Study Explores Carbohydrates' Role in Brain Development
The recent study conducted by the University of Sydney and the University of Glasgow suggests that the availability of carbohydrates, especially natural sugars and starches, played an important role in the evolution of the human brain over millions of years. The brain size of human ancestors increased from about 300 grams to approximately 1.5 kilograms during the past four million years. The study indicates that relying on energy-rich sources such as fruits, honey, and later cooked starchy foods after the discovery of fire helped meet the brain's glucose needs, with an estimated requirement of 150 to 250 grams of glucose per day. The findings point to the conclusion that a continuous and sufficient energy supply was essential, and that carbohydrates played a central role in supporting human brain development and its growth in size.
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