Lettuce
Lettuce might not be an ideal food if you’re looking for an adequate source of protein or fiber, but it contains a lot of nutrients and vitamins like iron, folate, Vitamin A, and C. Lettuce is extremely low in calories, providing just 10 to 20 calories, depending on the type of lettuce. It’s also filled with 92 percent water, which is why even if it’s not a protein-rich food, it can make you feel full for a prolonged period, especially when topped with the right foods like zucchini, chicken breast, egg, or tomatoes.

Lettuce
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