The type segmentation of the Glandular Supplements market distinguishes products by source animal and processing method, each influencing potency, safety profile, and market niche. Bovine‑derived supplements, the largest category, are sourced from cattle organs and are frequently offered as whole‑organ extracts or hydrolyzed protein powders, contributing the greatest share due to established supply chains. Porcine‑derived products, obtained from pig organs, occupy a secondary tier, often marketed as standardized enzyme preparations for digestive applications. Avian‑derived supplements, primarily from chicken and turkey glands, are valued for their high bioavailability and are commonly presented as freeze‑dried powders. Marine‑derived offerings, sourced from fish or shellfish glands, represent a niche segment focused on omega‑rich phospholipid extracts. Within each type, sub‑categories such as whole‑organ extract, hydrolyzed protein, and enzyme‑standardized formulations further differentiate pricing and clinical positioning, collectively defining the market taxonomy for Glandular Supplements.