2.13 Ingredient Name Is Not Ingredient State

Ingredient name is not Ingredient State.

The same declared chicken, duck, fish, beef, animal fat, or fish oil can enter the cat in different actual states.

Variation comes from batch, storage time, temperature control, oxygen exposure, processing method, fat exposure, packaging seal, shelf cycle, and post-opening use period.

In industrial supply, name stability across labels does not guarantee state stability across batches.

Fat Freshness Boundary is a system boundary, not a minor detail.

The same ingredient name across batches may differ in fat condition, protein condition, storage history, and microbial load.

From raw material through production, transport, shelf, and home use, time changes odor, fat state, and output stability.

Heat, grinding, drying, extrusion, baking, spray-coating, and mixing change physical form and fat exposure state.

Fat Freshness Boundary affects palatability, gastric feedback, stool state, skin-sebum outputs, and long-term stability.

ingredient name on label

↓

appears to be animal-source input

↓

assumed stable entry state

ingredient name

↓

batch / storage / processing / post-opening cycle

↓

Ingredient State and Fat Freshness Boundary

↓

digestive feedback / stool output / skin-sebum system / palatability shift

Under the same formula name, batch-to-batch state change may appear as palatability fluctuation, loose stool or vomiting, or skin-sebum output shift.

Those outputs require backtrace through Ingredient State and fat state—not reassignment to a new allergy label by default.