Amino Acid Protein Calculator
Enter foods to make sure you are getting all the essential amino acids.
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      Iceberg Lettuce
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      Quick Stats
      • Calories 10 1% DV
      • Protein 0.6g 1% DV
      • Carbs 2.1g 1% DV
      • Fat 0.1g 0% DV
      • Fiber 1g 3% DV
      • Sugar 1g 3% DV
      Amino Acid Bar Charts

      Total Recommended Daily Intake

      • Cystine 1% RDI 4mg
      • Histidine 1% RDI 6mg
      • Isoleucine 1% RDI 13mg
      • Leucine 1% RDI 18mg
      • Lysine 1% RDI 17mg
      • Methionine 0% RDI 4mg
      • Phenylalanine 2% RDI 17mg
      • Threonine 2% RDI 18mg
      • Tryptophan 2% RDI 6mg
      • Tyrosine 1% RDI 5mg
      • Valine 1% RDI 17mg
      Protein Comparison Table

      Table Legend

      1. Iceberg Lettuce
      -- = missing data
      Amino Acids
      Food # 1 Total
      Weight (g) 72 72
      Essential  
      Histidine (mg)
      (%RDI)      		 6
      (1%)      		 6
      (1%)
      Isoleucine (mg)
      (%RDI)      		 13
      (1%)      		 13
      (1%)
      Leucine (mg)
      (%RDI)      		 18
      (1%)      		 18
      (1%)
      Lysine (mg)
      (%RDI)      		 17
      (1%)      		 17
      (1%)
      Methionine (mg)
      (%RDI)      		 4
      (0%)      		 4
      (0%)
      Phenylalanine (mg)
      (%RDI)      		 17
      (2%)      		 17
      (2%)
      Threonine (mg)
      (%RDI)      		 18
      (2%)      		 18
      (2%)
      Tryptophan (mg)
      (%RDI)      		 6
      (2%)      		 6
      (2%)
      Valine (mg)
      (%RDI)      		 17
      (1%)      		 17
      (1%)
      Conditional  
      Arginine (mg) 11
      		11
      Cystine (mg)
      (%RDI)      		 4
      (1%)      		 4
      (1%)
      Glycine (mg) 11
      		11
      Proline (mg) 7
      		7
      Tyrosine (mg)
      (%RDI)      		 5
      (1%)      		 5
      (1%)
      Non-Essential  
      Alanine (mg) 18
      		18
      Aspartic acid (mg) 90
      		90
      Betaine (mg) 0
      		0
      Glutamic acid (mg) 140
      		140
      Hydroxyproline (mg) --
      		0
      Serine (mg) 18
      		18
      Lysine to Arginine Ratio of All Selected Foods: 1.55
      Data Source
      Iceberg Lettuce
      USDA Food Data Central Standard Release (Common)Omega-6 data was extrapolated from undifferentiated-Octadecadienoic Acid (18:2) acid.