About
Why Root?
We're a team of doctors and dietitians who are dedicated to treating hormones and gut health at the Root cause. We work with people one on one in the most comprehensive functional medicine memberships ever. Our signature program available nationwide includes doctor and dietitian sessions, lab testing, digital meal plans, educational resources, and community support.
What we do
Period problems, PCOS, fatigue, autoimmune, thyroid, perimenopause hormone balance and gut health issues - we've been there. We've helped thousands of people and we're ready to share our proven process with everyone. Wondering where to start?
Our Areas of Focus
Autoimmune
Food Sensitivities
Gut Health
Hormone Balance
PCOS
Period Problems
Skin Health
Thyroid
Weight Loss
What we offer
Your Personalized Wellness Plan
We stop the overwhelm from nutrition misinformation and give you what you need to balance your plate, your hormones, and your life through our:
- Free Online Assessment and Recommendations
- Supplements that we've tested both in a lab AND in our programs - yes, we actually measure real results in our members using these supplements!
- Online Programs so you can use our steps at your own pace
- 1 on 1 functional medicine programs via telehealth expanding nationwide
Meet our doctors and dietitians
Erica Armstrong
MD, IFMCP, Founder of Root
Special Interests: PCOS
Author: The PCOS Thyroid Connection. The first book in the U.S. on the connection and root causes of these two conditions.
Hobbies: running, Peloton, walking my dog, playing basketball at the park with my kids - anything active!
Author: The PCOS Thyroid Connection. The first book in the U.S. on the connection and root causes of these two conditions.
Hobbies: running, Peloton, walking my dog, playing basketball at the park with my kids - anything active!
Favorite thing about working at Root: We are constantly innovating and improving and I love hearing everyone’s ideas.
Dr. Armstrong is not currently accepting new consultation members.
Dr. Armstrong is not currently accepting new consultation members.
Emily Cordes
DO, IFMCP
Special Interests:
Hypothyroidism
Skin/Acne
Women's Health (PCOS, endometriosis, Perimenopause)
Hobbies: Cooking, Fitness, Downhill Skiing, Cycling, Hiking, Gardening, Spoiling my Labrador Retriever
Hypothyroidism
Skin/Acne
Women's Health (PCOS, endometriosis, Perimenopause)
Hobbies: Cooking, Fitness, Downhill Skiing, Cycling, Hiking, Gardening, Spoiling my Labrador Retriever
Favorite thing about working at Root: Practicing at Root allows me to truly get to know each person, put the puzzle of symptoms together and then create a solution as a team (Root member/Physician/Dietitian). This is how I always imagined I would practice medicine. Plus, I get to work with an awesome team and talk about food all day!
Cici Carter
MD, IFMCP
Special Interests:
Anxiety, Mood, Adrenal health (stress, insomnia, anxiety, fatigue)
Metabolism
Anxiety, Mood, Adrenal health (stress, insomnia, anxiety, fatigue)
Metabolism
GI health (dysbiosis, SIBO, IBS)
Women’s Health (PCOS, irregular periods, endometriosis)
Hobbies: Spending time with family and friends. Running and lifting weights. Reading in and outside of book club. Traveling. Helping with home projects.
Favorite thing about working at Root: I’m motivated by all the passion my colleagues and I share to help our members feel validated about their healthy journey. At Root, we strive to give our members the tools and resources to empower them to take control of their health. Our members are at the top of the priority list!
Marzena Slater
MD, IFMCP
Special Interests:
Gut Health:
Irritable bowel syndrome (IBS)
IBD (Crohn's & Ulcerative Colitis)
Celiac Disease
Autoimmune Disease
Sports Performance Optimization
Hobbies: Spending time in nature- walks, hiking, skiing, running. Traveling. Reading
Gut Health:
Irritable bowel syndrome (IBS)
IBD (Crohn's & Ulcerative Colitis)
Celiac Disease
Autoimmune Disease
Sports Performance Optimization
Hobbies: Spending time in nature- walks, hiking, skiing, running. Traveling. Reading
Favorite thing about working at Root: There are so many things I love about working at Root, that I can't just pick one. At the top of my list- The people I work with, the collegial atmosphere, the common goal of delivering food as medicine to our community and beyond, and of course helping clients recover from years of chronic symptoms with the food as medicine approach.
Working with Dr. Marzena Slater and Amy Masterson has been the most rewarding health experience. Within a month I saw a dramatic reduction in my symptoms and over time they continue to improve.
Gracie Sanchez
RDN, CLT, IFNCP
Hobbies: Biking & cooking or baking with unique ingredients in the kitchen with my kids. I love seeing their reactions!
Favorite foods: Right now, spicy foods! Spicy ramen bowls or Indian food!
Favorite thing about working at Root: I love our team! Collaborating with a team that has similar goals when it comes to the type of patient care we give is wonderful and transformational!
Languages: English & Spanish
Amy Masterson
MS, RD
Hobbies: Cooking, hiking, camping
Favorite food: Can't decide between tacos & potatoes
Favorite thing about working at Root: Always trying to do the right (actually helpful, sustainable) thing even if it's not the sexy thing
Employer who understands overall health and stress management
Working with other amazing women
Always a lot of exciting things going on
Danielle Fiskars-Byers
RDN
Hobbies: My hobbies are running, cooking and baking. I've recently discovered a love of home renovations projects and have been learning new skills along the way. In the summer, I spend as much time as I can on our boat enjoying the water and sunshine!
Favorite Food: I love a good salad with salmon and lots of fresh herbs!
Favorite thing about working at Root: I love looking at each member's unique health needs and goals & then helping them to create a roadmap to feeling their best physically, mentally and emotionally! We all work together at Root to support each other and our clients which creates a culture and environment that is full of warmth.
Kelsey's advice has been very helpful in tweaking things for me to make this a long-term way of living, not a quick fix or "diet".
Kelsey Stricklen
MS, RD
Hobbies: Cooking, Peloton, hiking, paddle boarding, bird watching
Favorite food: Potatoes in any form or tacos. Favorite meal ever - Root Farmacy salmon cakes!
Favorite thing about working at Root: Helping people sort through all of the confusing and conflicting nutrition information out there and figuring out what works best for THEIR body. I also love our team approach! Being able to collaborate with other providers on each case is so helpful.
Lindsey Dubey
Health Coach
Hobbies: Going on adventures with my partner and my dog, Isabelle aka Isabellyrub, movement/fitness of all kinds, cooking, baking, cozying up on the couch with a good book and going to shows!
Favorite Foods: So many to list. I love food and I love cooking. Staples in our house are homemade beet or sweet potato gnocchi with homemade pesto from the garden, chicken curry and taco night!
Favorite thing about working at Root: Being surrounded with like-minded people who are focused on hearing people's stories and helping them to truly heal from within.
Book a Free Doctor Discovery Call
Want to learn more about our functional medicine program?
Schedule a free 15-minute doctor discovery call to figure out if a functional medicine approach is right for you. Hope for healing is only a click away.
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