"The Thyroid Debacle" by Eric Balcavage (DC) and Kelly Halderman (MD) challenges conventional thyroid treatment, arguing that hypothyroidism is often driven by cellular dysfunction rather than glandular failure. The book critiques standard TSH and T4 testing while advocating for a root-cause approach that considers inflammation, metabolism, and toxicity. Balcavage and Halderman explore strategies for addressing thyroid dysfunction beyond medication. A research-based perspective on understanding and managing thyroid health through a functional medicine lens.