Every salad must start with the green stuff. You have a variety of greenery from which to choose, such as iceberg lettuce, romaine lettuce, and even spinach. Let's discuss the nutritional content of each:
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Iceberg lettuce: one cup contains five calories, one gram of protein, two milligrams of vitamin C, and 180 IU of vitamin A.
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Romaine lettuce: one cup has ten calories, one gram of protein, and a whopping ten milligrams of vitamin C. It also contains more vitamin A and fiber than iceberg lettuce.
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Spinach: one cup has ten calories, two grams of protein, and calcium, potassium, and vitamin C. Don't forget the color and crunch! Nutritionally speaking, spinach is your best choice.