Dianne Koehler, Nutrition Therapy Institute Director

Dianne Koehler, MNT, Director

ntischoolFaculty, Staff

Currently owner and Director of Nutrition Therapy Institute (NTI) in Arvada, CO, Dianne has been a leader in the field of nutrition education for 15 years. She is committed to …

Brittany Ferrer Holistic Nutritionist

Brittany Ferrer, NTM

Dianne KoehlerStaff

Brittany has a passion for helping people optimize their health with nutrition. She believes in the healing power of herbs and loves foraging for and making her own herbal remedies. …

Amber Williams is a Natural Food Chef, Master Nutrition Therapist, and admissions counselor at Nutrition Therapy Institute.

Amber Williams, MNT, NFC

Dianne KoehlerStaff

Amber Williams is a certified Master Nutrition Therapist & Natural Food Chef. After suffering years of debilitating health symptoms and never finding answers in conventional medicine, Amber pursued a change …

Amber Frazier, NTM, NFC

Dianne KoehlerFaculty, Staff

Amber is a self-proclaimed nutrition nerd.  She found NTI as a student after many years of passionately pursuing health and wanting to learn how to thrive rather than just survive.  …

Daina Rasutis, MS, NTM

Daina Rasutis, MS, NTM


Daina graduated with an MS in Civil Engineering with a focus on Sustainability, but found herself most interested in work related to food and environmentalism. In the last 6 years …