The guaranteed analysis, decoded

Floors and ceilings, not contents

'Crude protein (min) 26%' is a legal promise that the food contains at least 26% protein — not that it contains 26%. Protein and fat are declared as minimums; crude fiber and moisture as maximums. A bag can beat its protein minimum by several points, and two batches of the same food can differ. The panel constrains the recipe; it doesn't describe it.

'Crude' describes the lab method, not the quality

Crude protein is measured by nitrogen content — the lab measures nitrogen and multiplies. The word says nothing about how digestible or complete the protein is; a leather boot has crude protein. It's also why the 2007 melamine adulteration worked: melamine is nitrogen-rich, so spiking it made wheat gluten test as higher protein. The number is honest about quantity and silent about quality — which is exactly why the ingredient panel matters alongside it.

The number that isn't there: carbohydrates

Pet food labels are not required to state carbohydrates, and most don't. You can estimate: 100 − protein − fat − moisture − fiber − ash. Ash (the mineral residue) is often unstated too; typical kibble runs around 6–8%. Run that math on a typical dry food and the answer surprises people — many kibbles are a third carbohydrate or more. Nothing wrong in itself, but it's the biggest unprinted fact on the bag.

You still can't compare bags directly

Every percentage on the panel is 'as fed' — it includes the water. A canned food and a kibble can't be compared until the moisture comes out; that's dry-matter basis, one short formula away. Comparing as-fed numbers across forms is the single most common label mistake.

What the panel can never tell you

Digestibility, amino-acid completeness, ingredient quality, sourcing — none of it appears in the guaranteed analysis. Two foods with identical panels can perform very differently. The panel is one pillar of a judgment, not the judgment: read it together with the ingredient list and the adequacy statement.

Bonus points for saying more

Some makers voluntarily publish a full typical analysis — actual measured values, including ash — rather than only the legal minimums. That's real transparency, and Bowlmark's transparency pillar credits it. When a label states more than the law requires, someone decided to show their work.