Within the market taxonomy of gluten containing ancient grains, the type dimension comprises four principal grain varieties: Einkorn, Emmer, Spelt, and Kamut. Each variety is further sub‑segmented into whole‑grain, semi‑refined flour, and refined flour formats, reflecting processing intensity and end‑use suitability. Einkorn, the earliest domesticated wheat, commands a niche premium due to its distinct flavor and higher protein, contributing approximately 20 % of type‑level sales, predominantly in whole‑grain form. Emmer accounts for 25 % of the segment, favored in artisanal breads and pasta, with a balanced mix of whole and semi‑refined products. Spelt, the most commercially mature ancient grain, drives 40 % of type revenue, supported by extensive flour applications across bakery and snack categories. Kamut, valued for its large kernel and buttery taste, holds the remaining 15 % share, largely in refined flour used for specialty pastries. This granular breakdown clarifies how each grain type underpins the broader gluten containing ancient grain market.