DIRECTORY
Credentialed creators we trust.
Registered dietitians, doctors, and credentialed nutrition researchers who consistently cite primary literature. We use this list to source the practitioner videos and articles linked from our health-content hubs — and you can use it to find people worth following.
Dr Alan Flanagan
PhD Nutritional SciencesSurrey-PhD nutritional scientist who teaches research literacy publicly. Strong critic of weak nutrition science.
Dr Alex Wibberley
MBBS, A&E doctor (decade in emergency medicine)UK A&E doctor with strong primary-literature citation discipline. Synthesises emerging research on microplastics, PFAS, and metabolic disease for general audiences. His 2026 microplastics + PFAS summary directly informed leastprocessed.com's cross-vertical plastic-packaging scoring detraction.
Dr Andy Galpin
PhD Human BioenergeticsExercise physiology PhD with research publications in muscle bioenergetics. Citation-heavy public communication.
Chris Tuttle
Registered Dietitian, MS Nutrition, Retired IFBB Pro BodybuilderRegistered dietitian and retired IFBB pro focused on contest prep, sports performance, and bodybuilding coaching.
Dr. James T. C. Li
M.D., Ph.D., Board-certified in Allergy & Immunology, Board-certified in Internal MedicineMayo Clinic allergist-immunologist covering food allergy, asthma, and anaphylaxis.
Dr. Jen Gunter
MD, FRCS(C), FACOG, DABPM, ABPMR (pain)OB-GYN and pain-medicine physician who debunks women's-health misinformation with primary-source-heavy writing.
Examine.com
Independent nutrition research organization, Team includes PharmD, MD, RDN, RN, MS, MPH, and PhD-trained contributorsIndependent supplement and nutrition research database with strong primary-source citation discipline.
Dr Gemma Newman
MBBS, GPUK GP, BMA-affiliated, plant-based focus. Cites primary literature consistently in popular content.
Kevin Bass
MS, former TTUHSC medical studentMS-trained biomedical writer and podcaster covering seed-oil myths, cholesterol, and science misinformation.
Dr. Layne Norton
PhD, Nutritional Sciences, BS, BiochemistrySports-nutrition researcher and coach focused on protein, body composition, and research literacy.
Dr Michael Mosley — in memoriam
MBBS, BBC science presenter (1957–2024)Pioneering UK science communicator who made 'ultra-processed food' a household term. MBBS-trained, decades of BBC documentaries based on primary literature, did self-experimentation responsibly with controls. Listed in memoriam — an inspiration for the editorial mission of leastprocessed.com.
Dr. Peter Attia
MDPhysician focused on longevity, metabolic health, exercise, and nutrition.
Rhiannon Lambert
RNutr (Registered Nutritionist), MSc NutritionRegistered Nutritionist (RNutr — UK regulated), private clinic, podcast hosts academic guests, BBC Food contributor.
Dr. Rhonda Patrick
PhD Biomedical Science, Postdoctoral fellowship in Nutritional Biochemistry, Associate Scientist, Fatty Acid Research InstituteBiomedical scientist behind FoundMyFitness; longevity and nutrition educator with citation-heavy public content.
Stephan J. Guyenet
PhD, Neuroscience, BS, BiochemistryObesity researcher and science communicator focused on appetite, overeating, and body-weight regulation.
Dr Tara Swart
PhD Neuroscience, MDMIT senior lecturer, MD + PhD neuroscience, author of 'The Source'. Brain-nutrition focus with academic backing.
Prof. Tim Spector
MD, FRCP, FMedSci, Professor of Genetic Epidemiology, King's College London, Honorary Consultant Physician, Guy's and St Thomas' NHS Foundation TrustKing's College London epidemiologist focused on the gut microbiome, personalized nutrition, and twin-cohort research.