Diet & Nutrition

Reyna Franco, RDN, is a New York City–based dietitian-nutritionist, certified specialist in sports dietetics, and certified personal trainer. She is a diplomate of the American College of Lifestyle Medicine and has a master's degree in nutrition and exercise physiology from Columbia University.

In her private practice, she provides medical nutrition therapy for weight management, sports nutrition, diabetes, cardiac disease, renal disease, gastrointestinal disorders, cancer, food allergies, eating disorders, and childhood nutrition. To serve her diverse patients, she demonstrates cultural sensitivity and knowledge of customary food practices. She applies the tenets of lifestyle medicine to reduce the risk of chronic disease and improve health outcomes for her patients.

Franco is also a corporate wellness consultant who conducts wellness counseling and seminars for organizations of every size. She taught sports nutrition to medical students at the Albert Einstein College of Medicine, taught life cycle nutrition and nutrition counseling to undergraduate students at LaGuardia Community College, and precepts nutrition students and interns. She created the sports nutrition rotation for the New York Distance Dietetic Internship program.

She is the chair of the American College of Lifestyle Medicine's Registered Dietitian-Nutritionist Member Interest Group. She is also the treasurer and secretary of the New York State Academy of Nutrition and Dietetics, having previously served in many other leadership roles for the organization, including as past president, awards committee chair, and grant committee chair, among others. She is active in the local Greater New York Dietetic Association and Long Island Academy of Nutrition and Dietetics, too.

Justin Laube, MD, is a board-certified integrative and internal medicine physician, a teacher, and a consultant with extensive expertise in integrative health, medical education, and trauma healing.

He graduated with a bachelor's in biology from the University of Wisconsin and a medical degree from the University of Minnesota Medical School. During medical school, he completed a graduate certificate in integrative therapies and healing practices through the Earl E. Bakken Center for Spirituality & Healing. He completed his three-year residency training in internal medicine at the University of California in Los Angeles on the primary care track and a two-year fellowship in integrative East-West primary care at the UCLA Health Center for East-West Medicine.

He is currently taking a multiyear personal and professional sabbatical to explore the relationship between childhood trauma, disease, and the processes of healing. He is developing a clinical practice for patients with complex trauma, as well as for others going through significant life transitions. He is working on a book distilling the insights from his sabbatical, teaching, and leading retreats on trauma, integrative health, mindfulness, and well-being for health professionals, students, and the community.

Previously, Dr. Laube was an assistant clinical professor at the UCLA Health Center for East-West Medicine and the David Geffen School of Medicine at UCLA, where he provided primary care and integrative East-West medical consultations. As part of the faculty, he completed a medical education fellowship and received a certificate in innovation in curriculum design and evaluation. He was the fellowship director at the Center for East-West Medicine and led courses for physician fellows, residents, and medical students.

Karen E. Todd, RD, CSCS, EP-C, CISSN, is a registered dietitian and strength and conditioning specialist committed to evidence-based education in lifelong wellness, sports nutrition, and healthy aging.

With more than 30 years of experience in nutritional education, dietary supplements, functional foods, and exercise performance, she specializes in nutrition and exercise performance communications, providing expert insights to both media and consumers. She serves as a nutrition communicator, speaker, spokesperson, and brand consultant, and currently works in nutraceutical ingredient innovation and development, focusing on how nutrients and ingredients support health, performance, and wellness across the lifespan.

Karen also runs TheSupplementDietitian.com, a free online resource dedicated to helping consumers navigate the world of dietary supplements. The site provides science-based education on how supplements are regulated, how to identify safe and effective products, and how to fill nutritional gaps when diet alone isn’t enough.

Her experience spans clinical nutrition, exercise performance, and product development, giving her a broad perspective on the scientific, practical, and regulatory considerations that shape the supplement and functional food industries. Karen is a contributing guest blogger for Psychology Today’s “Feed Your Brain” column, a scientific advisory board member for Agro Food Industry Hi Tech, and a board member for Council for Responsible Nutrition, a leading professional organization in the nutraceutical space.

