Ahem

I'll go back to my sourdough after all:

The popular image may be of Stone Age people gnawing on a chunk of woolly mammoth, but new research indicates their diet may have been more balanced after all.

Many researchers had assumed people living in Europe thousands of years ago ate mainly meat because of bones left behind, and little evidence of plant food.

Now, new findings indicate grains were part of the diet at ancient sites in Italy, Russia and the Czech Republic, researchers report in Tuesday's edition of Proceedings of the National Academy of Sciences.