Is this food actually high protein?
Calculate the protein in any food or meal: enter its calories and protein grams and get an instant Platinum / Gold / Silver / Avoid tier — the answer to whether it's actually high-protein, or just marketed that way.
Enter calories and protein grams. Get an instant Platinum / Gold / Silver / Avoid tier, grams per 100 calories, estimated leucine, and a protein-quality verdict — no signup, no tracking.
- Instant Platinum / Gold / Silver / Avoid rating
- Estimated leucine + MPS-trigger check
- Protein-quality verdict (Complete / Complementary / Incomplete)
Frequently asked questions
How do you calculate protein in food?
Read the calories and protein grams off the nutrition label (or add them up across ingredients for a homemade dish), then enter both into the calculator above. It converts protein grams to protein calories (grams × 4), divides by total calories, and returns that food's Protein Density — the share of its calories that actually come from protein — plus its tier and an estimated leucine total.
How do I calculate the protein in a meal?
Add up the calories and protein grams across every component of the meal — protein source, sides, sauce, everything — then enter the two totals as if the whole plate were one food. The calculator scores the meal as a whole, which is what matters: a protein-dense main can still end up a low-density meal once high-calorie sides are added in.
What counts as a high-protein food?
A high-protein food reaches Gold tier or better. Gold: High efficiency — 25–39% of calories from protein. Greek yogurt, chicken breast, most protein bars. Platinum: Elite efficiency — 40%+ of calories from protein. Lean meat, whey isolate, low-fat dairy. Many foods marketed as "high protein" (granola bars, peanut butter, mass-gainer shakes) actually land in the Avoid tier: Marketing-only "high protein" — under 15% of calories from protein. Calorie-dense, protein-light.
How is the tier calculated?
We compute Protein Density = (protein grams × 4 kcal) ÷ total kcal × 100, then place it into one of four tiers: Platinum, Gold, Silver, or Avoid. See the methodology page for the exact thresholds, rationale, and references.
What is leucine and why does this calculator estimate it?
Leucine is the amino acid that triggers muscle protein synthesis (MPS). About 2.5g leucine per meal is the practical minimum to fully stimulate MPS (Norton & Layman 2006; Witard et al. 2014). We estimate leucine as a percentage of the protein based on the source (whey ~10.5%, dairy ~9.5%, egg ~8.5%, meat ~8%, plant proteins 7–8.2%, collagen ~2.5%) — all from USDA amino acid reference profiles.
Why does collagen show "Incomplete — does not count"?
Collagen has zero tryptophan and DIAAS ≈ 0, so it cannot legally count toward label %DV protein. Leucine-matched RCTs show it does not raise muscle protein synthesis (Oikawa 2020; Aussieker & van Loon 2023). Honest framing: count its calories, not its grams, toward your muscle-protein target. More on the /collagen page.
Can I rate a whole meal or recipe?
Yes — just enter the totals. Add up the calories and protein grams across all ingredients (or use the totals at the bottom of a recipe), then enter both numbers. The tier, leucine estimate, and protein-quality verdict will reflect the meal as a whole.
Want more?
Use the protein intake calculator to set your daily target, protein-per-dollar to compare sources by cost, or browse the snack database for rated packaged options.
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