Summary:
                    
A complete protein is a protein source that "contains adequate proportions of the nine essential amino acids" that our body can not produce on its own.
                      Relatively low in protein, a single cup of grapes contains 1.1 grams of protein, or about 2% of recommended daily values. [1]
 To get the adequate amount of protein with grapes alone, you will need 46 cups of grapes (6940 grams) for an average female, or 55 cups of grapes for males. [4] That's over 4790 calories, and a lot of grape! Pairing grape with a richer protein source is a good idea.
                      
                      
                        Full nutritional profile for grapes 
                        
                        USDA Source: Grapes, red or green (European type, such as Thompson seedless), raw
                    
Macronutrients in 1 cup (151g) of grapes:
| % of RDV | Amount | ||
| Calories |  | 5.2% | 104 kCal | 
| Carbohydrates |  | 0% | - | 
| Total fat |  | 0.4% | 0.2 grams | 
| Protein |  | 2.2% | 1.1 grams | 
                    Proportionally, grape does contain abundant amounts of 3 out of the nine essential amino acids.  However, grape is a little short on isoleucine, leucine, lysine, methionine, phenylalanine and valine.[1]
To have adequate amounts of all nine essential amino acids with grape alone, you will have to eat 63 cups of grapes (9556 grams) for an average person. [2]
That's about 38% more grape to compensate for the lack of isoleucine, leucine, lysine, methionine, phenylalanine and valine, compared to the protein requirement alone.
                  
The amount of each essential amino acid in 1 cup (151g) of grapes:
| Amino Acid | % of RDV [2] | Amount [1] | Complete / Adequate | |
| Protein |  | 2.2% | 1.087g | |
| Histidine |  | 5.3% | 0.033g | |
| Isoleucine |  | 1.9% | 0.017g | |
| Leucine |  | 1.8% | 0.033g | |
| Lysine |  | 2.4% | 0.041g | |
| Methionine |  | 1.6% | 0.014g | |
| Phenylalanine |  | 1.9% | 0.029g | |
| Threonine |  | 3.7% | 0.033g | |
| Tryptophan |  | 6.4% | 0.017g | |
| Valine |  | 3.1% | 0.033g | 
 
                          
                      
                                               
                          
                          
                                              
                      Low in protein, carrot is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  which is complementary to grape. 
A ratio of 2.5 cups of grapes (378g) and 2.6 carrots (188g) creates a complete protein profile. In fact, any ratio of more than 0.5:1 of carrot to grape will be complete. 
                      
                      
                        Full nutritional profile for carrots 
                        USDA Source: Carrots, raw
                    
| Amino Acid | % of RDV [2] | Amount [5] | Complete / Adequate | |
| Protein |  | 8.9% | 4.5g | |
| Histidine |  | 25.1% | 0.16g | |
| Isoleucine |  | 21.6% | 0.19g | |
| Leucine |  | 14.5% | 0.27g | |
| Lysine |  | 17.1% | 0.29g | |
| Methionine |  | 8.3% | 0.07g | |
| Phenylalanine |  | 12.5% | 0.19g | |
| Threonine |  | 49.1% | 0.44g | |
| Tryptophan |  | 24.6% | 0.06g | |
| Valine |  | 19.7% | 0.21g | 
 
                          
                      
                                               
                          
                          
                                              
                      Pumpkin seed is a reasonable source of supplementary protein, and  is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  complementing the profile of grape. 
For example, 3.3 cups of grapes (503g) and 0.3 cup of pumpkin seeds (22g) make a complete amino acids profile. The entire range to create a complete protein are ratios of 1:0.04 to 1:13 for grape to pumpkin seed by weight. 
                      
