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 protein hype has gotten totally bonkers.
Marketing health halo. Ignore.
Marketing health halo. Ignore.
November 15, 2025 at 1:26 PM
The protein hype has gotten totally bonkers.
Marketing health halo. Ignore.
Marketing health halo. Ignore.
Leading the charge against health misinformation www.royalcollege.ca/en/news/lead...
Such a special event. Thank you, @royalcollege.bsky.social! 🙏
Such a special event. Thank you, @royalcollege.bsky.social! 🙏
November 10, 2025 at 9:55 PM
Leading the charge against health misinformation www.royalcollege.ca/en/news/lead...
Such a special event. Thank you, @royalcollege.bsky.social! 🙏
Such a special event. Thank you, @royalcollege.bsky.social! 🙏
This can't be said enough: MAGA media IS THE MAINSTREAM MEDIA!
It has been for years. The right dominates online influencers, engagement, news coverage, etc.
"Liberal MSM bias" a myth. Lies rule.
reuters.com/investigatio...
It has been for years. The right dominates online influencers, engagement, news coverage, etc.
"Liberal MSM bias" a myth. Lies rule.
reuters.com/investigatio...
November 10, 2025 at 9:00 PM
This can't be said enough: MAGA media IS THE MAINSTREAM MEDIA!
It has been for years. The right dominates online influencers, engagement, news coverage, etc.
"Liberal MSM bias" a myth. Lies rule.
reuters.com/investigatio...
It has been for years. The right dominates online influencers, engagement, news coverage, etc.
"Liberal MSM bias" a myth. Lies rule.
reuters.com/investigatio...
🚨Again, Tylenol ≠ > risk of autism, etc.
"Existing evidence does NOT clearly link maternal paracetamol use during pregnancy with autism or ADHD in offspring."
Study: Maternal paracetamol (acetaminophen) use during pregnancy and risk of autism www.bmj.com/content/391/...
"Existing evidence does NOT clearly link maternal paracetamol use during pregnancy with autism or ADHD in offspring."
Study: Maternal paracetamol (acetaminophen) use during pregnancy and risk of autism www.bmj.com/content/391/...
November 10, 2025 at 2:10 PM
🚨Again, Tylenol ≠ > risk of autism, etc.
"Existing evidence does NOT clearly link maternal paracetamol use during pregnancy with autism or ADHD in offspring."
Study: Maternal paracetamol (acetaminophen) use during pregnancy and risk of autism www.bmj.com/content/391/...
"Existing evidence does NOT clearly link maternal paracetamol use during pregnancy with autism or ADHD in offspring."
Study: Maternal paracetamol (acetaminophen) use during pregnancy and risk of autism www.bmj.com/content/391/...
The diff in tone of the responses to my manspreading post on X and Bluesky? So predictable.
To be clear: ZERO anatomical justification for manspreading!
Perhaps those who feel the need to manspread should request an accommodation from gov to help with this fragile condition?
To be clear: ZERO anatomical justification for manspreading!
Perhaps those who feel the need to manspread should request an accommodation from gov to help with this fragile condition?
November 9, 2025 at 8:15 PM
The diff in tone of the responses to my manspreading post on X and Bluesky? So predictable.
To be clear: ZERO anatomical justification for manspreading!
Perhaps those who feel the need to manspread should request an accommodation from gov to help with this fragile condition?
To be clear: ZERO anatomical justification for manspreading!
Perhaps those who feel the need to manspread should request an accommodation from gov to help with this fragile condition?
SEC football game yesterday! Fantastic experience! 🏈
Was a Manspreading Fest! And I got to sit next to the Manspreading Master! Lucky me.
Was a Manspreading Fest! And I got to sit next to the Manspreading Master! Lucky me.
November 9, 2025 at 3:05 PM
SEC football game yesterday! Fantastic experience! 🏈
Was a Manspreading Fest! And I got to sit next to the Manspreading Master! Lucky me.
Was a Manspreading Fest! And I got to sit next to the Manspreading Master! Lucky me.
Not long ago...
Chemtrails were a comical marker of being totally off the rails. Tinfoils hats et al.
Now? Example of the legitimization & embrace of hardcore bunk.
States ban them & RFK Jr wants a "task force"?
Dark Age 2.0
Chemtrails www.bmj.com/content/391/...
Chemtrails were a comical marker of being totally off the rails. Tinfoils hats et al.
