Trusted Supplements


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

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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.

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  • 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.

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.

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