Paleolithic diet
More than 70% of the total daily energy consumed by all people in the United States comes from foods such as dairy products, cereals, refined sugars, refined vegetable oils and alcohol, that Paleolithic supporters say were not eaten during the Paleolithic era.  However,  there is evidence that Paleolithic societies may have been using cereals for food use at least as early as 23,000 years ago, more than 100,000 years ago, and perhaps as early as 200,000 years ago. However, Loren Cordain has said that the new evidence shows that grains were not eaten much back then, and he has also said that eating of wild grass seeds of any kind needs technology and processing to make the food possible to eat, and that this technology was probably not around 105,000+ years ago.