novel archeologic inquiry may have   revealed that the original ' paleo dieting ' contain wheat and barley , and was not just restricted to meat and vegetables asthe current diet typically is .

scientist fromCambridge , Cardiff , UCL and York Universities hit the books the remains of nine   peoplewho   lived around 9,000 years ago in the late Mesolithic ( 6600   -   6450 BC )   and the Mesolithic - Neolithic form ( 6200   -   5900 BC ) and line up plant matter fossilize in their tooth .

Thanks to inadequate dental hygiene , micro - fossils were snare in ancient plaque on their teeth . The researchers say these plaques contain plants — cereals , in fact — that were n’t   thought to be   part of people ’s diet for another four C .

prehistoric bones

Mysteries were revealed from human teeth remains.Dr Dušan Borić / Cardiff

" There has been a long - stand view that for the most of the paleolithic time , but also in the Mesolithic , animal protein come from meat and Pisces was the primary staple food with a very circumscribed use of industrial plant food for thought , " lede investigator   Dusan Borić   told Business Insider .

Mysteries were revealed from human dentition stay . Dr Dušan Borić / Cardiff

multitude in the Mesolithic full point   are generally believed to have beenhunter - gatherers and lived in Brobdingnagian woodlands .   The Neolithic , or New Stone Age , came afterwards ,   and it ’s then that people were believe to havefirst planted grain crops and modernize agriculture .

The discovery of domesticated cereal in Mesolithic people ’s diet mean that social networks between local foragers and the first Neolithic community probably extend further than archeologist originally think , due to how deep into the Balkan hinterland they were found .

" At the time of the discovery we had the sense that these groups of complex hunter - gatherers were in touch with other more distant locations , " Borić said .   " We found beads made of maritime univalve that total from coastal area in Greece and the Adriatic , C of kilometres away from the region for instance . "

This article originally appeared onBusiness Insider . right of first publication 2016

SEE ALSO : Sorry , paleo dieters : Your low - carb diet likely is n’t how our ascendant fueled their adult brains