Sample generated 18 May 2026. Synthetic inputs run through the real validation engine and entity resolution; no scraped retailer or Open Food Facts data. See how we rank.
The validation engine, on synthetic data
This is a methodology demonstration, not a price comparison and not a list of offers. Synthetic products are run through the real ProteinRanking pipeline so you can see what it does: entity resolution merges duplicate listings into one canonical variant, and the validation engine rejects physically impossible label claims before anything is ranked. The table below is the evidence of what it accepted; the list further down is what it rejected. Ranking is determined solely by validated data, never by payment.
Accepted by the engine, then ranked (evidence)
| # | Product | Flavour | Category | Net | Protein/100g | Price | € / 100 g protein |
|---|---|---|---|---|---|---|---|
| 1 | NordPeak Whey Protein×2 merged | Chocolate | Whey concentrate | 2000 g | 78 g | €44.90 | €2.8782 |
| 2 | NordPeak Whey Protein | Vanilla | Whey concentrate | 1000 g | 76 g | €26.90 | €3.5395 |
| 3 | SlowCast Micellar Casein | Neutral | Casein | 1000 g | 78 g | €32.90 | €4.2179 |
| 4 | PlantPeak Vegan Protein | Vanilla | Vegan blend | 1000 g | 70 g | €34.90 | €4.9857 |
| 5 | PureForm Whey Isolate | Chocolate | Whey isolate | 900 g | 87 g | €39.90 | €5.0958 |
| 6 | ClearLab Clear Whey Isolate | Mango | Clear whey | 500 g | 80 g | €29.90 | €7.475 |
Rejected by the validation engine (this is the point)
- GlitchLabs Mega Whey Protein Strawberry 1000g, claims 273 g protein/100g → PROTEIN_INVALID
A real label error like this would silently corrupt a naive price comparison. Here it never reaches the ranking, and that is the product.
ILLUSTRATIVE SAMPLE DATA: fictional brands, synthetic prices & nutrition, run through the real ProteinRanking validation engine + entity resolution. Not live offers. No affiliate links. See home and privacy.