Lets compare vitamin content per 1 kilogram of Butterhead Lettuce vs Romaine Lettuce:
Raw Butterhead Lettuce has 1.4 times more Vitamin E than Raw Cos Or Romaine Lettuce.
While Raw Cos Or Romaine Lettuce contain 2.6 times more Vitamin A, 1.3 times more Vitamin B1 and 1.9 times more Vitamin B9 than Raw Butterhead Lettuce.
Both Raw Butterhead Lettuce and Raw Cos Or Romaine Lettuce have similar amounts of Vitamin B2, Vitamin B3, Vitamin B5, Vitamin B6, Vitamin C and Vitamin K per 1 kg.
Both Raw Butterhead Lettuce as well as Raw Cos Or Romaine Lettuce have insufficient amounts of Vitamin B12 and Vitamin D in 1 kg.
Comparing minerals per 1 kilogram for Butterhead Lettuce vs Romaine Lettuce:
Raw Butterhead Lettuce has 1.3 times more Iron and 1.5 times more Selenium than Raw Cos Or Romaine Lettuce.
While Raw Cos Or Romaine Lettuce contain 3 times more Copper than Raw Butterhead Lettuce.
Both Raw Butterhead Lettuce and Raw Cos Or Romaine Lettuce have similar amounts of Calcium, Magnesium, Manganese, Phosphorus, Potassium, Zinc and Water per 1 kg.
Comparison of macro-nutrients per 1 kilogram:
Raw Cos Or Romaine Lettuce contain 1.4 times more Omega 3, 1.5 times more Carbohydrate, 1.3 times more Sugars, 1.6 times more Fructose and 1.9 times more Fiber than Raw Butterhead Lettuce.
Both Raw Butterhead Lettuce and Raw Cos Or Romaine Lettuce have similar amounts of Protein per 1 kg.
Both Raw Butterhead Lettuce as well as Raw Cos Or Romaine Lettuce have insufficient amounts of Energy, Fat, Omega 6, Cholesterol, Glucose and Sucrose in 1 kg.