Timothy Caulfield
@caulfieldtim.bsky.social
Professor of health law and science policy, author, speaker, and commentator. #ScienceUpFirst
Linktree: https://linktr.ee/caulfieldtim
Linktree: https://linktr.ee/caulfieldtim
The longevity grift: sensible advice (long known & recommended) + lots of unproven BS (with a dash of manosphere arrogance).
Attia’s Ties to Epstein Spark a Backlash From Doctors www.nytimes.com/2026/02/10/w... cc @drjengunter.bsky.social
Attia’s Ties to Epstein Spark a Backlash From Doctors www.nytimes.com/2026/02/10/w... cc @drjengunter.bsky.social
Peter Attia’s Ties to Epstein Spark a Backlash From Doctors
www.nytimes.com
February 11, 2026 at 1:52 AM
The longevity grift: sensible advice (long known & recommended) + lots of unproven BS (with a dash of manosphere arrogance).
Attia’s Ties to Epstein Spark a Backlash From Doctors www.nytimes.com/2026/02/10/w... cc @drjengunter.bsky.social
Attia’s Ties to Epstein Spark a Backlash From Doctors www.nytimes.com/2026/02/10/w... cc @drjengunter.bsky.social
Holy cow (no pun intended) he's hard to listen to...
I'm kinda fascinated by his credibility collapse...
Does he really believe what he's saying? RFK Jr is, um, conceptually consistent?
Do people like Vinay ever go "wait, I'm a talking head on Megyn Kelly? What the hell happened to me?"
I'm kinda fascinated by his credibility collapse...
Does he really believe what he's saying? RFK Jr is, um, conceptually consistent?
Do people like Vinay ever go "wait, I'm a talking head on Megyn Kelly? What the hell happened to me?"
February 10, 2026 at 11:53 PM
Holy cow (no pun intended) he's hard to listen to...
I'm kinda fascinated by his credibility collapse...
Does he really believe what he's saying? RFK Jr is, um, conceptually consistent?
Do people like Vinay ever go "wait, I'm a talking head on Megyn Kelly? What the hell happened to me?"
I'm kinda fascinated by his credibility collapse...
Does he really believe what he's saying? RFK Jr is, um, conceptually consistent?
Do people like Vinay ever go "wait, I'm a talking head on Megyn Kelly? What the hell happened to me?"
My take: What Canadians should worry about from new vaccine recommendations in the U.S. youtu.be/w97LZfbEru0?...
Reality:
- Studies show public has less confidence in vaccines (thanks, RFK Jr and your misinformation minions!)
- But studies consistently show impressive safety profile!
#VaccinesWork
Reality:
- Studies show public has less confidence in vaccines (thanks, RFK Jr and your misinformation minions!)
- But studies consistently show impressive safety profile!
#VaccinesWork
What Canadians should worry about from new vaccine recommendations in the U.S.
YouTube video by CTV News
youtu.be
February 10, 2026 at 11:38 PM
My take: What Canadians should worry about from new vaccine recommendations in the U.S. youtu.be/w97LZfbEru0?...
Reality:
- Studies show public has less confidence in vaccines (thanks, RFK Jr and your misinformation minions!)
- But studies consistently show impressive safety profile!
#VaccinesWork
Reality:
- Studies show public has less confidence in vaccines (thanks, RFK Jr and your misinformation minions!)
- But studies consistently show impressive safety profile!
#VaccinesWork
Yet another bizarre and worrisome vaccine decision by RFK Jr's "health" gang...
FDA refuses to review Moderna’s influenza vaccine www.statnews.com/2026/02/10/f... @matthewherper.bsky.social via @statnews.com
FDA refuses to review Moderna’s influenza vaccine www.statnews.com/2026/02/10/f... @matthewherper.bsky.social via @statnews.com
FDA refuses to review Moderna’s influenza vaccine
FDA refuses to review Moderna’s influenza vaccine, which could raise concerns about the agency’s posture toward vaccines and drug approvals more generally.
www.statnews.com
February 10, 2026 at 11:19 PM
Yet another bizarre and worrisome vaccine decision by RFK Jr's "health" gang...
