Greenhouse Functional Nutrition was founded by Heather Lewis, FNP-C, FNC—a Family Nurse Practitioner and Functional Nutrition Counselor—on a mission to bridge the gap between generic care and overwhelming wellness advice. After working with hundreds of families to uncover the root causes of everything from behavior challenges to gut imbalances and food sensitivities, Heather created Greenhouse as a grounded, supportive space for healing.

At Greenhouse, food is medicine—but so is intuition, lifestyle changes, and meeting people where they are. Our approach blends modern science with practical, personalized care, always rooted in respect for parents, caregivers, and individuals as the experts of their own health.

We believe in root-cause care, practical solutions, and empowering you to take control of your wellness.. Greenhouse offers personalized functional nutrition for children, adults, and families—supporting better health at every stage of life.