Figuring out what to feed kids can be complicated and stressful. We are bombarded with advertisements and a plethora of food choices, not to mention the long and esoteric list of ingredients in packaged foods. It seems impossible to decipher the good from the bad. And not least of all, children between the ages of 18 to 24 months become extremely picky eaters. But healthy eating, argues food writer Michael Pollan in his book "Food Rules", can be made simple: Eat real foods. Mostly plants. Not too much. Follow these parenting tips for helping your children eat healthfully.