ANT220H5 Lecture Notes - Lecture 4: Jared Diamond, Hunter-Gatherer, Overproduction
Document Summary
Changes in our digestive system occurred in the upper paleolithic (200-10 kya) 20% of what we eat goes to brain functions humans cannot synthesize energy them self"s energy sources: carbohydrates (fastest synthesize) plants sources simple vs complex . Depend on the size of the molecule simple: sugar complex: starch fat (slowest to synthesize) animal and plant sources linoleic acids: essential fatty acids. Most energy efficient foods proteins required as source of amino acids. 1768-1779 captain james cook stopped for fresh fruits as much as possible. 1861-1865- us civil war fall of scurvy when fresh fruit is available pellagra deficiency of b3. B3 history of pellagra stress of germ theory as cause of pellagra primate model tests on monkeys tests of pellagra on primates done by goldberger (1912-1916) Porotic hyperostosis/ cribra obitalia in the skull. Domestication of increasing number of species in some regions. Diets in affluent countries vs, hunter gatherer societies. Modern hunter gatherer analogy appropriate for paleolithic hunter societies.
