Isabel Smith Nutritionist headshot vertical

Meet Isabel!

Hi, I’m Isabel! I’m a passionate, life-long health and wellness lover and am living the dream I’ve imagined since I was 11. All my life I’ve had a profound passion to help people be well and thrive and have found that food can really be healing and health-promoting if we allow it to be.

As a child, I had chronic stomach aches and a million food allergies (red foods, eggs, wheat, dairy)- and I was also an athlete, so finding food that worked for my body and felt good at the same time was (and is) always really important to me. Though I’ve certainly had my own food struggles, throughout my teens, twenties, and into my thirties, I’ve certainly found a wonderful place for the food that makes my body and mind feel good, and especially for my dessert (if you follow me on social media you’ll see that!).

My philosophy is built on the premise that most of our bodies do better with more plants, more movement, and fewer processed ingredients, but the specifics of how each of us lives are completely different because we all have different needs.

I/we work with each of our clients closely to help them feel their best by taking a personalized approach and blending functional, holistic, and integrative medicine. We recognize that everyone (and their bodies) are different which is why we help our clients to listen, learn from, and provide for their bodies. In this process, clients will improve their relationship with food and themselves, thereby enabling healing so they can achieve their health goals (whatever they may be!).

I’m so excited for you to learn more about how me and my team can help you live a happier and healthier life!

Professional Biography

Isabel Smith, MS RD CDN, is a nationally recognized Registered Dietitian, Health and Lifestyle Expert,  CEO & Founder of Isabel Smith Nutrition; Angel Investor, and Entrepreneur. 

Isabel holds a Registered Dietitian License, a Bachelors of Health and Exercise Science from Gettysburg College, and a Masters of Science in Nutrition Communications from Tufts University. Isabel was trained in all areas of clinical nutrition at New York Presbyterian Hospital in New York City and has worked with patients at other highly esteemed Academic Medical Centers including Dana Farber Cancer Institute, and Hospital for Special Surgery. Throughout her training, Isabel also trained under some of the best Integrative and Functional Medicine Dietitians and Clinicians and uses her Integrative and Functional Wellness training together with her clinical background when working with clients and groups.

In her private practice, Isabel and her team work with clients in the areas of functional and integrative wellness in the areas of hormonal balance, weight loss and intuitive eating, allergies and immune health, weight loss, thyroid health, digestive health (celiac, IBS/IBD, allergies and sensitivities), athletic performance, blood sugar control, and more. In addition to private client work, Isabel also works with corporations and corporate executives to promote healthy eating and mindfulness/stress management.

Isabel has been on Expert Advisory Boards of organizations like Eat This, Not That, and MBODY 360, and her expert opinion is often featured in places like Elle, Mind Body Green, Readers Digest and more.  Isabel is also an advisor, Angel Investor in the CPG space, and consultant for various food and health-minded brands (in the past Isabel has worked with Anheuser-Busch, KIND, Biotta Juice, Caesarstone, Liebherr Appliances to name a few).

Recently Isabel and her team launched The Wellfuel Podcast, where they discuss various different health topics, share client results and more.

In her spare time, Isabel can be found making new recipes, trying various new exercise classes, practicing yoga and running/hiking with her Yorkshire Terriers, Sasha and Henry, and husband Paul.


  • B.A. Health and Exercise Sciences, Gettysburg College
  • M.S. Nutrition Communications, Tufts University
  • Dietetic Internship: New York Presbyterian Hospital
  • Oncology Fellowship: New York Presbyterian Hospital


  • Registered Dietitian Nutritionist, Academy of Nutrition and Dietetics
  • Certified Dietitian Nutritionist, State of New York
  • Active Member of Greater New York Dietetic Association
  • Active Member of Academy of Nutrition and Dietetics (Dietitians in Functional Medicine and Nutrition Entrepreneurs groups)
  • Certified Reiki Practitioner, Level 2

Meet the Team

Isabel Smith Nutrition Meet the Team - Maeson Tydings

Maeson Tydings

Registered Dietitian

Maeson Tydings is a highly skilled Registered Dietitian and lifelong athlete, formerly a Division 1 lacrosse player, dedicated to helping her clients achieve optimal health. Motivated by her own health challenges, including thyroid issues, skin flare-ups, hormonal imbalances, and long COVID, Maeson embarked on a journey into functional nutrition.

Trained at the Harvard-affiliated Beth Israel Deaconess Medical Center in Boston, Maeson brings extensive experience in clinical settings, outpatient counseling, research, and food service. Her clinical expertise spans a wide range of conditions, including oncology, gastrointestinal disorders, cardiovascular disease, liver disease, and transplant needs.

Specializing in optimizing gut health, improving skin health, managing chronic illnesses, and supporting weight management, Maeson adopts a holistic approach to ensure personalized care tailored to each client’s unique needs. Outside of her professional work, Maeson stays active through workout classes and enjoys playing pickleball or volleyball on the beach.

Isabel Smith Nutrition Team - Sydney Flippo

Sydney Flippo

Registered Dietitian Nutritionist MS, RDN, CDCES, IFNCP

Sydney has been a Registered Dietitian Nutritionist for 10 years and a certified Diabetes Care and Education Specialist (CDCES) for 8 years. She is a board-certified Integrative and Functional Nutrition Certified Practitioner (IFNCP). Sydney received a B.S. in Nutrition Science from Virginia Tech and an M.S. in Nutrition Science from East Carolina University. She has worked in various settings, from outpatient care to corporate wellness, and now works in private practice here at Isabel Smith Nutrition. She loves working with clients on gut health, women’s health, chronic illness, autoimmune disorders, and allergies/histamines. Outside of her professional work, Sydney can be found playing with her dog Lui, hiking, taking a group fitness class, or attending various music events in LA.

Lisa Bakal

Sales Concierge

Lisa’s commitment to enriching the client journey through nurturing and innovative leadership is backed by over twenty years of expertise. Her seasoned experience allows her to spearhead personalized client growth, thereby enhancing the overall client experience.

Isabel Smith Nutrition Team - Kier Dawinan

Kier Dawinan

Social Media Manager and Engagement Specialist

Kier’s passion for social media is a driving force that continues to grow with each project he undertakes. Kier manages all facets of campaigns, from guiding creative direction to fostering community engagement ensuring meaningful interaction with our audience.

Isabel Smith Nutrition Team - Tiffany Greenwell

Tiffany Greenwell


Tiffany excels in providing direct support to the CEO and offers comprehensive assistance to the team and business. Tiffany ensures smooth business operations, prioritizing efficiency, team management, and streamlined project planning.

Isabel Smith Nutrition Team - Susan Poisson

Susan Poisson

Virtual Assistant and Podcast Producer

Susan’s passion and skills fuel growth in all her projects. As a virtual tech assistant and podcast producer, she manages marketing metrics and creates engaging podcast episodes. With her expertise and dedication, our audience stays captivated every week.

Let's Get Started

We help men and women of all ages live healthier and happier lives by focusing on the whole person – your individual needs, lifestyle, mental health, and goals.