Amino Acid Protein Calculator

Enter foods to make sure you are getting all the essential amino acids.
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Red Leaf Lettuce
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  • Calories 4 0% DV
  • Protein 0.4g 1% DV
  • Carbs 0.6g 0% DV
  • Fat 0.1g 0% DV
  • Fiber 0.3g 1% DV
  • Sugar 0.1g 0% DV
  • Amino Acid Score 1%
  • Lysine / Arginine 1.18
Amino Acid Bar Charts

Total Recommended Daily Intake

  • Cystine 1% RDI 3mg
  • Histidine 1% RDI 5mg
  • Isoleucine 1% RDI 11mg
  • Leucine 1% RDI 20mg
  • Lysine 1% RDI 13mg
  • Methionine 1% RDI 4mg
  • Phenylalanine 2% RDI 19mg
  • Threonine 1% RDI 13mg
  • Tryptophan 2% RDI 6mg
  • Tyrosine 1% RDI 8mg
  • Valine 1% RDI 13mg
Protein Comparison Table

Table Legend

  1. Red Leaf Lettuce
-- = missing data
Amino Acids
Food # 1 Total
Weight (g) 28 28
Essential  
Histidine (mg)
(%RDI)
5
(1%)
5
(1%)
Isoleucine (mg)
(%RDI)
11
(1%)
11
(1%)
Leucine (mg)
(%RDI)
20
(1%)
20
(1%)
Lysine (mg)
(%RDI)
13
(1%)
13
(1%)
Methionine (mg)
(%RDI)
4
(1%)
4
(1%)
Phenylalanine (mg)
(%RDI)
19
(2%)
19
(2%)
Threonine (mg)
(%RDI)
13
(1%)
13
(1%)
Tryptophan (mg)
(%RDI)
6
(2%)
6
(2%)
Valine (mg)
(%RDI)
13
(1%)
13
(1%)
Conditional  
Arginine (mg) 11
11
Cystine (mg)
(%RDI)
3
(1%)
3
(1%)
Glycine (mg) 13
13
Proline (mg) 11
11
Tyrosine (mg)
(%RDI)
8
(1%)
8
(1%)
Non-Essential  
Alanine (mg) 14
14
Aspartic acid (mg) 39
39
Betaine (mg) 0
0
Glutamic acid (mg) 43
43
Hydroxyproline (mg) --
0
Serine (mg) 12
12
Lysine to Arginine Ratio of All Selected Foods: 1.18
Data Source
Red Leaf Lettuce
USDA Food Data Central Standard Release (Common)Omega-6 data was extrapolated from undifferentiated-Octadecadienoic Acid (18:2) acid.