                      
                        Full nutritional profile for pumpkin seeds 
                        USDA Source: Seeds, pumpkin and squash seeds, whole, roasted, without salt
                    
| Amino Acid | % of RDV [2] | Amount [6] | Complete / Adequate | |
| Protein |  | 15.4% | 7.7g | |
| Histidine |  | 35.5% | 0.22g | |
| Isoleucine |  | 30.7% | 0.26g | |
| Leucine |  | 24% | 0.45g | |
| Lysine |  | 25.6% | 0.44g | |
| Methionine |  | 15.9% | 0.14g | |
| Phenylalanine |  | 20% | 0.3g | |
| Threonine |  | 28.9% | 0.26g | |
| Tryptophan |  | 48.7% | 0.13g | |
| Valine |  | 40.4% | 0.44g | 
 
                          
                      
                                               
                          
                          
                                              
                      A reasonable source of supplementary protein, hedge mustard seed is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  which is complementary to grape. 
A ratio of 3.3 cups of grapes (503g) and 0.3 cup of hedge mustard seeds (20g) creates a complete protein profile. The entire range to create a complete protein are ratios of 1:0.04 to 1:12 for grape to hedge mustard seed by weight. 
                      
                      
                        Full nutritional profile for hedge mustard seeds 
                        USDA Source: Seeds, sisymbrium sp. seeds, whole, dried
                    
| Amino Acid | % of RDV [2] | Amount [7] | Complete / Adequate | |
| Protein |  | 12.1% | 6.1g | |
| Histidine |  | 28% | 0.18g | |
| Isoleucine |  | 21.6% | 0.19g | |
| Leucine |  | 19% | 0.36g | |
| Lysine |  | 17.4% | 0.3g | |
| Methionine |  | 12.5% | 0.11g | |
| Phenylalanine |  | 14.3% | 0.21g | |
| Threonine |  | 27.7% | 0.25g | |
| Tryptophan |  | 41.9% | 0.11g | |
| Valine |  | 23.4% | 0.25g | 
 
                          
                      
                                               
                          
                          
                                              
                      Chia seed is a reasonable source of supplementary protein, and  is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  complementing the profile of grape. 
For example, 2.5 cups of grapes (378g) and 0.7 ounce of chia seeds (20g) make a complete amino acids profile. The entire range to create a complete protein are ratios of 1:0.05 to 1:21 for grape to chia seed by weight. 
                      
                      
                        Full nutritional profile for chia seeds 
                        USDA Source: Seeds, chia seeds, dried
                    
| Amino Acid | % of RDV [2] | Amount [8] | Complete / Adequate | |
| Protein |  | 12% | 6g | |
| Histidine |  | 29.8% | 0.19g | |
| Isoleucine |  | 23.2% | 0.2g | |
| Leucine |  | 18.7% | 0.35g | |
| Lysine |  | 17.2% | 0.29g | |
| Methionine |  | 17.5% | 0.15g | |
| Phenylalanine |  | 18.3% | 0.27g | |
| Threonine |  | 24.8% | 0.22g | |
| Tryptophan |  | 49.1% | 0.13g | |
| Valine |  | 25.1% | 0.27g | 
 
                          
                      
                                               
                          
                          
                                              
                      A great source of protein, spirulina is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  which is complementary to grape. 
A ratio of 3.3 cups of grapes (503g) and 1 tablespoon of spirulina (7g) creates a complete protein profile. The entire range to create a complete protein are ratios of 1:0.01 to 1:4 for grape to spirulina by weight. 
                      
                      
                        Full nutritional profile for spirulina 
                        USDA Source: Seaweed, spirulina, dried
                    
| Amino Acid | % of RDV [2] | Amount [9] | Complete / Adequate | |
| Protein |  | 14.9% | 7.5g | |
| Histidine |  | 29.1% | 0.18g | |
| Isoleucine |  | 31.4% | 0.27g | |
| Leucine |  | 23.4% | 0.44g | |
| Lysine |  | 19.8% | 0.34g | |
| Methionine |  | 14.2% | 0.12g | |
| Phenylalanine |  | 18.9% | 0.28g | |
| Threonine |  | 34.4% | 0.31g | |
| Tryptophan |  | 45.2% | 0.12g | |
| Valine |  | 32% | 0.35g | 
 
                          
                      
                                               
                          
                          
                                              
                      Lotus seed is a reasonable source of supplementary protein, and  is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  complementing the profile of grape. 
For example, 2 cups of grapes (302g) and 1.2 cups of lotus seeds (38g) make a complete amino acids profile. In fact, any ratio of more than 0.13:1 of lotus seed to grape will be complete. 
                      
