Co-evolution of increased human brain size with decreased size of digestive system

[Guest guest]

I couldn't find the original piece, I used but this is interesting.....to some....maybe.

Kit

Co-evolution of increased human brain size with decreased size of digestive system

Data points to increasing dependence on denser foods, processed by a less energy-intensive gut to free up energy for the evolving brain.

Sufficient amounts of long-chain fatty acids essential to support brain growth.

Animal prey likeliest source for required amounts of long-chain fatty acids during human brain evolution.

Human brain size since the late Paleolithic has decreased in tandem with decreasing contribution of animal food to diet.

A closely related factor is that the increase in brain size co-evolved with a concurrent reduction in size of the human gut.

Human gut has evolved to be more dependent on nutrient- and energy-dense foods than other primates.

http://www.beyondveg.com/nicholson-w/hb/hb-interview1a.shtml

http://www.beyondveg.com/index.shtml