Amino Acid Protein Calculator
Enter foods to make sure you are getting all the essential amino acids.
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Grapefruit
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  • Calories 74 4% DV
  • Protein 1.4g 3% DV
  • Carbs 19g 7% DV
  • Fat 0.2g 0% DV
  • Fiber 2.5g 9% DV
  • Sugar 16g 32% DV
  • Amino Acid Score 3%
  • Lysine / Arginine 0.23
Amino Acid Bar Charts

Total Recommended Daily Intake

  • Cystine 5% RDI 14mg
  • Histidine 2% RDI 14mg
  • Isoleucine 1% RDI 16mg
  • Leucine 1% RDI 28mg
  • Lysine 2% RDI 37mg
  • Methionine 2% RDI 14mg
  • Phenylalanine 10% RDI 87mg
  • Threonine 2% RDI 25mg
  • Tryptophan 5% RDI 14mg
  • Tyrosine 2% RDI 14mg
  • Valine 2% RDI 28mg
Protein Comparison Table

Table Legend

  1. Grapefruit
-- = missing data
Amino Acids
Food # 1 Total
Weight (g) 230 230
Essential  
Histidine (mg)
(%RDI)		 14
(2%)		 14
(2%)
Isoleucine (mg)
(%RDI)		 16
(1%)		 16
(1%)
Leucine (mg)
(%RDI)		 28
(1%)		 28
(1%)
Lysine (mg)
(%RDI)		 37
(2%)		 37
(2%)
Methionine (mg)
(%RDI)		 14
(2%)		 14
(2%)
Phenylalanine (mg)
(%RDI)		 87
(10%)		 87
(10%)
Threonine (mg)
(%RDI)		 25
(2%)		 25
(2%)
Tryptophan (mg)
(%RDI)		 14
(5%)		 14
(5%)
Valine (mg)
(%RDI)		 28
(2%)		 28
(2%)
Conditional  
Arginine (mg) 161
161
Cystine (mg)
(%RDI)		 14
(5%)		 14
(5%)
Glycine (mg) 28
28
Proline (mg) 117
117
Tyrosine (mg)
(%RDI)		 14
(2%)		 14
(2%)
Non-Essential  
Alanine (mg) 46
46
Aspartic acid (mg) 255
255
Betaine (mg) --
0
Glutamic acid (mg) 368
368
Hydroxyproline (mg) --
0
Serine (mg) 51
51
Lysine to Arginine Ratio of All Selected Foods: 0.23
Data Source
Grapefruit
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.