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Iceberg lettuce is an option on salad bars in the Lawrence school district. What is the nutritional value of iceberg lettuce?

Here is a one-cup serving comparison of iceberg lettuce with romaine lettuce, according to the United States Department of Agriculture:

Iceberg lettuce - 52.6 grams water, 0.5 grams protein, 1.63 grams carbohydrates, 0.7 grams fiber, 0.97 grams sugar, 0.23 milligrams iron, 14 micrograms Vitamin A, 0.1 milligrams Vitamin E and 13.3 micrograms Vitamin K. Romaine lettuce - 28.04 grams water, 0.42 grams protein, 1.13 grams carbohydrates, 0.9 grams fiber, 0.21 grams sugar, 0.27 milligrams iron, 68 micrograms Vitamin A, 0.28 milligrams Vitamin E and 63.1 micrograms Vitamin K.


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