                      
                        Full nutritional profile for lotus seeds 
                        USDA Source: Seeds, lotus seeds, dried
                    
| Amino Acid | % of RDV [2] | Amount [10] | Complete / Adequate | |
| Protein |  | 16.2% | 8.1g | |
| Histidine |  | 36.7% | 0.23g | |
| Isoleucine |  | 38% | 0.33g | |
| Leucine |  | 28.2% | 0.53g | |
| Lysine |  | 26.9% | 0.46g | |
| Methionine |  | 15.1% | 0.13g | |
| Phenylalanine |  | 23.6% | 0.35g | |
| Threonine |  | 39.2% | 0.35g | |
| Tryptophan |  | 45.3% | 0.12g | |
| Valine |  | 41.4% | 0.45g | 
 
                          
                      
                                               
                          
                          
                                              
                      A great source of protein, dijon mustard is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  which is complementary to grape. 
A ratio of 3.3 cups of grapes (503g) and 3.3 tablespoons of dijon mustard (20g) creates a complete protein profile. The entire range to create a complete protein are ratios of 1:0.04 to 1:12 for grape to dijon mustard by weight. 
                      
                      
                        Full nutritional profile for dijon mustard 
                        USDA Source: Spices, mustard seed, ground
                    
| Amino Acid | % of RDV [2] | Amount [11] | Complete / Adequate | |
| Protein |  | 17.5% | 8.7g | |
| Histidine |  | 45% | 0.28g | |
| Isoleucine |  | 33.5% | 0.29g | |
| Leucine |  | 27.5% | 0.52g | |
| Lysine |  | 29.1% | 0.5g | |
| Methionine |  | 16.3% | 0.14g | |
| Phenylalanine |  | 21.9% | 0.33g | |
| Threonine |  | 30.6% | 0.28g | |
| Tryptophan |  | 40.6% | 0.11g | |
| Valine |  | 37.7% | 0.41g | 
 
                          
                      
                                               
                          
                          
                                              
                      Pistachio is a great source of protein, and  is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  complementing the profile of grape. 
For example, 2.5 cups of grapes (378g) and 3.3 tablespoons of pistachio (25g) make a complete amino acids profile. The entire range to create a complete protein are ratios of 1:0.07 to 1:27 for grape to pistachio by weight. 
                      
                      
                        Full nutritional profile for pistachio 
                        USDA Source: Nuts, pistachio nuts, dry roasted, without salt added
                    
| Amino Acid | % of RDV [2] | Amount [12] | Complete / Adequate | |
| Protein |  | 16.1% | 8.1g | |
| Histidine |  | 34.7% | 0.22g | |
| Isoleucine |  | 33.1% | 0.28g | |
| Leucine |  | 26.9% | 0.51g | |
| Lysine |  | 23.6% | 0.4g | |
| Methionine |  | 15% | 0.13g | |
| Phenylalanine |  | 24.2% | 0.36g | |
| Threonine |  | 29.3% | 0.26g | |
| Tryptophan |  | 41.4% | 0.11g | |
| Valine |  | 38.3% | 0.41g | 
 
                          
                      
                                               
                          
                          
                                              
                      A reasonable source of supplementary protein, spinach is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  which is complementary to grape. 
A ratio of 3.3 cups of grapes (503g) and 6.4 cups of spinach (192g) creates a complete protein profile. In fact, any ratio of more than 0.38:1 of spinach to grape will be complete. 
                      
