A team of scientists has begun exploring what can be learned from the diet of cavemen who lived more than two million years ago.
Research will focus on how the food eaten by hunter-gatherers could enhance modern day nutrition. Our ancestors in the palaeolithic period, which covers 2.5 million years ago to 12,000 years ago, are thought to have had a diet based on vegetables, fruit, nuts, roots and meat.
Cereals, potatoes, bread and milk did not feature at all. It was only with the dawn of agriculture (around 10,000 years ago) that our diets evolved to include what we think of as staple foods now. So are we programmed to eat what we do today - or are we better suited to the diet of our ancestors?
Global brand giant Unilever has brought scientists and experts from fields as diverse as evolutionary genetics, anthropology, food science and botany together to find out the answer.