Now? Example of the legitimization & embrace of hardcore bunk.
States ban them & RFK Jr wants a "task force"?
Dark Age 2.0
Chemtrails www.bmj.com/content/391/...
November 8, 2025 at 1:57 PM
Not long ago...
Chemtrails were a comical marker of being totally off the rails. Tinfoils hats et al.
Now? Example of the legitimization & embrace of hardcore bunk.
States ban them & RFK Jr wants a "task force"?
Dark Age 2.0
Chemtrails www.bmj.com/content/391/...
Chemtrails were a comical marker of being totally off the rails. Tinfoils hats et al.
Now? Example of the legitimization & embrace of hardcore bunk.
States ban them & RFK Jr wants a "task force"?
Dark Age 2.0
Chemtrails www.bmj.com/content/391/...
"... significant improvements in students’ ability to identify the importance of scientific consensus, credible sources, trust in scientific methodologies, & peer review."
"...improved students’ source evaluation & understanding of scientific consensus"
www.tandfonline.com/doi/full/10....
"...improved students’ source evaluation & understanding of scientific consensus"
www.tandfonline.com/doi/full/10....
November 4, 2025 at 2:54 PM
"... significant improvements in students’ ability to identify the importance of scientific consensus, credible sources, trust in scientific methodologies, & peer review."
"...improved students’ source evaluation & understanding of scientific consensus"
www.tandfonline.com/doi/full/10....
"...improved students’ source evaluation & understanding of scientific consensus"
www.tandfonline.com/doi/full/10....
Those marketing (totally bunk) "stem cell" supplements love lean on meaningless wellness-woo phrases, like natural, GMO-free, pure, organic, toxin-free...
Science-y nonsense + wellness nonsense = BS Supergroup!
Our study: www.cell.com/stem-cell-re... cc @stemcellnetwork.ca @isscr.org
Science-y nonsense + wellness nonsense = BS Supergroup!
Our study: www.cell.com/stem-cell-re... cc @stemcellnetwork.ca @isscr.org
November 2, 2025 at 8:36 PM
Those marketing (totally bunk) "stem cell" supplements love lean on meaningless wellness-woo phrases, like natural, GMO-free, pure, organic, toxin-free...
Science-y nonsense + wellness nonsense = BS Supergroup!
Our study: www.cell.com/stem-cell-re... cc @stemcellnetwork.ca @isscr.org
Science-y nonsense + wellness nonsense = BS Supergroup!
Our study: www.cell.com/stem-cell-re... cc @stemcellnetwork.ca @isscr.org
October 31, 2025 at 6:03 PM
Privileged to become an Honorary Fellow of the Royal College of Physicians and Surgeons of Canada (@royalcollege.bsky.social)
Really special day at @icreconf.bsky.social. Tough & chaotic times for biomedicine. Great to see this community – especially the brilliant trainees – rise to the challenge.🙏
Really special day at @icreconf.bsky.social. Tough & chaotic times for biomedicine. Great to see this community – especially the brilliant trainees – rise to the challenge.🙏
October 31, 2025 at 3:20 PM
Privileged to become an Honorary Fellow of the Royal College of Physicians and Surgeons of Canada (@royalcollege.bsky.social)
Really special day at @icreconf.bsky.social. Tough & chaotic times for biomedicine. Great to see this community – especially the brilliant trainees – rise to the challenge.🙏
Really special day at @icreconf.bsky.social. Tough & chaotic times for biomedicine. Great to see this community – especially the brilliant trainees – rise to the challenge.🙏
The power of lies.
The power of doubtmongering.
Misinformation kills.
The decrease in confidence in the (much researched, safe & tremendously effective) MMR vaccine...?👇
www.annenbergpublicpolicycenter.org/public-not-h... via @asc.upenn.edu
The power of doubtmongering.
Misinformation kills.
The decrease in confidence in the (much researched, safe & tremendously effective) MMR vaccine...?👇
www.annenbergpublicpolicycenter.org/public-not-h... via @asc.upenn.edu
October 30, 2025 at 4:13 PM
The power of lies.
The power of doubtmongering.
Misinformation kills.
The decrease in confidence in the (much researched, safe & tremendously effective) MMR vaccine...?👇
www.annenbergpublicpolicycenter.org/public-not-h... via @asc.upenn.edu
The power of doubtmongering.
Misinformation kills.
