Surprising actually but truly makes sense. All those roots, and not just potatoes, demand boiling in order to be easily eaten. They were also the largest and best source of food for a hunter gatherer. Having seen a film of a bushman harvesting a large tuber, it is a safe bet that the land everywhere is full of tubers of some sort.
- Eating meat was credited with allowing humans to develop large brains
- But study suggests cooked starchy foods like potatoes were vital too
- Human brain uses high levels of blood glucose found in carbohydrates
- Starches would have been readily available to ancestral human populations
The human brain uses up to 60 per cent of the body's blood glucose. It is thought that cooked starchy food like potatoes could have provided a glucose-rich diet necessary for this to develop in our early ancestors
The researchers also point out that humans possess six salivary amylase genes, while other primates just have two, increasing the ability to digest starch.