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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Note: Nutrient values are divided into 1 servings.
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  • Calories 14 1% DV
  • Protein 0.9g 2% DV
  • Carbs 3g 1% DV
  • Fat 0.1g 0% DV
  • Fiber 1.2g 4% DV
  • Sugar 2g 4% DV
  • Amino Acid Score 2%
  • Lysine / Arginine 1.6
Amino Acid Bar Charts

Total Recommended Daily Intake

  • Cystine 2% RDI 5mg
  • Histidine 1% RDI 9mg
  • Isoleucine 1% RDI 18mg
  • Leucine 1% RDI 25mg
  • Lysine 1% RDI 24mg
  • Methionine 1% RDI 5mg
  • Phenylalanine 3% RDI 23mg
  • Threonine 2% RDI 25mg
  • Tryptophan 3% RDI 9mg
  • Tyrosine 1% RDI 7mg
  • Valine 1% RDI 24mg
Protein Comparison Table

Table Legend

  1. Iceberg Lettuce
-- = missing data
Amino Acids
Food # 1 Total
Weight (g) 100 100
Essential  
Histidine (mg)
(%RDI)		 9
(1%)		 9
(1%)
Isoleucine (mg)
(%RDI)		 18
(1%)		 18
(1%)
Leucine (mg)
(%RDI)		 25
(1%)		 25
(1%)
Lysine (mg)
(%RDI)		 24
(1%)		 24
(1%)
Methionine (mg)
(%RDI)		 5
(1%)		 5
(1%)
Phenylalanine (mg)
(%RDI)		 23
(3%)		 23
(3%)
Threonine (mg)
(%RDI)		 25
(2%)		 25
(2%)
Tryptophan (mg)
(%RDI)		 9
(3%)		 9
(3%)
Valine (mg)
(%RDI)		 24
(1%)		 24
(1%)
Conditional  
Arginine (mg) 15
15
Cystine (mg)
(%RDI)		 5
(2%)		 5
(2%)
Glycine (mg) 15
15
Proline (mg) 10
10
Tyrosine (mg)
(%RDI)		 7
(1%)		 7
(1%)
Non-Essential  
Alanine (mg) 25
25
Aspartic acid (mg) 125
125
Betaine (mg) 0
0
Glutamic acid (mg) 194
194
Hydroxyproline (mg) --
0
Serine (mg) 25
25
Lysine to Arginine Ratio of All Selected Foods: 1.6
Data Source
Iceberg Lettuce
USDA Food Data Central Standard Release (Common)Omega-6 data was extrapolated from undifferentiated-Octadecadienoic Acid (18:2) acid.Iodine data is obtained from the USDA Iodine database.