The Paleo (or Paleolithic) Diet is a lifestyle based on the ancestral human diet. The Paleo Diet has been called many things: Caveman Diet, Primal, Real Food Diet, and I have even heard it called MVF, which stands for Meat-Vegetables-Fat. All these terms refer to basically the same way of eating—the eating habits of our hunter-and-gatherer Paleolithic ancestors who, if they were able to avoid illness (due to the lack of modern medicine), lived very long and healthy lives.
While we can’t know exactly what our hunter-gatherer ancestors ate, in principle, Paleo is about eating the same whole foods that were found in nature millions of years ago. These include foods that come from the land like meats, vegetables, fruits, nuts, and seeds, and foods that come from open waters like fish and shellfish. These foods are nutrient-dense and are free from all those modern ingredients you can’t pronounce.
When we remove inflammatory foods from our diet—foods that were not part of our ancestors’ daily meals, such as wheat flour, industrial seed oils, sugar, and even supposedly healthy foods like grains, dairy, and soy—we reduce the risk of the most prevalent diseases of our civilization, such as heart disease, cancer, obesity, autoimmune diseases, and diabetes. Additionally (and best of all), we feel better, our energy levels rise, we look years younger, and we sleep better.
(ref http://www.multiplydelicious.com/thefood/what-is-paleo/)
Is this for CrossFit