When life gets stressful and busy, convenient processed foods can be an easy fix. If you’re already late for work and your teen is scrambling to get out the door in the morning, frozen waffles or fruit loops are suddenly much more realistic than scrambled eggs and fruit. When you’re exhausted coming home from work, it can feel impossible to do anything more than throw some pizza rolls in the oven for the kids and pour yourself a glass of wine.But these processed foods aren't just slightly bad for your health–they can be downright poisonous for you and your family. The refined sugars and lack of nutritional benefits in these convenience foods causes serious damage to the digestive system and contributes to the  development of metabolic diseases like heart disease, diabetes and more.If we want to take care of our kids’ health (and our own), our families have got to start eating better. To learn how, we’re talking to Dr. Robert Lustig, author of Metabolical: The Lure and the Lies of Processed Food, Nutrition, and Modern Medicine. Dr. Lustig is an Emeritus Professor of Pediatrics in the division of Endocrinology at the University of California San Francisco. He lectures globally about health and is the best selling of several other books about nutrition.In our interview, Dr. Lustig and I are covering the surprising science behind our sugary diets–and why it's so essential that we change our eating habits. Plus, why our families should be consuming more fiber, and why today’s kids are so addicted to junk food.