Type segmentation in the Animal Feed Supplement Protein market distinguishes protein sources that drive formulation strategies and cost structures. Soy‑derived protein concentrates and isolates remain the dominant sub‑type, accounting for roughly 40 % of total volume because of their favorable amino‑acid profile, high availability, and low price. Fish meal, sourced from processing by‑products, contributes about 20 % and is prized for its high digestibility and essential omega‑3 content, supporting premium niche markets. Meat‑and‑bone meal, a rendered animal protein, supplies roughly 15 % of the market, offering a dense source of calcium and phosphorus alongside protein. Emerging insect‑derived protein, primarily from black soldier fly larvae, is capturing 8 % of volume as sustainability pressures incentivize alternative proteins. Synthetic amino acids such as lysine and methionine, produced via microbial fermentation, represent the remaining 17 % and are used to balance amino‑acid ratios without adding bulk. Together, these sub‑types define the market’s supply dynamics and influence overall market size through price elasticity and regulatory constraints.