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A hand holding dried black beans over a heap of black beans

Find the amino acid your plate is missing.

80 out of 100 Lysine 94%

One number, and you can check the arithmetic.

80/100

The score is the worst-supplied essential amino acid on the plate, discounted for how well plant protein actually digests. Nothing is weighted by hand.

0.94 lysine × 0.85 × 100 = 80

score = (lowest amino acid ÷ its reference requirement) × digestibility × 100

1.00 = meets the reference requirement

Why six, not nine

Nine essential amino acids exist. Six decide the score: leucine, isoleucine, valine, lysine, methionine and tryptophan. The other three are rarely the constraint in a plant diet, so they stay out of the number.

Methionine and cysteine, together

Cysteine spares methionine, so the two are scored as one sulfur pool, the way the reference pattern defines it. Score them apart and every legume gets punished for a shortfall the body does not have.

Digestibility is a discount

Whole plant foods absorb less completely than isolates, so the score is multiplied by 0.80 to 0.95 depending on the plate — an all-high-fibre meal takes the biggest cut. It is why a plate can clear every amino target and still land in the eighties.

The fix is usually one ingredient.

Plates people actually eat, scored, each with the gap-closer the app returns for it.

  • Bowl of chickpeas, quinoa, spinach, avocado and roasted sweet potato
    88

    Chickpea and quinoa bowl

    150 g chickpeas · 150 g quinoa · 60 g spinach

    + 100 g tofu = 93

  • Chickpeas stewed in tomato sauce in a dark bowl
    72

    Chickpea curry

    250 g chickpeas · 100 g tomato

    + 25 g pumpkin seeds = 83

  • Yellow lentil dal in a copper pan on a red cloth
    72

    Red lentil dal

    250 g lentils · 100 g tomato

    + 100 g tofu = 86

  • Plate of brown rice with crumbled tempeh and a golden tempeh patty
    78

    Tempeh with brown rice

    150 g tempeh · 150 g brown rice

    + 100 g lentils = 83

Each fix is what the app’s recommender returns for that exact plate.

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