Proper selection plays a vital role in ensuring that you are buying fresh vegetables. As far as lettuce is concerned, always prefer whole heads of lettuce over loose lettuce leaves as they are fresher and more nutritious. Also ensure that the leaves are crisp, tender and brightly colored. Lettuce can be best enjoyed if it is fresh and crisp. Dark green veggies are great sources of vitamin C, folate, betacarotene, iron, calcium, iron and dietary fiber. Therefore, try to look for dark colored leaves. Lettuce is delicious as long as it is fresh. While shopping for lettuce, you should avoid bunches that are limp, wilting, brownish or have rust, spots or holes on them.