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.

Substitute for Collard Greens

Published Jul,08 2011 | By Christine Garvin

Collard greens are a healthy food chock full of vitamins, minerals and fiber. They help lower cholesterol and detoxify the liver, according to Dr. Kevin Weiland in his book, "The Dakota Diet: Health Secrets from the Great Plains."