She is widely recognized for her ability to translate complex research into clear, evidence-based insights that help students, practitioners, and consumers make informed decisions about nutrition and supplementation.

Kara Andrew, RDN, LDN, is the director of health promotion for Memorial Hospital in Carthage, Illinois. She is also licensed as an exercise physiologist and certified in lifestyle medicine by the American College of Lifestyle Medicine. Her experience includes corporate wellness, teaching for the American College of Sports Medicine, sports nutrition, weight management, integrative medicine, oncology support, and dialysis.

She earned her master's in exercise and nutrition science at Lipscomb University.

Andrew has served as a president and board member of the Nashville Academy of Nutrition and Dietetics. She was recently elected a co-chair of the fitness and medicine group in the American College of Lifestyle Medicine.

Lynn Grieger is a registered dietitian-nutritionist, certified diabetes care and education specialist, certified personal trainer, and certified health and wellness coach. She completed requirements to become a registered dietitian at Valparaiso University in 1987 and completed a dietetic internship at Ingalls Memorial Hospital in Harvey, Illinois, in 1988. 

Lynn brings her expertise in nutrition, exercise, and behavior change to her work in helping people reach their individual health and fitness goals. In addition to writing for Everyday Health, she has also written for websites and publications like Food and Health Communications, Today's Dietitian, iVillage.com, and Rodale Press. She has a passion for healthy, nutrient-dense, great-tasting food and for being outdoors as much as possible — she can often be found running or hiking, and has completed a marathon in every state.

Rachel MacPherson, CPT, is a freelance writer, content strategist, and nutrition coach in the wellness space with nearly a decade of experience. She lives on the east coast of Canada.

Christopher Wolter, MD, is an assistant professor in urology at Mayo Clinic in Phoenix, Arizona. He has been in practice since 2008, specializing in the areas of urinary incontinence, pelvic organ prolapse, urologic reconstruction, urologic prosthetics, post prostate cancer survivorship, erectile dysfunction, neurourology and neuromodulation, and overall functional considerations of urogenital health.

Dr. Wolter has been heavily involved in urologic education. He spent the last 12 years heavily involved in resident education and leadership for his department, including the last eight years as urology residency program director. He currently serves as the director of urologic education for the preclinical and clinical rotations for the Mayo Clinic Alix School of Medicine Phoenix, Arizona, campus.

Wolter completed his undergraduate and medical education at the University of Illinois. He then completed his urology residency at Tulane University in New Orleans, followed by a fellowship in female pelvic medicine and reconstructive urology at Vanderbilt University in Nashville, Tennessee.

Andra Picincu is a certified nutritionist, personal trainer, and content writer with more than 15 years of experience. She holds bachelor’s degrees in psychology and in marketing and international business, and she’s dedicated to helping people improve their health through sustainable lifestyle changes.

She began her writing career when she was in college. Over the next few years, she took the steps to become a nutritionist and personal trainer, which allowed her to focus on these areas in her work. Today she contributes regularly to major health and lifestyle publications, including The List, Health Digest, Everyday Health, Aging in Place, and Stack. Her expertise revolves around sports nutrition, healthy eating, fitness, and mental well-being.

Outside of work, Andra spends as much time as possible outdoors—hiking, riding horses, pet sitting, and exploring the Nordic countries. With a strong interest in Scandinavian culture, she travels often to Denmark and neighboring regions to study the everyday habits that keep people there among the happiest and healthiest in the world.

Jennifer K. Frediani, PhD, RD, ACSM-CES, is a nutrition scientist, exercise physiologist, and registered dietitian with over two decades of experience in clinical research, education, and lifestyle intervention. She's an assistant professor, research track, at the Nell Hodgson Woodruff School of Nursing at Emory University, adjunct faculty in the nutrition and health sciences program at the Rollins School of Public Health, and a member of the Winship Cancer Institute.

Dr. Frediani earned her PhD in nutrition science from Emory University, and a master’s in exercise science and a bachelor’s in nutrition and dietetics from Georgia State University. Her doctoral research focused on body composition and dietary assessment among tuberculosis patients in the Republic of Georgia, and her postdoctoral work explored nutritional influences on pediatric liver disease.