The decrease in confidence in the (much researched, safe & tremendously effective) MMR vaccine...?👇
www.annenbergpublicpolicycenter.org/public-not-h... via @asc.upenn.edu
The power of lies.
The power of doubtmongering.
Misinformation kills.
The decrease in confidence in the (much researched safe & tremendously effective) MMR vaccine due to spread of...?👇
www.annenbergpublicpolicycenter.org/public-not-h... via @asc.upenn.edu
The power of doubtmongering.
Misinformation kills.
The decrease in confidence in the (much researched safe & tremendously effective) MMR vaccine due to spread of...?👇
www.annenbergpublicpolicycenter.org/public-not-h... via @asc.upenn.edu
October 30, 2025 at 4:10 PM
The power of lies.
The power of doubtmongering.
Misinformation kills.
The decrease in confidence in the (much researched safe & tremendously effective) MMR vaccine due to spread of...?👇
www.annenbergpublicpolicycenter.org/public-not-h... via @asc.upenn.edu
The power of doubtmongering.
Misinformation kills.
The decrease in confidence in the (much researched safe & tremendously effective) MMR vaccine due to spread of...?👇
www.annenbergpublicpolicycenter.org/public-not-h... via @asc.upenn.edu
Largest study of its kind shows AI assistants misrepresent news content 45% of the time www.bbc.com/mediacentre/...
The AI failings "are systemic, cross-border, and multilingual, and we believe this endangers public trust."
The AI failings "are systemic, cross-border, and multilingual, and we believe this endangers public trust."
October 30, 2025 at 3:32 PM
Largest study of its kind shows AI assistants misrepresent news content 45% of the time www.bbc.com/mediacentre/...
The AI failings "are systemic, cross-border, and multilingual, and we believe this endangers public trust."
The AI failings "are systemic, cross-border, and multilingual, and we believe this endangers public trust."
Required by the Commandments of Parental Pride to share...
October 30, 2025 at 12:04 PM
Required by the Commandments of Parental Pride to share...
Such an honour to speak at the The Canadian Association of Nurses in Oncology conference in beautiful Banff. Amazing community doing incredible work! 🙏
📸 Reanne Booker
📸 Reanne Booker
October 29, 2025 at 11:13 PM
Such an honour to speak at the The Canadian Association of Nurses in Oncology conference in beautiful Banff. Amazing community doing incredible work! 🙏
📸 Reanne Booker
📸 Reanne Booker
Online health #misinformation almost the norm!
Watch for red flags, like use of anecdotes, "secret knowledge" BS, & "scienceploitation" (sciencey word salads!). 🚩
What to believe and what not about health information on your phone: www.ctvnews.ca/edmonton/art...
Watch for red flags, like use of anecdotes, "secret knowledge" BS, & "scienceploitation" (sciencey word salads!). 🚩
What to believe and what not about health information on your phone: www.ctvnews.ca/edmonton/art...
October 28, 2025 at 8:29 PM
Online health #misinformation almost the norm!
Watch for red flags, like use of anecdotes, "secret knowledge" BS, & "scienceploitation" (sciencey word salads!). 🚩
What to believe and what not about health information on your phone: www.ctvnews.ca/edmonton/art...
Watch for red flags, like use of anecdotes, "secret knowledge" BS, & "scienceploitation" (sciencey word salads!). 🚩
What to believe and what not about health information on your phone: www.ctvnews.ca/edmonton/art...
Is the massive market for gluten-free products contributing to a nocebo effect? Likely.
New study finds:
- "fermentable carbohydrates & nocebo effects [not gluten] contribute considerably to symptom generation"
- "commercial & media influences" seem significant
www.thelancet.com/journals/lan...
New study finds:
- "fermentable carbohydrates & nocebo effects [not gluten] contribute considerably to symptom generation"
- "commercial & media influences" seem significant
www.thelancet.com/journals/lan...
October 28, 2025 at 8:01 PM
Is the massive market for gluten-free products contributing to a nocebo effect? Likely.
New study finds:
- "fermentable carbohydrates & nocebo effects [not gluten] contribute considerably to symptom generation"
- "commercial & media influences" seem significant
www.thelancet.com/journals/lan...
New study finds:
- "fermentable carbohydrates & nocebo effects [not gluten] contribute considerably to symptom generation"
- "commercial & media influences" seem significant
www.thelancet.com/journals/lan...
Canada nearly 60 points more popular than Trump among... Americans!
