Leafy Greens Guide: Kale, Spinach & Lettuce Nutrition

Leafy greens like kale, spinach, and watercress provide high levels of calcium and vitamins. From washing collard greens to understanding the nutritional value of mesclun vs. romaine, master the storage and preparation of your favorite salad greens.

Vitamins in Iceberg Lettuce

Published Jul,08 2011 | By Anne Tourney

Iceberg lettuce can be a crisp, refreshing addition to salads or sandwiches, though its nutritional content pales next to its dark-green relatives. Darker lettuces like romaine and red leaf are richer in vitamin A, beta-carotene and other nutrients than iceberg.