FDA refuses to review Moderna’s influenza vaccine www.statnews.com/2026/02/10/f... @matthewherper.bsky.social via @statnews.com
FDA refuses to review Moderna’s influenza vaccine www.statnews.com/2026/02/10/f... @matthewherper.bsky.social via @statnews.com
🚨 THIS is the impact of lies & doubtmongering. 🚨
Despite a GROWING body of evidence showing the safety of ALL these vaccines, more doubt safety.
via @kffhealthnews.org @kff.org cc @cmadocs.bsky.social @scienceupfirst.bsky.social @drjengunter.bsky.social
Despite a GROWING body of evidence showing the safety of ALL these vaccines, more doubt safety.
via @kffhealthnews.org @kff.org cc @cmadocs.bsky.social @scienceupfirst.bsky.social @drjengunter.bsky.social
February 10, 2026 at 8:34 PM
🚨 THIS is the impact of lies & doubtmongering. 🚨
Despite a GROWING body of evidence showing the safety of ALL these vaccines, more doubt safety.
via @kffhealthnews.org @kff.org cc @cmadocs.bsky.social @scienceupfirst.bsky.social @drjengunter.bsky.social
Despite a GROWING body of evidence showing the safety of ALL these vaccines, more doubt safety.
via @kffhealthnews.org @kff.org cc @cmadocs.bsky.social @scienceupfirst.bsky.social @drjengunter.bsky.social
Doctors warn against dangers of health misinformation from AI sources www.ctvnews.ca/health/artic... via @cmadocs.bsky.social cc @scienceupfirst.bsky.social
“It’s alarming because a lot of that information is misinformation, disinformation, and false information."
“It’s alarming because a lot of that information is misinformation, disinformation, and false information."
Doctors warn against dangers of health misinformation from AI sources
The Canadian Medical Association says doctors are worried that more of their patients are turning to artificial intelligence for health advice — and getting answers that put them in danger.
www.ctvnews.ca
February 10, 2026 at 6:09 PM
Doctors warn against dangers of health misinformation from AI sources www.ctvnews.ca/health/artic... via @cmadocs.bsky.social cc @scienceupfirst.bsky.social
“It’s alarming because a lot of that information is misinformation, disinformation, and false information."
“It’s alarming because a lot of that information is misinformation, disinformation, and false information."
Is "social" drinking good for health? It's complex.
Drinking Is a ‘Social Lubricant.’ That’s Not Always a Good Thing. www.nytimes.com/2026/02/10/h...
Dr. Oz “made it seem that alcohol is the cure to social problems and loneliness. But it’s also predictive of more problematic behavioral problems.”
Drinking Is a ‘Social Lubricant.’ That’s Not Always a Good Thing. www.nytimes.com/2026/02/10/h...
Dr. Oz “made it seem that alcohol is the cure to social problems and loneliness. But it’s also predictive of more problematic behavioral problems.”
Drinking Is a ‘Social Lubricant.’ That’s Not Always a Good Thing.
www.nytimes.com
February 10, 2026 at 5:46 PM
Is "social" drinking good for health? It's complex.
Drinking Is a ‘Social Lubricant.’ That’s Not Always a Good Thing. www.nytimes.com/2026/02/10/h...
Dr. Oz “made it seem that alcohol is the cure to social problems and loneliness. But it’s also predictive of more problematic behavioral problems.”
Drinking Is a ‘Social Lubricant.’ That’s Not Always a Good Thing. www.nytimes.com/2026/02/10/h...
Dr. Oz “made it seem that alcohol is the cure to social problems and loneliness. But it’s also predictive of more problematic behavioral problems.”
🚨 Canadians recognize that health misinformation does significant harm.
