Heidi Toy Functional Medicine is an Eau Claire, Wisconsin-based practice led by Heidi Toy, a certified functional medicine practitioner and certified functional nutritional therapist. The practice focuses on helping people heal through nutrition and diet, with an emphasis on balancing body systems, supporting hormones and energy, reducing symptoms, and educating clients to better support their own health. Services and topics referenced include functional nutrition guidance and Hair Tissue Mineral Analysis (HTMA).