                      
                        Full nutritional profile for spinach 
                        USDA Source: Spinach, raw
                    
| Amino Acid | % of RDV [2] | Amount [13] | Complete / Adequate | |
| Protein |  | 18.2% | 9.1g | |
| Histidine |  | 37.1% | 0.23g | |
| Isoleucine |  | 39.2% | 0.34g | |
| Leucine |  | 28.5% | 0.54g | |
| Lysine |  | 27.4% | 0.47g | |
| Methionine |  | 17.1% | 0.15g | |
| Phenylalanine |  | 23% | 0.34g | |
| Threonine |  | 38.3% | 0.34g | |
| Tryptophan |  | 50% | 0.13g | |
| Valine |  | 38.8% | 0.42g | 
 
                          
                      
                                               
                          
                          
                                              
                      Cashew is a reasonable source of supplementary protein, and  is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  complementing the profile of grape. 
For example, 2.5 cups of grapes (378g) and 0.7 ounce of cashews (20g) make a complete amino acids profile. The entire range to create a complete protein are ratios of 1:0.05 to 1:21 for grape to cashew by weight. 
                      
                      
                        Full nutritional profile for cashews 
                        USDA Source: Nuts, cashew nuts, raw
                    
| Amino Acid | % of RDV [2] | Amount [14] | Complete / Adequate | |
| Protein |  | 12.6% | 6.3g | |
| Histidine |  | 27.4% | 0.17g | |
| Isoleucine |  | 22.9% | 0.2g | |
| Leucine |  | 19.7% | 0.37g | |
| Lysine |  | 16.6% | 0.28g | |
| Methionine |  | 12.2% | 0.11g | |
| Phenylalanine |  | 17.4% | 0.26g | |
| Threonine |  | 24.3% | 0.22g | |
| Tryptophan |  | 37.7% | 0.1g | |
| Valine |  | 27.6% | 0.3g | 
 
                          
                      
                                               
                          
                          
                                              
                      A reasonable source of supplementary protein, crimini mushroom is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  which is complementary to grape. 
A ratio of 0.4 cup of grapes (58g) and 2.5 cups of crimini mushroom (218g) creates a complete protein profile. In fact, any ratio of more than 4:1 of crimini mushroom to grape will be complete. 
                      
                      
                        Full nutritional profile for crimini mushroom 
                        USDA Source: Mushrooms, brown, italian, or crimini, raw
                    
| Amino Acid | % of RDV [2] | Amount [15] | Complete / Adequate | |
| Protein |  | 11.8% | 5.9g | |
| Histidine |  | 25.3% | 0.16g | |
| Isoleucine |  | 25.9% | 0.22g | |
| Leucine |  | 18.4% | 0.35g | |
| Lysine |  | 33.1% | 0.57g | |
| Methionine |  | 12.8% | 0.11g | |
| Phenylalanine |  | 15% | 0.22g | |
| Threonine |  | 28.8% | 0.26g | |
| Tryptophan |  | 49.5% | 0.13g | |
| Valine |  | 24.4% | 0.26g | 
 
                          
                      
                                               
                          
                          
                                              
                      Sour cream is a reasonable source of supplementary protein, and  is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  complementing the profile of grape. 
For example, 5 cups of grapes (755g) and 0.5 cup of sour cream (90g) make a complete amino acids profile. The entire range to create a complete protein are ratios of 1:0.12 to 1:24 for grape to sour cream by weight. 
                      