90% (!) believe the government has a responsibility address the issue!
via @cmadocs.bsky.social cc @scienceupfirst.bsky.social
90% (!) believe the government has a responsibility address the issue!
via @cmadocs.bsky.social cc @scienceupfirst.bsky.social
February 10, 2026 at 4:50 PM
🚨 Canadians recognize that health misinformation does significant harm.
90% (!) believe the government has a responsibility address the issue!
via @cmadocs.bsky.social cc @scienceupfirst.bsky.social
90% (!) believe the government has a responsibility address the issue!
via @cmadocs.bsky.social cc @scienceupfirst.bsky.social
Yes, yes, yes, yes, yes! And yes.
Science Communication Should Be a Core Competency in Medical Training www.medpagetoday.com/opinion/seco... by @drkatiesuleta.bsky.social @funsizeimmuninja.bsky.social
Science Communication Should Be a Core Competency in Medical Training www.medpagetoday.com/opinion/seco... by @drkatiesuleta.bsky.social @funsizeimmuninja.bsky.social
Opinion | Science Communication Should Be a Core Competency in Medical Training
We've seen how profoundly things unravel when communication breaks down
www.medpagetoday.com
February 10, 2026 at 4:06 PM
Yes, yes, yes, yes, yes! And yes.
Science Communication Should Be a Core Competency in Medical Training www.medpagetoday.com/opinion/seco... by @drkatiesuleta.bsky.social @funsizeimmuninja.bsky.social
Science Communication Should Be a Core Competency in Medical Training www.medpagetoday.com/opinion/seco... by @drkatiesuleta.bsky.social @funsizeimmuninja.bsky.social
Ivermectin = ideological flag.
Ugh.
National Cancer Institute studying ivermectin www.statnews.com/2026/02/10/i... via @statnews.com
“I am shocked and appalled." Taking funds from "promising research in order to do a preclinical study based on nonscientific ideas. It’s absurd.”
Ugh.
National Cancer Institute studying ivermectin www.statnews.com/2026/02/10/i... via @statnews.com
“I am shocked and appalled." Taking funds from "promising research in order to do a preclinical study based on nonscientific ideas. It’s absurd.”
National Cancer Institute studying ivermectin’s ‘ability to kill cancer cells,’ alarming career scientists
The National Cancer Institute is studying ivermectin as a potential cancer treatment, according to its top official, alarming career scientists.
www.statnews.com
February 10, 2026 at 3:34 PM
Ivermectin = ideological flag.
Ugh.
National Cancer Institute studying ivermectin www.statnews.com/2026/02/10/i... via @statnews.com
“I am shocked and appalled." Taking funds from "promising research in order to do a preclinical study based on nonscientific ideas. It’s absurd.”
Ugh.
National Cancer Institute studying ivermectin www.statnews.com/2026/02/10/i... via @statnews.com
“I am shocked and appalled." Taking funds from "promising research in order to do a preclinical study based on nonscientific ideas. It’s absurd.”
Colostrum Supplement Sales Are Booming, But the Science Is Thin www.bloomberg.com/news/article...
Celebs. Influencers. Iffy science. Classic supplement hype cycle.
Me: Immediate interest & lots of hype. But upon closer examination, "any positive effects 'become small or nonexistent.'"
Celebs. Influencers. Iffy science. Classic supplement hype cycle.
Me: Immediate interest & lots of hype. But upon closer examination, "any positive effects 'become small or nonexistent.'"
Colostrum Supplement Sales Are Booming, But the Science Is Thin
Celebrity endorsements have driven more than $22 million in US sales, a 3,000% increase from two years earlier.
www.bloomberg.com
February 10, 2026 at 3:07 PM
Colostrum Supplement Sales Are Booming, But the Science Is Thin www.bloomberg.com/news/article...
Celebs. Influencers. Iffy science. Classic supplement hype cycle.
Me: Immediate interest & lots of hype. But upon closer examination, "any positive effects 'become small or nonexistent.'"
Celebs. Influencers. Iffy science. Classic supplement hype cycle.
Me: Immediate interest & lots of hype. But upon closer examination, "any positive effects 'become small or nonexistent.'"
