The Paleo diet is also called the caveman diet because it is designed with foods that can be hunted or found in nature, resembling the diet of people in Paleolithic times. The diet has some strong points, since it does eliminate processed foods and other unhealthy choices. But there are also a lot of negative points to note as well. You eat a lot of protein while on the diet, and there are risks to the health. Another disafanvatge of the diet is that isreally hard to follow all of the guidelines, and when you do it can be expensive. The paleo diet does have advantages but there are also a lot of disadvantages as well. It is always best to talk to your doctor before starting this diet plan. Effectiveness Yu can certainly lose weight and feel better using the Paleo diet Side Effects There can be a number of side effects associated with the use of the Paleo diet. Some people feel they don't get enough to eat and others cite that there are health problems.