Assoc Prof Nutrition & Epidemiology; Director & Co-founder EvidenceBasedNutrition.org; Middlepath 🥑cate; Promotion of fully-informed, shared decision-making

Joined March 2019
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Bradley Johnston, PhD retweeted
OpenAI Proposes “Right to AI” Researchers from OpenAI have put forward an industrial policy for artificial intelligence and it’s quite a read. They propose a legally recognised “Right to AI”, meaning broad public access to powerful systems, backed by government-funded compute resources so researchers, startups, and public institutions can run models themselves, rather than rely on a few companies. To make this reality, they want to see an expansion of electricity supply for data centres by fast-tracking nuclear and renewables. They also suggest a national wealth fund that captures a share of AI-driven profits and redistributes it to citizens, alongside taxes or levies on highly automated systems, effectively a “robot tax”. Of course none of that has any chance of happening, but OpenAI can now claim they care about the common man.
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Bradley Johnston, PhD retweeted
Yesterday in @AnnalsofIM, a new risk-stratified analysis found that different people get different benefits from limiting #SaturateFats. Cue the all-or-nothing #FalseDichotomies and another painful assault on the nuance of nutrition science. conscienhealth.org/2025/12/n…
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Bradley Johnston, PhD retweeted
Actualización guías 2025 ESC/EAS para el manejo de la dislipidemia. Altamente recomendadas ✅ Acceso gratuito: doi.org/10.1093/eurheartj/eh…
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Bradley Johnston, PhD retweeted
#RealWorldData advocates facing challenges addressing sources of bias suggest causal modelling as a solution. Doesn’t work. Comparison of 19 modelling studies with #RCTs showed 42% differed in direction and 47% of confidence intervals didn’t include RCT estimate. pubmed.ncbi.nlm.nih.gov/3170…
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‘We would want our students to excel at writing well-crafted prompts. But one cannot learn to ask good questions, without first submitting to the cloister discipline…, acquiring the skills that can nowadays be acquired only in strict seclusion from AI’ thetimes.com/comment/columni…
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Congrats Dr. Ruth Ghosh! PhD successfully defended! Ruth led very impt work to document & promote Evidence-Based Practice competencies in NUTR profession; work will hopefully inform ACEND 2027 k/crdns! shorturl.at/7Z6pu @aglifesciences @TAMUnutrition @nirjharRuth

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Congrats Dr. Ruth Ghosh! PhD successfully defended! Ruth led very impt work to document & promote Evidence-Based Practice competencies in NUTR profession; work will hopefully inform ACEND 2027 k/crdns! shorturl.at/7Z6 @aglifesciences @TAMUnutrition @nirjharRuth @GuyattGH
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Bradley Johnston, PhD retweeted
Impressive new Canadian #pediatric #obesity #guidelines are out today. The authors grounded them in the best science and crafted them with values of children and families at the center. What's missing? Resources to make them real. HT: @ObesityCan conscienhealth.org/2025/04/n…
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Bradley Johnston, PhD retweeted
Watch the Pennington Biomedical space for new insights on childhood obesity coming from our Implementation Science and Childhood Obesity Symposium. Renowned scientists from the US and Canada are collaborating on a consensus paper to address the current landscape, scalable solutions, and strategies for implementing evidence-based interventions to combat childhood obesity. Stay tuned for groundbreaking insights into this pressing issue. #ChildhoodObesity #ImplementationScience #PenningtonBiomedical
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Bradley Johnston, PhD retweeted
22 Mar 2025
Have the benefits of statins been overstated? racgp.org.au/newsgp/clinical… via @pbyrne82
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Like most allied health professions, RDs report not having had enough training in evidence-based practice (and most want more training). Lots of room for uplifting EBP, starting with crdns and krdns (which drive national examinations)! See Table 1: pubmed.ncbi.nlm.nih.gov/3815…
Cosign for dietetics. It's gotten out of control in the field - more enthusiasm for flipping evidence-based practice on its head to feel like a naturopathic prescriber with supplements than there is for rigor & excellence in dietetics.
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Bradley Johnston, PhD retweeted
Attend the Core #GRADE Workshop, led by me and my world-renowned colleagues from @HEI_McMaster. 📅 May 27-29, 2025 📍McMaster University 🐦 Early bird deadline ends March 14 (save $300) 🎓 Student registration option (save $1,100) 🔗 hei.healthsci.mcmaster.ca/ev…

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Bradley Johnston, PhD retweeted
19 Feb 2025
📢 Deadline Extended to 9 March! 📢 Need more time to finish your abstract for #GIN2025? You got it! 🎙️ The submission deadline has been extended until 9 March—giving you the chance to showcase your research on a global stage! 🌍✨ Find out more here ➡️ g-i-n.net/gin-conference-202…
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We need evidence-based ‘research’, where high quality, original, up to date systematic reviews and guidelines identify the gaps, and drive much needed clinical nutrition trials. And the trials need to measure outcomes that matter to patients and the public
It is bizarre living in the Bay Area, being around folks so interested in nutrition/biohacking, yet I go to work daily knowing that there is about zero local supported infrastructure left to run a clinical trial on nutrition/supplements/general non-pharmaceutical interventions
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Bradley Johnston, PhD retweeted
Thanks, Arun! Here’s the link to the California Executive Order directing state agencies to investigate health risks associated with UPF, synthetic food dyes, and other additives, and to recommend public actions. Highlighted text in the figure below gov.ca.gov/wp-content/upload…
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Bradley Johnston, PhD retweeted
Amazing to watch every outlet attribute these findings to UPFs and seed oils when the study doesn't even look at this. The assumption that eating more linoleic acid -> higher tissue arachidonic acid enrichment has fueled so many handwavey hypotheses despite metabolic regulation
10 Dec 2024
Chronic inflammation, such as propelled by high ultra-processed food intake, as an underpinning of colon cancer gut.bmj.com/content/early/20…
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As corresponding author, I agree about fallacies of low fat, low carb. Using such a lens allows for diet categorization, but grossly oversimplifies. The NMA of 14 diets shows best was Mediet (& lifestyle), which is not very restrictive. Needed: RCTs on whole food vs X vs Y diet
Diets focusing on restricting a particular macronutrient (i.e. low fat, low carbohydrate) largely perform the same at weight loss, blood pressure reduction. Until the evidence around benefits of different eating patterns is strengthened, we should instead focus on the core dimensions common among them: ⬆️ Non-starchy vegetables 🥕 , whole fruits🍓 , legumes🫘 , whole grains🥣 , nuts🥜 , seeds🌻 , low-fat dairy products 🥛 ⬇️ meats🍖 , sugar-sweetened beverages🥤 , refined grains🥐 , ultra-processed foods🍟 🍔 Need more guidance? Consult your friendly neighborhood dietician! Source: ADA Standards of Care in Diabetes 2024
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Bradley Johnston, PhD retweeted
8 Dec 2024
The good idea comes when one person feels comfortable enough to say something that might make them look stupid and their friend is open enough to recognize its potential.
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