Thank you! ❤️
Thank you! ❤️
October 27, 2025 at 10:13 PM
Canada nearly 60 points more popular than Trump among... Americans!
Thank you! ❤️
Thank you! ❤️
Education KEY in fight against bunk! 💪
Study: Countering #Misinformation Early.
"...respondents were significantly better at discerning true from false information, altered their health preferences, relied more on science, & reduced their dependence on unreliable news..."
And effects persisted.
Study: Countering #Misinformation Early.
"...respondents were significantly better at discerning true from false information, altered their health preferences, relied more on science, & reduced their dependence on unreliable news..."
And effects persisted.
October 27, 2025 at 2:25 PM
Education KEY in fight against bunk! 💪
Study: Countering #Misinformation Early.
"...respondents were significantly better at discerning true from false information, altered their health preferences, relied more on science, & reduced their dependence on unreliable news..."
And effects persisted.
Study: Countering #Misinformation Early.
"...respondents were significantly better at discerning true from false information, altered their health preferences, relied more on science, & reduced their dependence on unreliable news..."
And effects persisted.
🚨Complete BS.
And completely bonkers.
WTF is happening?
And completely bonkers.
WTF is happening?
October 27, 2025 at 2:01 AM
🚨Complete BS.
And completely bonkers.
WTF is happening?
And completely bonkers.
WTF is happening?
Rodgers — a maddening misinformation meister — is so insufferable that I find it hard to watch SNF!
I know he’s just an arrogant Dunning Kruger fueled jock. But, for me, he kinda represents our society’s celebration of ignorance.
I know he’s just an arrogant Dunning Kruger fueled jock. But, for me, he kinda represents our society’s celebration of ignorance.
October 27, 2025 at 1:57 AM
Rodgers — a maddening misinformation meister — is so insufferable that I find it hard to watch SNF!
I know he’s just an arrogant Dunning Kruger fueled jock. But, for me, he kinda represents our society’s celebration of ignorance.
I know he’s just an arrogant Dunning Kruger fueled jock. But, for me, he kinda represents our society’s celebration of ignorance.
Great takedown of harmful #misinformation about cancer & autism by CBC Marketplace
They analyzed "200 of TikTok’s most popular health videos & uncovers a troubling trend: misinformation is not only widespread, it’s thriving."
Honoured to help. Investigating Dr. TikTok www.cbc.ca/player/play/...
They analyzed "200 of TikTok’s most popular health videos & uncovers a troubling trend: misinformation is not only widespread, it’s thriving."
Honoured to help. Investigating Dr. TikTok www.cbc.ca/player/play/...
October 26, 2025 at 3:09 PM
Great takedown of harmful #misinformation about cancer & autism by CBC Marketplace
They analyzed "200 of TikTok’s most popular health videos & uncovers a troubling trend: misinformation is not only widespread, it’s thriving."
Honoured to help. Investigating Dr. TikTok www.cbc.ca/player/play/...
They analyzed "200 of TikTok’s most popular health videos & uncovers a troubling trend: misinformation is not only widespread, it’s thriving."
Honoured to help. Investigating Dr. TikTok www.cbc.ca/player/play/...
Writing a piece on how PROTEIN latest nutrition fad "health halo."
Search trends demos increasing interest, especially in January (we humans hilariously predictable).
Reality: most already get enough (yes, some pops need more), excess not better, mostly just marketing...
Search trends demos increasing interest, especially in January (we humans hilariously predictable).
Reality: most already get enough (yes, some pops need more), excess not better, mostly just marketing...
October 25, 2025 at 4:11 PM
Writing a piece on how PROTEIN latest nutrition fad "health halo."
Search trends demos increasing interest, especially in January (we humans hilariously predictable).
Reality: most already get enough (yes, some pops need more), excess not better, mostly just marketing...
Search trends demos increasing interest, especially in January (we humans hilariously predictable).
Reality: most already get enough (yes, some pops need more), excess not better, mostly just marketing...
This kind of doubtmongering – and total BS – cancer advice is everywhere. So harmful. So exploitive.
When you see it, correct it! 💪 #ScienceMatters.
When you see it, correct it! 💪 #ScienceMatters.
October 24, 2025 at 6:10 PM
This kind of doubtmongering – and total BS – cancer advice is everywhere. So harmful. So exploitive.
When you see it, correct it! 💪 #ScienceMatters.
When you see it, correct it! 💪 #ScienceMatters.