Amino Acid Protein Calculator

Enter foods to make sure you are getting all the essential amino acids.
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      Romaine Lettuce
      ×
      Iceberg Lettuce
      ×
      Green Leaf Lettuce
      ×
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      Quick Stats
      • Calories 23 1% DV
      • Protein 1.7g 3% DV
      • Carbs 4.7g 2% DV
      • Fat 0.3g 0% DV
      • Fiber 2g 8% DV
      • Sugar 2g 5% DV
      Amino Acid Bar Charts

      Total Recommended Daily Intake

      • Cystine 4% RDI 12mg
      • Histidine 3% RDI 24mg
      • Isoleucine 5% RDI 64mg
      • Leucine 3% RDI 82mg
      • Lysine 4% RDI 78mg
      • Methionine 2% RDI 16mg
      • Phenylalanine 8% RDI 67mg
      • Threonine 6% RDI 59mg
      • Tryptophan 5% RDI 14mg
      • Tyrosine 3% RDI 28mg
      • Valine 4% RDI 68mg
      Protein Comparison Table

      Table Legend

      1. Romaine Lettuce
      2. Iceberg Lettuce
      3. Green Leaf Lettuce
      -- = missing data
      Amino Acids
      Food # 1 2 3 Total
      Weight (g) 47 72 36 155
      Essential  
      Histidine (mg)
      (%RDI)
      10
      (1%)
      6
      (1%)
      8
      (1%)
      24
      (3%)
      Isoleucine (mg)
      (%RDI)
      21
      (2%)
      13
      (1%)
      30
      (2%)
      64
      (5%)
      Leucine (mg)
      (%RDI)
      36
      (1%)
      18
      (1%)
      28
      (1%)
      82
      (3%)
      Lysine (mg)
      (%RDI)
      30
      (1%)
      17
      (1%)
      30
      (1%)
      78
      (4%)
      Methionine (mg)
      (%RDI)
      7
      (1%)
      4
      (0%)
      6
      (1%)
      16
      (2%)
      Phenylalanine (mg)
      (%RDI)
      31
      (3%)
      17
      (2%)
      20
      (2%)
      67
      (8%)
      Threonine (mg)
      (%RDI)
      20
      (2%)
      18
      (2%)
      21
      (2%)
      59
      (6%)
      Tryptophan (mg)
      (%RDI)
      5
      (2%)
      6
      (2%)
      3
      (1%)
      14
      (5%)
      Valine (mg)
      (%RDI)
      26
      (1%)
      17
      (1%)
      25
      (1%)
      68
      (4%)
      Conditional  
      Arginine (mg) 25
      11
      26
      62
      Cystine (mg)
      (%RDI)
      3
      (1%)
      4
      (1%)
      6
      (2%)
      12
      (4%)
      Glycine (mg) 23
      11
      21
      54
      Proline (mg) 21
      7
      17
      46
      Tyrosine (mg)
      (%RDI)
      12
      (1%)
      5
      (1%)
      12
      (1%)
      28
      (3%)
      Non-Essential  
      Alanine (mg) 26
      18
      20
      64
      Aspartic acid (mg) 65
      90
      51
      206
      Betaine (mg) 0
      0
      0
      0
      Glutamic acid (mg) 84
      140
      66
      289
      Hydroxyproline (mg) --
      --
      --
      0
      Serine (mg) 24
      18
      14
      56
      Lysine to Arginine Ratio of All Selected Foods: 1.26
      Data Source
      Romaine Lettuce
      USDA Food Data Central Standard Release (Common)Omega-6 data was extrapolated from undifferentiated-Octadecadienoic Acid (18:2) acid.
      Iceberg Lettuce
      USDA Food Data Central Standard Release (Common)Omega-6 data was extrapolated from undifferentiated-Octadecadienoic Acid (18:2) acid.
      Green Leaf Lettuce
      USDA Food Data Central Standard Release (Common)Omega-6 data was extrapolated from undifferentiated-Octadecadienoic Acid (18:2) acid.