Trusted Supplements


Expertly formulated, medical-grade supplements to restore your body's natural ability to heal

Shop now

Your Path to Better Health

Shop our essential supplements

View all

Our mission is to help people feel confident, comfortable, and in control of their bodies through real, science-backed care that supports long-term wellness.

Dr. Seth Osgood

Featured Product

LMNT Variety Pack

A tasty electrolyte drink mix that is formulated to help anyone with their electrolyte needs and is perfectly suited to folks following a keto, low-carb, or paleo diet.

Shop now

Testimonials

  • Corinne W.

    Dr. Osgood has helped me turn around my autoimmune disease and I am now feeling better and better after each visit! Healing the gut and getting my body to a healthy state has taken time, but it has all been worth it and I could not have done it with out Dr. Osgood's expertise and direction!

  • Tyler T.

    Following the plan Dr. Osgood designed, I’m overjoyed to report my Graves’ Disease is now in full remission! I am strong, have energy, and am generally happier than I have been in years.

  • Kim R.

    Dr. Osgood has been a life changer for my 9 year old son who has PANDAS/PANS/ Lyme. He has found ways to help him heal all while listening to my suggestions and concerns along the way. I can’t say enough about how much he has helped our journey.

  • Mariana G.

    Dr. Osgood is a caring, sensitive, an authentic human being whose mission is clearly to empower people to be the best version of themselves. I feel immense gratitude for having found such knowledgeable functional doctor in my life! He has helped me resolve and overcome a very difficult health challenge. I recommend GrassRoots with all my heart!

  • Jamie C.

    Dr. Osgood has been integral in my healing journey. I have recovered from severe eczema on my hands and face largely due to his fantastic care and support. I highly recommend his care to anyone who is looking to heal from the inside out. Dr. Osgood does discover root causes of illness and provides a solid plan towards recovery.

  • Erin C.

    Grassroots functional medicine is a blessing to our community. It is a place of healing and health. I’m thankful to have a place like this so close to home. It does not simply treat symptoms, but strives to find the real cause of them, so you can improve and enjoy the quality of your life. I highly recommend.
Schedule Now

Meet Dr. Seth Osgood

Dr. Seth Osgood, DNP, FNP-BC, IFMCP, is a Doctor of Nursing Practice, Board-Certified Family Nurse Practitioner, and Institute for Functional Medicine (IFM) Certified Practitioner.

As the founder of GrassRoots Functional Medicine, Dr. Osgood leads a highly trained clinical team dedicated to identifying and addressing the true root causes of symptoms—not just managing them. Together, the GrassRoots team takes a thoughtful, evidence-based, and personalized approach to care, helping patients restore health, resilience, and long-term vitality.

GrassRoots Functional Medicine has helped thousands of individuals from around the world navigate complex health challenges and achieve meaningful, lasting transformation.

Ready to take the next step?

Schedule a complimentary 10-minute consultation with a member of the GrassRoots Functional Medicine Team to review your health history, discuss your goals, and determine the best next steps for your care.

Sign up now!