                      
                        Full nutritional profile for sour cream 
                        USDA Source: Cream, sour, cultured
                    
| Amino Acid | % of RDV [2] | Amount [16] | Complete / Adequate | |
| Protein |  | 15.3% | 7.6g | |
| Histidine |  | 39.5% | 0.25g | |
| Isoleucine |  | 26.7% | 0.23g | |
| Leucine |  | 24.1% | 0.46g | |
| Lysine |  | 26.4% | 0.45g | |
| Methionine |  | 16.1% | 0.14g | |
| Phenylalanine |  | 19.1% | 0.28g | |
| Threonine |  | 32.7% | 0.29g | |
| Tryptophan |  | 46.5% | 0.12g | |
| Valine |  | 31.6% | 0.34g | 
 
                          
                      
                                               
                          
                          
                                              
                      Low in protein, caramel is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  which is complementary to grape. 
A ratio of 5 cups of grapes (755g) and 0.7 cup of caramel (215g) creates a complete protein profile. The entire range to create a complete protein are ratios of 1:0.28 to 1:0.02 for grape to caramel by weight. 
                      
                      
                        Full nutritional profile for caramel 
                        USDA Source: Toppings, butterscotch or caramel
                    
| Amino Acid | % of RDV [2] | Amount [17] | Complete / Adequate | |
| Protein |  | 16.1% | 8g | |
| Histidine |  | 40% | 0.25g | |
| Isoleucine |  | 31.9% | 0.27g | |
| Leucine |  | 25.2% | 0.48g | |
| Lysine |  | 26.6% | 0.46g | |
| Methionine |  | 17.2% | 0.15g | |
| Phenylalanine |  | 19.9% | 0.3g | |
| Threonine |  | 34.2% | 0.31g | |
| Tryptophan |  | 31.9% | 0.08g | |
| Valine |  | 34.9% | 0.38g | 
 
                          
                      
                                               
                          
                          
                                              
                      Mayonnaise is low in protein, and  is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  complementing the profile of grape. 
For example, 3.3 cups of grapes (503g) and 1.2 cups of mayonnaise (271g) make a complete amino acids profile. In fact, any ratio of more than 0.5:1 of mayonnaise to grape will be complete. 
                      
                      
                        Full nutritional profile for mayonnaise 
                        USDA Source: Salad dressing, mayonnaise, regular
                    
| Amino Acid | % of RDV [2] | Amount [18] | Complete / Adequate | |
| Protein |  | 12.5% | 6.2g | |
| Histidine |  | 28.8% | 0.18g | |
| Isoleucine |  | 26.9% | 0.23g | |
| Leucine |  | 19.5% | 0.37g | |
| Lysine |  | 19.4% | 0.33g | |
| Methionine |  | 16.3% | 0.14g | |
| Phenylalanine |  | 16.8% | 0.25g | |
| Threonine |  | 28.9% | 0.26g | |
| Tryptophan |  | 39% | 0.1g | |
| Valine |  | 28.8% | 0.31g | 
 
                          
                      
                                               
                          
                          
                                              
                      A reasonable source of supplementary protein, yogurt is high in isoleucine, leucine, lysine, methionine, phenylalanine and valine,  which is complementary to grape. 
A ratio of 5 cups of grapes (755g) and 0.4 cup of yogurt (107g) creates a complete protein profile. The entire range to create a complete protein are ratios of 1:0.14 to 1:0.17 for grape to yogurt by weight. 
                      
                      
                        Full nutritional profile for yogurt 
                        USDA Source: Yogurt, plain, whole milk
                    
| Amino Acid | % of RDV [2] | Amount [19] | Complete / Adequate | |
| Protein |  | 18.3% | 9.2g | |
| Histidine |  | 41% | 0.26g | |
| Isoleucine |  | 33.3% | 0.29g | |
| Leucine |  | 28.7% | 0.54g | |
| Lysine |  | 31.5% | 0.54g | |
| Methionine |  | 20.6% | 0.18g | |
| Phenylalanine |  | 23.3% | 0.35g | |
| Threonine |  | 35.4% | 0.32g | |
| Tryptophan |  | 40.3% | 0.1g | |
| Valine |  | 43.9% | 0.47g |