How big is a serving? What's the right kind of fat, and how can you find out if a food has it? Does your child need a vitamin supplement? When faced with the task of healthy menu-planning, a good education in the essentials is a must. So is the help of a qualified dietitian, a few good books, and even some software if you're so inclined. No one said getting into the healthy eating routine was going to be easy, but once you have the basics down you'll be navigating the nutritional jungle in no time.