Despite all the noise, reality...👇
"Ongoing peer-reviewed evidence supports the safety & effectiveness of immunizations against Covid-19, RSV, & influenza...."
Updated Evidence for Covid-19, RSV, & Influenza Vaccines for 2026 www.nejm.org/doi/full/10....
Soon: on CTV Edmonton!
"Ongoing peer-reviewed evidence supports the safety & effectiveness of immunizations against Covid-19, RSV, & influenza...."
Updated Evidence for Covid-19, RSV, & Influenza Vaccines for 2026 www.nejm.org/doi/full/10....
Soon: on CTV Edmonton!
Updated Evidence for Covid-19, RSV, and Influenza Vaccines for 2025–2026 | NEJM
Changes in the vaccine advisory process in the United States have disrupted immunization guidance, which reinforces the need for independent evidence review to inform decisions regarding immunizati...
www.nejm.org
February 10, 2026 at 2:27 PM
Despite all the noise, reality...👇
"Ongoing peer-reviewed evidence supports the safety & effectiveness of immunizations against Covid-19, RSV, & influenza...."
Updated Evidence for Covid-19, RSV, & Influenza Vaccines for 2026 www.nejm.org/doi/full/10....
Soon: on CTV Edmonton!
"Ongoing peer-reviewed evidence supports the safety & effectiveness of immunizations against Covid-19, RSV, & influenza...."
Updated Evidence for Covid-19, RSV, & Influenza Vaccines for 2026 www.nejm.org/doi/full/10....
Soon: on CTV Edmonton!
For sure. Hence my #TeamConfirmationBias. Just having fun.
But these chocolate, blueberry, wine, etc, cohort studies always limited...
But these chocolate, blueberry, wine, etc, cohort studies always limited...
February 9, 2026 at 11:55 PM
For sure. Hence my #TeamConfirmationBias. Just having fun.
But these chocolate, blueberry, wine, etc, cohort studies always limited...
But these chocolate, blueberry, wine, etc, cohort studies always limited...
Great stuff! Thx to entire team! 🙏
February 9, 2026 at 11:50 PM
Great stuff! Thx to entire team! 🙏
2 to 3 Cups of Coffee a Day May Reduce Dementia Risk. But Not if It’s Decaf. www.nytimes.com/2026/02/09/h...
But there's a "limit to how much caffeine our bodies can metabolize." I find that limit, dammit! 💪
#TeamCoffee! #TeamConfirmationBias!
But there's a "limit to how much caffeine our bodies can metabolize." I find that limit, dammit! 💪
#TeamCoffee! #TeamConfirmationBias!
2 to 3 Cups of Coffee a Day May Reduce Dementia Risk. But Not if It’s Decaf.
www.nytimes.com
February 9, 2026 at 10:17 PM
2 to 3 Cups of Coffee a Day May Reduce Dementia Risk. But Not if It’s Decaf. www.nytimes.com/2026/02/09/h...
But there's a "limit to how much caffeine our bodies can metabolize." I find that limit, dammit! 💪
#TeamCoffee! #TeamConfirmationBias!
But there's a "limit to how much caffeine our bodies can metabolize." I find that limit, dammit! 💪
#TeamCoffee! #TeamConfirmationBias!
Very obviously. Liar gonna lie.
RFK Jr misled Senate during confirmation, Congress members and Hawaii governor say www.theguardian.com/us-news/2026...
RFK Jr misled Senate during confirmation, Congress members and Hawaii governor say www.theguardian.com/us-news/2026...
RFK Jr misled Senate during confirmation, Congress members and Hawaii governor say
Newly revealed emails undermine Kennedy’s testimony about 2019 Samoa trip ahead of deadly measles outbreak
www.theguardian.com
February 9, 2026 at 8:30 PM
Very obviously. Liar gonna lie.
RFK Jr misled Senate during confirmation, Congress members and Hawaii governor say www.theguardian.com/us-news/2026...
