It's the holiday season and food is everywhere! How does one navigate the modern food environment without gaining weight? This is a tough question to answer, as we have evolved in an environment where food was scarce. In order to survive, it was best to eat anything and everything available. Our world has evolved too quickly for us to keep up - in terms of keeping our bodies healthy. For many people in the developed world, food is too available given our biological predisposition. Food is also designed to hit the "need more" and "want more" triggers, as it's particularly sweet and fatty - good things for beefing up before the next food shortage.