Lettuce, cos or romaine, raw: amino acid profile
raw · USDA SR Legacy, FDC ID 169247 (Vegetables and Vegetable Products)
How much protein and leucine does it contain?
Per 100 g, Lettuce, cos or romaine, raw provides 1.2 g protein and 0.08 g leucine. Use the listed preparation when comparing portions.
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The first column of amounts is per 100 g of food; the second compares the composition of the protein itself.
| Amino acid | g / 100 g | g / 100 g protein |
|---|---|---|
| Leucine Essential (BCAA) | 0.08 | 6.2 |
| Isoleucine Essential (BCAA) | 0.04 | 3.7 |
| Valine Essential (BCAA) | 0.06 | 4.5 |
| Lysine Essential | 0.06 | 5.2 |
| Threonine Essential | 0.04 | 3.5 |
| Phenylalanine Essential | 0.07 | 5.3 |
| Methionine Essential | 0.01 | 1.2 |
| Histidine Essential | 0.02 | 1.7 |
| Tryptophan Essential | 0.01 | 0.8 |
| Glutamic acid Non-essential | 0.18 | 14.5 |
| Aspartic acid Non-essential | 0.14 | 11.3 |
| Proline Non-essential | 0.04 | 3.7 |
| Alanine Non-essential | 0.06 | 4.6 |
| Serine Non-essential | 0.05 | 4.1 |
| Tyrosine Non-essential | 0.03 | 2.0 |
| Arginine Non-essential | 0.05 | 4.4 |
| Cysteine Non-essential | 0.01 | 0.5 |
| Glycine Non-essential | 0.05 | 4.0 |
What do these numbers mean? Read the guide →
By Logan King and Dr Paul T Morgan, Senior Lecturer in Human Nutrition and Metabolism, Manchester Metropolitan University.
Amino acid score compares this food's scarcest essential amino acid with the WHO/FAO/UNU 2007 adult pattern; 100%+ means every essential amino acid is carried in good proportion. Data: USDA SR Legacy, FDC ID 169247 (Vegetables and Vegetable Products). Educational reference, not medical advice.