She has published widely in journals such as Nature Scientific Reports, The New England Journal of Medicine, Clinical Nutrition, and Progress in Cardiovascular Diseases.

At Emory, she directs adult clinical studies for the NIH RADx initiative, overseeing trials on novel diagnostics for infectious diseases. She also leads the development of Emory’s fully online master of science in clinical nutrition program, designed to prepare future registered dietitian nutritionists through integrated coursework and supervised experiential learning.

Her research focuses on weight-neutral lifestyle interventions to improve cardiometabolic outcomes, with a special emphasis on dietary assessment, physical activity, and metabolomics.

Frediani’s teaching philosophy centers on creating inclusive, student-driven learning environments that foster critical thinking and professional growth. She is passionate about reducing weight stigma in clinical care and promoting sustainable, individualized approaches to food and movement.

Outside of work, Frediani is an avid runner and food enthusiast who travels the world to explore culinary traditions and cultural foodways. She believes that everyone deserves to enjoy food that nourishes both body and soul — without shame or restriction.

Joy Tanaka, PhD, specializes in clinical molecular genetics. She is dedicated to integrating excellent clinical care with cutting-edge medical research for patients with rare and undiagnosed disorders, and is focused on pursuing questions at the interface between genetics and human disease with the goal of developing novel therapies and treatments.

Dr. Tanaka received her PhD from Yale University School of Medicine, where she was a Howard Hughes Medical Institute Medical Research Scholar and recipient of the George Robert Pfeiffer Fellowship for Translational Medicine. She completed her clinical fellowship in cytogenetics and clinical molecular genetics at Columbia University and New York Presbyterian Hospital, and is currently associate clinical laboratory director at Rady Children's Hospital Institute for Genomic Medicine in San Diego, California.

Frieda Wiley, PharmD, is a bestselling author, award-winning freelance medical writer, and pharmaceutical consultant who has written for O, The Oprah Magazine, WebMD, AARP, Costco Connection, and the National Institutes of Health, as well as for a host of pharmaceutical companies, universities, and associations.

Her first book, Telecommuting Psychosis: From Surviving to Thriving While Working in Your Pajama Pants, became an Amazon bestseller in two categories and the No. 1 new release in educational research on Amazon.

Trained as a scientist, Dr. Wiley holds bachelor degrees in biochemistry and Spanish from the University of Texas and enjoyed a brief career as a chemist in the aerospace industry, working for a company that specialized in turbine jet engine overhaul and repair. She earned her doctorate in pharmacy from the University of the Incarnate Word Feik School of Pharmacy.

A passionate healthcare professional, she thrives on educating people about their bodies and medications in a way that is easy to understand. When Wiley is not writing, she enjoys traveling, jazz, great conversation — with or without a refreshing cup of herbal tea — and walking barefoot in the woods.

Samuel Mackenzie, MD, PhD, is an Assistant Professor of Child Neurology, Neuromuscular Disease, and Neuroscience at University of Rochester Medical Center. He completed his undergraduate studies at Cornell University before earning a master's degree in exercise science at the University of Delaware and his MD and PhD degrees at SUNY Upstate Medical University. He completed residency in child neurology at the University of Michigan and fellowship in neuromuscular medicine at The Ohio State University and Nationwide Children's Hospital.

Dr. Mackenzie's research interests broadly involve developing new ways to restore motor function in patients with neurological disease and developing gene-based treatments for patients with neuromuscular conditions. He also has an interest in health policy and advocacy, specifically as these relate to how scientific discoveries can best be leveraged for societal good in an equitable and cost-effective manner.

Roxana Ehsani, MS, RD, CSSD, LDN, is a Washington, DC–based registered dietitian-nutritionist, board-certified specialist in sports dietetics, and media spokesperson, consultant, and content creator for food and nutrition brands.