RFK Jr misled Senate during confirmation, Congress members and Hawaii governor say www.theguardian.com/us-news/2026...
My experiences with Deepak Chopra? Um, not great.
A few years back he spread nasty lies about me. Questioned my integrity. And sent his online trolls after me. Not fun.
A deliberate strategy to use his "spiritual" influence to silence a critic.
The worst.
Namaste.
www.cbc.ca/news/canada/...
A few years back he spread nasty lies about me. Questioned my integrity. And sent his online trolls after me. Not fun.
A deliberate strategy to use his "spiritual" influence to silence a critic.
The worst.
Namaste.
www.cbc.ca/news/canada/...
Deepak Chopra, Timothy Caulfield end Twitter feud | CBC News
Author Deepak Chopra and University of Alberta professor Timothy Caulfield spent many days butting heads on Twitter. But finally, there is a happy ending.
www.cbc.ca
February 9, 2026 at 7:05 PM
My experiences with Deepak Chopra? Um, not great.
A few years back he spread nasty lies about me. Questioned my integrity. And sent his online trolls after me. Not fun.
A deliberate strategy to use his "spiritual" influence to silence a critic.
The worst.
Namaste.
www.cbc.ca/news/canada/...
A few years back he spread nasty lies about me. Questioned my integrity. And sent his online trolls after me. Not fun.
A deliberate strategy to use his "spiritual" influence to silence a critic.
The worst.
Namaste.
www.cbc.ca/news/canada/...
Let's highlight the Deepak Chopra – an OG wellness grifter – Epstein connection.
Chopra had regular contact with Epstein, including offensive emails
www.yahoo.com/entertainmen...
Good reminder that pushing exploitive pseudoscience for profit requires a pretty f*cked up moral compass.
Chopra had regular contact with Epstein, including offensive emails
www.yahoo.com/entertainmen...
Good reminder that pushing exploitive pseudoscience for profit requires a pretty f*cked up moral compass.
'God Is A Construct, Cute Girls Are Real': Bestselling Spiritual Author Deepak Chopra's Emails To Epstein Revealed
Deepak Chopra has spent decades teaching millions of people how to transcend the material world. His 95 books promise spiritual enlightenment through meditation, higher consciousness, ... Read More
www.yahoo.com
February 9, 2026 at 6:23 PM
Let's highlight the Deepak Chopra – an OG wellness grifter – Epstein connection.
Chopra had regular contact with Epstein, including offensive emails
www.yahoo.com/entertainmen...
Good reminder that pushing exploitive pseudoscience for profit requires a pretty f*cked up moral compass.
Chopra had regular contact with Epstein, including offensive emails
www.yahoo.com/entertainmen...
Good reminder that pushing exploitive pseudoscience for profit requires a pretty f*cked up moral compass.
So much cortisol hype in wellness world... 👇
Do you need to control your cortisol? Probably not medicalxpress.com/news/2026-02...
"...no proven over-the-counter treatments for high or low cortisol..."
"A one-off cortisol blood test won't provide useful information for most people..."
Do you need to control your cortisol? Probably not medicalxpress.com/news/2026-02...
"...no proven over-the-counter treatments for high or low cortisol..."
"A one-off cortisol blood test won't provide useful information for most people..."
Do you need to control your cortisol? Probably not, doctors say
Cortisol, what is known as the stress hormone, is the talk of the internet. Wellness influencers warn about the various symptoms of chronically high cortisol: waking up at 3 a.m., swollen "cortisol fa...
medicalxpress.com
February 9, 2026 at 4:54 PM
So much cortisol hype in wellness world... 👇
Do you need to control your cortisol? Probably not medicalxpress.com/news/2026-02...
"...no proven over-the-counter treatments for high or low cortisol..."
"A one-off cortisol blood test won't provide useful information for most people..."
Do you need to control your cortisol? Probably not medicalxpress.com/news/2026-02...
"...no proven over-the-counter treatments for high or low cortisol..."
"A one-off cortisol blood test won't provide useful information for most people..."
