A composition of matter is used as an ingredient in consumable products (for humans and pets) comprising at least 0.005% by weight and preferably 1-30% by weight of highly refined cellulose fiber having at least 15% by total weight of the highly refined cellulose material of an oil-based flavoring or aroma-producing material, the composition of matter being provided as a free-flowing, dry-feel particulate material having a number average mean particle size of less than 2 mm.