The Paleolithic diet is defined as a diet which was followed when there was no agriculture. It is also called as “Stone age diet”. It consist of foods that were available to human beings when there was no formation of agriculture. It was started around 2.5 million years ago when human beings started to use tools made up of stones. It includes various foods like fish, meat, fruits, eggs etc. and it excludes foods like salt, processed oils, sugar, grains etc.