Bradley Johnston, PhD
@methodsnerd
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Assoc Prof Nutrition & Epidemiology; Director & Co-founder https://t.co/8RfJgB0hUt; Middlepath 🥑cate; Promotion of fully-informed, shared decision-making
Texas A&M University
Joined March 2019
State of the art CPGs on pediatric obesity mgmt now published THX to the labor & inputs >50 collaborators incl those with lived obesity exper, students, faculty & @ObesityCan. @ObesitySociety @ECOGobesity @ConscienHealth
cmaj.ca
Background: Obesity is a complex, chronic, stigmatized disease whereby abnormal or excess body fat may impair health or increase the risk of medical complications, and can reduce quality of life and...
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Confusing Opinions with Evidence Yields Scientific Puffery - @ConscienHealth
conscienhealth.org
Scientific puffery can result from blurring the distinction between expert opinion and evidence-based guidance.
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Actualización guías 2025 ESC/EAS para el manejo de la dislipidemia. Altamente recomendadas ✅ Acceso gratuito: https://t.co/VcwKSMoeCN
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#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
Nonrandomized studies using causal modeling with MSM may give different answers than RCTs. Caution is still required when nonrandomized "real world" evidence is used for healthcare decisions.
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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
ChatGPT and its like have swept through academia, changing how students work, write and think. The bots are here to stay, so we need to reimagine learning
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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! https://t.co/hi6i1p8yvi
@aglifesciences @TAMUnutrition @nirjharRuth
pubmed.ncbi.nlm.nih.gov
The overall quality of study reports was poor, and the questionnaires were predominantly self-perceived, as opposed to objective assessments. No studies reported on competencies in interpreting...
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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! https://t.co/PfXZSuPwZQ
@aglifesciences @TAMUnutrition @nirjharRuth @GuyattGH
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The highly anticipated Canadian #pediatric #obesity clinical practice guidelines are here! Congratulations on this huge accomplishment. @ObesityCan
@ObesitySociety
@EASOobesity
@WorldObesity
@OMAsocial
@ASMBS
@AmerAcadPeds
@ECOGobesity
https://t.co/0vxnXc6t1M
cmaj.ca
Background: Obesity is a complex, chronic, stigmatized disease whereby abnormal or excess body fat may impair health or increase the risk of medical complications, and can reduce quality of life and...
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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
https://t.co/bqkuskqKAi
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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
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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
The overall quality of study reports was poor, and the questionnaires were predominantly self-perceived, as opposed to objective assessments. No studies reported on competencies in interpreting...
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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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
27/05/2025 - 29/05/2025 @ All Day - Join world-renowned faculty from the Department of Health Research Methods, Evidence, and Impact (HEI) and the Department of Medicine for the Core GRADE Workshop,...
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📢 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 ➡️ https://t.co/tnBjCiHNbb
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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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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 https://t.co/O6fdZWcJZb
https://t.co/DtMpWeu74x The order is here ! @PhilBakerNZ @CMonteiro_USP @marionnestle @DoctorChrisVT
@NAPiIndia
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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
Chronic inflammation, such as propelled by high ultra-processed food intake, as an underpinning of colon cancer https://t.co/DCfKyRvqt6
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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
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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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What leads us to ignore experts isn't their knowledge. It's their arrogance. Evidence: Scientists are more credible when they admit what they don't know, acknowledge what they got wrong, and update their views. Trust is earned by expressing humility, not by asserting authority.
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