- 59 commodities · 136 verified proteins
- k computed on oxidised mature chains
- Tier 1/2/3 reliability + sensitivity bounds
- PROTEIN_PCT cross-validated vs AFCD
- mode B: recipe → true protein (near-exact)
- mode A: label → allocated range (parser + priors)
- declared % = hard constraints
- 15 fixtures: Python ≡ JS (node-verified)
- USDA FDC branded: ingredient freq/position
- AFCD Release 3: Australian bands + N-factors
- band check prefers the AU reference
- sources cited per category