Ehsani has appeared as a food and nutrition expert for television stations across the nation and in national publications, including Runner's World, Women's Health, and Glamour, and is a contributing writer for EatingWell. She has a strong background in sports nutrition and has worked with professional, Olympic, collegiate, and high school teams and individual athletes.

Kelly Kennedy is a licensed dietitian-nutritionist with over 14 years of experience in digital media. She previously managed and oversaw nutrition content, recipe development, meal planning, and diet and nutrition coaching at Everyday Health. She developed and reviewed various meal plans, books, slideshows, and online tools, and oversaw the creation of more than 500 unique recipes. She received her bachelor's degree from the University of Massachusetts, Amherst, and a master's degree from the State University of New York College at Oneonta.

Kennedy enjoys anything that takes her outside, from gardening and playing in the yard with her kids to hiking and even feeding her pet chickens.

Maya Feller, MS, RD, CDN, is the founder and lead dietitian at Maya Feller Nutrition. In her practice, her team provides medical nutrition therapy and nutrition coaching for hormone and metabolic health, cardiovascular disease, diabetes, mood disorders, developmental disabilities, disordered eating, and more.

Feller believes in providing inclusive nutrition education from an anti-bias, patient-centered, culturally humble approach to help people make informed food choices. May shares her approachable, food-based solutions with millions of people on her new YouTube channel as the host of Where Wellbeing Meets Flavor, which includes cooking demos, exclusive interviews, and Q&As; in her on-demand master classes and courses, regular speaking engagements, writing, and social platform posts; and as a national nutrition expert on Good Morning America.

Feller is also on the advisory board for Shape and Parents; has been on the Today show and Tamron Hall; and has appeared in The New York Times, Mindbodygreen, Food Network, Martha Stewart, Real Simple, Good Housekeeping, Cooking Light, Eating Well, Prevention, Glamour, Self, and other publications.

She is the author of Eating From Our Roots: 80+ Healthy Home-Cooked Favorites From Cultures Around the World and The Southern Comfort Food Cookbook.

Dr. Claudia Thompson is an assistant teaching professor at Arizona State University’s College of Health Solutions and a practicing registered dietitian. She has worked at Mayo Clinic Phoenix and consulted as a sports dietitian for professional teams, including the Phoenix Suns, Utah Jazz, Arizona Cardinals, and Milwaukee Brewers. She has authored and reviewed nutrition content for Livestrong.com and has taught and developed nutrition curricula and study-abroad programs.

Michael Natter, MD, is a clinical assistant professor in the department of medicine at the NYU Grossman School of Medicine in New York City. Fusing his background in fine art with his medical practice, he creates medical illustrations and comics to both educate his patients, colleagues, and medical students as well as explore the emotional and human side of medicine. His work has been featured in The Philadelphia Inquirer, the Annals of Internal Medicine, Medscape, BuzzFeed, and others.

Dr. Natter was diagnosed with type 1 diabetes as a child and became interested in medicine at a young age. He initially began his studies in studio art but ultimately attended the Sidney Kimmel Medical College before returning to his home in New York City to complete his internal medicine residency and fellowship.

Grant Chu, MD, is an associate clinical professor at the David Geffen School of Medicine at UCLA. Dr. Chu is also associate director of inpatient East-West consult services at the UCLA Health hospitals.

He's board-certified in internal medicine by the American Board of Internal Medicine and is a diplomate of the National Certification Board for Acupuncture and Herbal Medicine (formerly the National Certification Commission for Acupuncture and Oriental Medicine).

He received a bachelor's degree in neuroscience from Brown University, where he also earned his medical degree. He has a master's in acupuncture and oriental medicine from South Baylo University and a master's in business administration from the University of Illinois at Urbana-Champaign.

He completed his residency in internal medicine at the University of California in Los Angeles and a fellowship at the Center for East-West Medicine at UCLA. He has held academic appointments at the University of California in Irvine and the University of Queensland in Australia.

Kristina D. Carter, PharmD, is a clinical pharmacist and freelance health writer who currently works in a managed care setting, performing quality audits on utilization management case reviews for the pharmacy team. She has over 20 years of experience and has worked in several pharmacy practice settings, including at a community pharmacy as well as in ambulatory care, senior care, and pharmacy operations.