Research reveals which popular generative AI chatbots lie www.rit.edu/news/researc...
"...LLM could not distinguish between its very own self-generated truths and lies all the time."
Can nudge to agree. This means "...LLMs can provide an echo chamber to persistent users when they press..."
"...LLM could not distinguish between its very own self-generated truths and lies all the time."
Can nudge to agree. This means "...LLMs can provide an echo chamber to persistent users when they press..."
Research reveals which popular generative AI chatbots lie
RIT and Georgia Tech artificial intelligence experts have developed a framework to test hallucinations on ChatGPT, Gemini, Grok, Claude, and DeepSeek.
www.rit.edu
February 9, 2026 at 4:33 PM
Research reveals which popular generative AI chatbots lie www.rit.edu/news/researc...
"...LLM could not distinguish between its very own self-generated truths and lies all the time."
Can nudge to agree. This means "...LLMs can provide an echo chamber to persistent users when they press..."
"...LLM could not distinguish between its very own self-generated truths and lies all the time."
Can nudge to agree. This means "...LLMs can provide an echo chamber to persistent users when they press..."
Allergy Misinformation Across Social Media Platforms www.sciencedirect.com/science/arti... by @sabivm.bsky.social et al.
"Allergy misinformation achieves high engagement with limited public correction..."
31%: natural cure promotion
24%: IgG testing endorsement
18%: medication fearmongering
"Allergy misinformation achieves high engagement with limited public correction..."
31%: natural cure promotion
24%: IgG testing endorsement
18%: medication fearmongering
February 9, 2026 at 4:06 PM
Allergy Misinformation Across Social Media Platforms www.sciencedirect.com/science/arti... by @sabivm.bsky.social et al.
"Allergy misinformation achieves high engagement with limited public correction..."
31%: natural cure promotion
24%: IgG testing endorsement
18%: medication fearmongering
"Allergy misinformation achieves high engagement with limited public correction..."
31%: natural cure promotion
24%: IgG testing endorsement
18%: medication fearmongering
The CLEAR and OBVIOUS inaugural winner?
RFK Jr! 🏆
So so so many harmful lies.
open.substack.com/pub/garyschw... by @garyschw.bsky.social
RFK Jr! 🏆
So so so many harmful lies.
open.substack.com/pub/garyschw... by @garyschw.bsky.social
Introducing the “Health News Pinocchio Award”
For the most egregious recent lie about health care that caught my eye.
open.substack.com
February 9, 2026 at 3:15 PM
The CLEAR and OBVIOUS inaugural winner?
RFK Jr! 🏆
So so so many harmful lies.
open.substack.com/pub/garyschw... by @garyschw.bsky.social
RFK Jr! 🏆
So so so many harmful lies.
open.substack.com/pub/garyschw... by @garyschw.bsky.social
🚨 Key.
Peter Attia, the Epstein Files and the Lie Propping Up Big Wellness www.nytimes.com/2026/02/07/o...
"Many health influencers have ties to supplement companies, make money from lawsuits against vaccine companies or receive financial backing from politically powerful billionaires..."
Peter Attia, the Epstein Files and the Lie Propping Up Big Wellness www.nytimes.com/2026/02/07/o...
"Many health influencers have ties to supplement companies, make money from lawsuits against vaccine companies or receive financial backing from politically powerful billionaires..."
Opinion | Peter Attia, the Epstein Files and the Lie Propping Up Big Wellness
www.nytimes.com
February 7, 2026 at 9:16 PM
🚨 Key.
Peter Attia, the Epstein Files and the Lie Propping Up Big Wellness www.nytimes.com/2026/02/07/o...
"Many health influencers have ties to supplement companies, make money from lawsuits against vaccine companies or receive financial backing from politically powerful billionaires..."
Peter Attia, the Epstein Files and the Lie Propping Up Big Wellness www.nytimes.com/2026/02/07/o...
"Many health influencers have ties to supplement companies, make money from lawsuits against vaccine companies or receive financial backing from politically powerful billionaires..."