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For reliable and inspiring fitness and nutrition information, the best social media accounts to follow include credentialed experts and highly respected trainers who provide evidence-based advice, practical workouts, and healthy recipes. Top Fitness Accounts Look for accounts that emphasize sustainable, science-backed practices over quick fixes. Account Name Platform(s) Focus Credentials/Notes Jeff Nippard YouTube, Instagram (@jeffnippard) Science-based strength training, hypertrophy, nutrition Has a Bachelor's degree in biochemistry and is a former natural bodybuilding champion. ATHLEAN-X (Jeff Cavaliere) YouTube Science-backed functional training, injury prevention Physical therapist known for professional, detailed workout technique breakdowns. Natacha Oceane YouTube, Instagram (@natacha.oceane) Evidence-first fitness, strength, conditioning A former biophysics student who uses data to test workout efficacy. Joe Wicks (The Body Coach) Instagram (@thebodycoach), YouTube Accessible HIIT workouts, simple, healthy meals Known for his motivational and family-friendly approach, especially during lockdowns. Yoga with Adriene (Adriene Mishler) YouTube, Instagram (@adrienelouise) Yoga, mindfulness, mobility Offers a wide variety of free, approachable yoga flows for all levels. Kayla Itsines Instagram (@kayla_itsines) Structured, efficient workouts (HIIT/strength) Creator of the popular Sweat app and the "Bikini Body Guide" workout style. Top Nutrition Accounts Prioritize Registered Dietitian Nutritionists (RDN) who provide practical, non-restrictive advice and debunk fads. Account Name Platform(s) Focus Credentials/Notes Dr. Layne Norton Instagram (@biolayne) Debunking pseudoscience, protein intake, body composition Holds a PhD in nutritional science and is a natural bodybuilder. Kylie Sakaida, RD Instagram (@nutritionbykylie) Easy, budget-friendly recipes and practical nutrition tips A registered dietitian known for her simple, appealing recipes and helpful advice. Ilana Muhlstein, RDN Instagram (@ilanamuhlsteinrd) Sustainable weight loss ("eat smarter, not less"), family nutrition Registered dietitian who shares a personal weight loss story and practical advice. The Gut Health Doctor (Dr. Megan Rossi) Instagram (@theguthealthdoctor) Gut health, plant-based eating, nutrition science A PhD-qualified registered dietitian and nutritionist focusing on the gut microbiome. Jamie Nadeau, RD Instagram (@the.balanced.nutritionist) Easy, healthy recipes and realistic, balanced eating tips A registered dietitian who promotes balance over restriction. Kids Eat in Color Instagram (@kids.eat.in.color) Picky eating strategies, childhood nutrition Combines child development psychology with nutrition science for parents. When choosing who to follow, look for individuals with relevant certifications (like RDN for nutrition or CSCS for strength coaching) and a history of promoting balanced, sustainable methods rather than extreme trends.