Cos Lettuce plants reached the West via Rome, which is usually in Italian called Romana lattuga and laitue Romaine (France), hence the name 'romaine' is a common term in American English. (Davidson)
Cos cultivars, also referred to as romaine, this plant has the form of elongated leaves, rough, and textured crunchy, with bone leaves the middle wide and clear. Long, rather narrow leaves usually grow upright and loosely overlap each other, and do not form heads. Properties after harvest with crisp head types.
Nutrient Content of the value of Cos Lettuce plants
- Romaine lettuce nutrient per 100 g (3.5 oz)Energy 72 kJ (17 kcal)
Carbohydrate 3.3 g
Dietary fiber 2.1 g
0.3 g fat
Protein 1.2 g
Water 95 g
Vitamin A equiv. 290 mg (32%)
Folate (Vit B9.) 136 mg (34%)
Vitamin C 24 mg (40%)
Calcium 33 mg (3%)
Iron 0.97 mg (8%)
Phosphorus 30 mg (4%)
Potassium 247 mg (5%)
Sources: USDA Nutrient database
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