Amino Acid Protein Calculator

Enter foods to make sure you are getting all the essential amino acids.
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      Romaine Lettuce
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      Iceberg Lettuce
      ×
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      Quick Stats
      • Calories 18 1% DV
      • Protein 1.2g 2% DV
      • Carbs 3.7g 1% DV
      • Fat 0.2g 0% DV
      • Fiber 2g 7% DV
      • Sugar 2g 4% DV
      Amino Acid Bar Charts

      Total Recommended Daily Intake

      • Cystine 2% RDI 6mg
      • Histidine 2% RDI 16mg
      • Isoleucine 2% RDI 34mg
      • Leucine 2% RDI 54mg
      • Lysine 2% RDI 47mg
      • Methionine 1% RDI 11mg
      • Phenylalanine 5% RDI 47mg
      • Threonine 4% RDI 38mg
      • Tryptophan 4% RDI 11mg
      • Tyrosine 2% RDI 17mg
      • Valine 2% RDI 43mg
      Protein Comparison Table

      Table Legend

      1. Romaine Lettuce
      2. Iceberg Lettuce
      -- = missing data
      Amino Acids
      Food # 1 2 Total
      Weight (g) 47 72 119
      Essential  
      Histidine (mg)
      (%RDI)
      10
      (1%)
      6
      (1%)
      16
      (2%)
      Isoleucine (mg)
      (%RDI)
      21
      (2%)
      13
      (1%)
      34
      (2%)
      Leucine (mg)
      (%RDI)
      36
      (1%)
      18
      (1%)
      54
      (2%)
      Lysine (mg)
      (%RDI)
      30
      (1%)
      17
      (1%)
      47
      (2%)
      Methionine (mg)
      (%RDI)
      7
      (1%)
      4
      (0%)
      11
      (1%)
      Phenylalanine (mg)
      (%RDI)
      31
      (3%)
      17
      (2%)
      47
      (5%)
      Threonine (mg)
      (%RDI)
      20
      (2%)
      18
      (2%)
      38
      (4%)
      Tryptophan (mg)
      (%RDI)
      5
      (2%)
      6
      (2%)
      11
      (4%)
      Valine (mg)
      (%RDI)
      26
      (1%)
      17
      (1%)
      43
      (2%)
      Conditional  
      Arginine (mg) 25
      11
      36
      Cystine (mg)
      (%RDI)
      3
      (1%)
      4
      (1%)
      6
      (2%)
      Glycine (mg) 23
      11
      34
      Proline (mg) 21
      7
      28
      Tyrosine (mg)
      (%RDI)
      12
      (1%)
      5
      (1%)
      17
      (2%)
      Non-Essential  
      Alanine (mg) 26
      18
      44
      Aspartic acid (mg) 65
      90
      155
      Betaine (mg) 0
      0
      0
      Glutamic acid (mg) 84
      140
      223
      Hydroxyproline (mg) --
      --
      0
      Serine (mg) 24
      18
      42
      Lysine to Arginine Ratio of All Selected Foods: 1.31
      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.