She received her doctor of pharmacy degree from Xavier University of Louisiana College of Pharmacy and her master's of business administration and health administration from Georgia State University Robinson College of Business. She is an American Council on Exercise–certified health coach, group fitness instructor, senior fitness specialist, and weight management specialist. She is also a registered pharmacist, licensed in Georgia, Indiana, and Tennessee.

Dr. Carter enjoys exploring new restaurants with family and friends, walking along city trails, and watching action movies and college sports.

Chester Wu, MD, is double board-certified in psychiatry and sleep medicine. He cares for patients through his private practice in Houston, where he provides evaluations, medication management, and therapy for psychiatric and sleep medicine conditions.

After training at the Baylor College of Medicine and Stanford University School of Medicine, Dr. Wu established the first sleep medicine program within a psychiatric system in the United States while at the Menninger Clinic in Houston.

Natalia Johnsen, MD, is a triple board-certified physician in internal medicine, lifestyle medicine, and obesity medicine, practicing as an internist and consultant at the Vancouver Clinic in Vancouver, Washington.

Dr. Johnsen began her medical career as an ob-gyn in Russia before relocating to the United States in 2000. She completed her internal medicine internship at the University of Nevada and her residency at a Stanford-affiliated program in Santa Clara, California.

Deeply interested in the impact of lifestyle on both physical and mental health, Johnsen transitioned her focus toward prevention-based care after witnessing how many chronic conditions could be avoided or improved through lifestyle interventions. She became board-certified in lifestyle medicine in 2021 and further expanded her expertise by earning board certification in obesity medicine in 2025.

Johnsen is passionate about empowering patients with evidence-based tools to achieve sustainable health and long-term well-being.

Julie Cunningham is a registered dietitian-nutritionist and a certified diabetes care and education specialist.

Cunningham received a bachelor's degree from Appalachian State University in North Carolina. She subsequently completed a master's degree in public health nutrition at the University of North Carolina at Chapel Hill.

Cunningham has worked in women's and children's health, cardiology, and diabetes. She has written for Abbott Nutrition News, Edgepark Medical HealthInsights, diaTribe, Babylist, and others. She is also the author of 30 Days to Tame Type 2 Diabetes.

A resident of beautiful western North Carolina, Cunningham is an avid reader who enjoys yoga, travel, and all things chocolate.

Blair Murphy-Rose, MD, is a board-certified dermatologist in New York City and the founder of Skincare Junkie. She is an accomplished cosmetic, medical, and surgical dermatologist, specializing in leading-edge facial rejuvenation techniques, including injectable fillers and botulinum toxin injections, advanced laser procedures, noninvasive body contouring, and removing lumps and bumps with precision. She is an expert in the treatment and detection of medical conditions, including skin cancer, acne, rosacea, eczema, and psoriasis. Dr. Rose believes in a comprehensive approach to skin health and incorporating a skin-care routine tailored specifically for each individual and utilizing a wide array of tools to target specific skin concerns.

Rose has been published in peer-reviewed journals, including the Journal of the American Academy of Dermatology, Dermatology Surgery, and Pediatric Dermatology, and has been featured in numerous publications, including Vogue, Elle, Allure, Cosmopolitan, Self, Women’s Health, The Wall Street Journal, and The New York Times.

Janet Renee, MS, RD, is a registered dietitian nutritionist with over a decade of experience in clinical practice and health communications, specializing in weight management, sports nutrition, and medical nutrition therapy.

Jill is a registered dietitian and health writer based in Honolulu. She spent the early part of her career working in a traditional setting as a clinical dietitian in a hospital, then transitioned into management. Jill began her career as a health writer in 2007 while working as a clinical nutrition manager in Florida. She became a full-time writer in 2010 after the birth of her first child. Jill has written for numerous publications, including Livestrong; Eat This, Not That!; Fortune Recommends; Hone Health; and Diabetes Self-Management.

