Caveman diet

This diet is modeled after what our ancient ancestors ate in prehistoric times. One example of a typical day includes: breakfast—a grapefruit and a glass of orange juice; lunch—a tossed salad and all of the nuts you can eat; snacks—as many apples as you desire; dinner—all the chicken you can stomach, along with two servings of vegetables. From this example, it's easy to see what the diet would be like over a prolonged period of time.

The Caveman diet is similar to the Atkins diet as it is mostly protein and fatty foods. It tends to lead to an unhealthy amount of fat consumption. Beyond that, it isn't very balanced in terms of vitamins. Since it is very low on carbs, it can also make people feel very tired and weak.