…