Sylvia Klinger, DBA, MS, RD, CPT, is an internationally recognized nutrition expert who is relentlessly passionate about helping people fall in love with creating and enjoying delicious, safe, and nutritious foods.

As a food and nutrition communications professional, Dr. Klinger is a global nutrition professor, award-winning author, and the founder of Hispanic Food Communications.

She is on the board at Global Rise to build a formal community nutrition program as part of an ambitious initiative to create a regenerative food system in Uganda in partnership with tribal and community leaders. This program included an extensive training session on food safety and sanitation that displayed cultural sensitivity and various communication strategies and incentives to spread these important food safety and sanitation messages into the communities.

Her Hispanic background fuels her passion for nutrition, leading her to empower and encourage those in her community through the foods they enjoy in their kitchens. At the same time, she understands everyone’s needs are different and seeks to individualize nutrition and exercise to best fit each person and their journey to a happy, safe, and healthy life.

Her latest book, The Little Book of Simple Eating, was published in 2018 in both Spanish and English.

In her spare time, Klinger explores food and culture all over the world with her family, realizing the power a healthy lifestyle has to keep people together.

Rommana Aziz, DO, is a board-certified family medicine and lifestyle medicine physician with over 20 years of experience. She is the medical director at a large direct healthcare company, where she combines her fields of expertise to innovate healthcare solutions and improve patient outcomes. Her goal is to provide preventive and holistic care for people of all ages, emphasizing nutrition and exercise to improve well-being and prevent chronic illness.

Dr. Aziz applies her background in lifestyle medicine to guide patients to better health through evidence-based lifestyle interventions such as avoiding harmful substances, increasing activity, incorporating whole foods, practicing mindfulness, and connecting positively with others. She has presented webinars and lectures on cancer and Alzheimer's prevention through holistic healthy changes.

Yuying Luo, MD, is an assistant professor of medicine at Mount Sinai West and Morningside in New York City. She aims to deliver evidence-based, patient-centered, and holistic care for her patients.

Her clinical and research focus includes patients with disorders of gut-brain interaction such as irritable bowel syndrome and functional dyspepsia; patients with lower gastrointestinal motility (constipation) disorders and defecatory and anorectal disorders (such as dyssynergic defecation); and women’s gastrointestinal health.

She graduated from Harvard with a bachelor's degree in molecular and cellular biology and received her MD from the NYU Grossman School of Medicine. She completed her residency in internal medicine at the Icahn School of Medicine at Mount Sinai, where she was also chief resident. She completed her gastroenterology fellowship at Mount Sinai Hospital and was also chief fellow.

Kayli Anderson has over a decade of experience in nutrition, culinary education, and lifestyle medicine. She believes that eating well should be simple, pleasurable, and sustainable. Anderson has worked with clients from all walks of life, but she currently specializes in nutrition therapy and lifestyle medicine for women. She’s the founder of PlantBasedMavens.com, a hub for women to get evidence-based, practical, and woman-centered guidance on nutrition and cooking, hormone health, fertility, pregnancy, movement, mental well-being, nontoxic living, and more.

Anderson is board-certified in lifestyle medicine and serves as lead faculty of the American College of Lifestyle Medicine’s (ACLM) "Food as Medicine" course. She is past chair of the ACLM's registered dietitian member interest group, secretary of the women's health member interest group, and nutrition faculty for many of ACLM's other course offerings. She is the coauthor of the Plant-Based Nutrition Quick Start Guide and works with many of the leading organizations in nutrition and lifestyle medicine to develop nutrition content, recipes, and educational programs.

Anderson frequently speaks on the topics of women’s health and plant-based nutrition and has coauthored two lifestyle medicine textbooks, including the first one on women’s health, Improving Women's Health Across the Lifespan.

She received a master's degree in nutrition and physical performance and is certified as an exercise physiologist and intuitive eating counselor. She's a student of herbal medicine and women's integrative and functional medicine. She lives with her husband in the Colorado Rocky Mountains, where you’ll find her out on a trail or in her garden.