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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Watermelon
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Cucumber, peeled, raw
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Number of Servings:
Note: Nutrient values are divided into 1 servings.
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  • Calories 67 4% DV
  • Protein 2.3g 2% DV
  • Carbs 16g 8% DV
  • Fat 0.6g 1% DV
  • Fiber 2.5g 10% DV
  • Sugar 12g 24% DV
  • Amino Acid Score 5%
  • Lysine / Arginine 1.01
Amino Acid Bar Charts

Total Recommended Daily Intake

  • Cystine 1% RDI 15mg
  • Histidine 3% RDI 22mg
  • Isoleucine 6% RDI 66mg
  • Leucine 4% RDI 97mg
  • Lysine 7% RDI 159mg
  • Methionine 3% RDI 32mg
  • Phenylalanine 5% RDI 95mg
  • Threonine 7% RDI 78mg
  • Tryptophan 9% RDI 25mg
  • Tyrosine 2% RDI 33mg
  • Valine 5% RDI 66mg
Protein Comparison Table

Table Legend

  1. Romaine Lettuce
  2. Watermelon
  3. Cucumber, peeled, raw
-- = missing data
Amino Acids
Food # 1 2 3 Total
Weight (g) 47 154 133 334
Essential  
Histidine (mg)
(%RDI)
10
(1%)
9
(1%)
3
(0%)
22
(3%)
Isoleucine (mg)
(%RDI)
21
(2%)
29
(3%)
16
(1%)
66
(6%)
Leucine (mg)
(%RDI)
36
(1%)
28
(1%)
33
(1%)
97
(4%)
Lysine (mg)
(%RDI)
30
(1%)
95
(4%)
33
(2%)
159
(7%)
Methionine (mg)
(%RDI)
7
(1%)
9
(1%)
16
(1%)
32
(3%)
Phenylalanine (mg)
(%RDI)
31
(2%)
23
(1%)
41
(2%)
95
(5%)
Threonine (mg)
(%RDI)
20
(2%)
42
(4%)
16
(1%)
78
(7%)
Tryptophan (mg)
(%RDI)
5
(2%)
11
(4%)
9
(3%)
25
(9%)
Valine (mg)
(%RDI)
26
(2%)
25
(2%)
16
(1%)
66
(5%)
Conditional  
Arginine (mg) 25
91
41
157
Cystine (mg)
(%RDI)
3
(0%)
3
(0%)
9
(1%)
15
(1%)
Glycine (mg) 23
15
33
72
Proline (mg) 21
37
16
74
Tyrosine (mg)
(%RDI)
12
(1%)
18
(1%)
3
(0%)
33
(2%)
Non-Essential  
Alanine (mg) 26
26
41
94
Aspartic acid (mg) 65
60
49
175
Betaine (mg) 0
0
0
1
Glutamic acid (mg) 84
97
271
452
Hydroxyproline (mg) --
--
--
0
Serine (mg) 24
25
33
81
Lysine to Arginine Ratio of All Selected Foods: 1.01
Data Source
Romaine Lettuce
USDA Food Data Central Standard Release (Common)Omega-6 data was extrapolated from undifferentiated-Octadecadienoic Acid (18:2) acid.
Watermelon
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.
Cucumber, peeled, raw
USDA Food Data Central Standard ReleaseOmega-6 data was extrapolated from undifferentiated-Octadecadienoic Acid (18:2) acid.Iodine data is obtained from the USDA Iodine database.