Original: The modern dietary regimen known as the Paleolithic diet ( abbreviated paleo diet or paleodiet ) , also popularly referred to as the caveman diet , Stone Age diet and hunter-gatherer diet , is a nutritional plan based on the presumed ancient diet of wild plants and animals that various human species habitually consumed during the Paleolithic eraâ '' a period of about 2.5 million years duration that ended around 10,000 years ago with the development of agriculture .
Simplified: The modern diet known as the Paleolithic diet ( abbreviated paleo diet or paleodiet ) , also called the caveman diet , Stone Age diet and hunter-gatherer diet , is a way of eating . It is based on the wild plants and animals that it thought that human species ate during the Paleolithic era .