Within the types dimension, the market differentiates between whole‑grain oats, oat flour, instant oats, and specialty fractions such as oat bran or beta‑glucan isolates. Whole‑grain oats dominate the volume base, supplying 40 % of shipments; they retain fiber and micronutrients, meeting consumer demand for minimally processed, whole‑food ingredients. Oat flour holds a 30 % share, prized for its fine texture and versatility in gluten‑free baking, where it directly substitutes wheat flour in breads, pastries, and mixes. Instant oats capture 20 % of sales, driven by convenience‑oriented products that require rapid rehydration, a segment expanding through single‑serve snack packs. The remaining 10 % comprises specialty fractions, including oat bran for high‑fiber formulations and purified beta‑glucan isolates for nutraceutical claims. Each type contributes uniquely to the market size: whole‑grain and flour sustain bulk demand, while instant and specialty fractions command higher margins, illustrating a nuanced market taxonomy that balances volume and value across the Gluten-Free Pure Oat landscape.