Final answer:
The people of Jarmo had a diet consisting of a balanced mix of plant and animal products, with cooked lean meat accounting for about 20 percent of their consumption. Infants were exclusively fed human milk. The diet was region-specific and influenced by the environment, availability of food resources, and agricultural practices.
Step-by-step explanation:
The people of Jarmo had a balanced mix of plant and animal products in their diet. They consumed a wide range of foods of plant origin such as berries, fruits, nuts, roots, grains, and leaves. Additionally, their diet included a certain amount of cooked lean meat, which made up roughly 20 percent of the diet by weight. This meat was characterized by a low fat content and a high ratio of polyunsaturated to saturated fats. Moreover, the primary source of nourishment for newborn infants was human milk.
It is important to note that the diets of people during this period were greatly influenced by their environments. For example, the Jomon people, who lived in an abundant environment, relied heavily on chestnuts, and archeological discoveries have shown evidence of their use of chestnut orchards. However, their diet also included seafood such as fish and clams.
Furthermore, diets differed across different regions, with some populations consuming a higher proportion of meat, while others primarily subsisted on plants and animal products depending on the availability in their respective regions.