Thyroid Natural Glandular provides carefully sourced, freeze-dried thyroid tissue to support healthy thyroid function and metabolic balance.* Derived from range-grazed, government-inspected animals in New Zealand and Australia, this traditional glandular preparation preserves key nutrients and bioactive compounds to nourish thyroid health and vitality.* Capsule color may look darker. This reflects our move toward a cleaner, more hypoallergenic formulation with fewer excipients. The product's quality and potency remain exactly the same.