The thyroid is a small gland with a big role in regulating metabolism, energy, mood, and hormone balance. Thyroid dysfunction can take several forms: hypothyroidism (underactive thyroid), Hashimoto’s thyroiditis (autoimmune thyroid destruction), or post-thyroidectomy status (after surgical removal for cancer or nodules). Many patients struggle with symptoms even when labs appear “normal.” Functional medicine evaluates not just TSH and T4, but also Free T3, Reverse T3, thyroid antibodies, and nutrient co-factors needed for proper conversion and utilization of hormones. Through a combination of lifestyle, dietary, and targeted supplement or medication strategies, we aim to restore optimal thyroid function and symptom resolution.