The Paleo Diet is about getting back to the basics. The premise is that hunter-gather societies did not eat many of the processed foods we chow down on today, but instead filled up on meat and fish and fruits and vegetables grown without antibiotics and hormones. Most people who follow the diet avoid carbohydrates and processed grains. The scientific community is split on the benefits of the diet, many acknowledging that there are perks to eating lean meat and plant-based foods, and others complaining it is too restrictive. For some, it's a way to lose weight, but for others it's about the sustainability and lifestyle. Either way, it's a commitment.