Final answer:
The collision of evolution and Western diets had negative health consequences for the Pima Indians and Naru islanders, leading to increased rates of obesity, diabetes, and other related health issues.
Step-by-step explanation:
When evolution and Western diets collided among the Pima Indians and Naru islanders, there were negative consequences for their health. The Pima Indians, who had traditionally lived as hunter-gatherers, experienced a rapid shift to a Western diet high in processed foods and added sugars when they were relocated to a reservation. This change in diet led to a significant increase in obesity, type 2 diabetes, and other related health issues among the Pima population. Similarly, the Naru islanders, who had a traditional diet consisting of whole foods and fish, started to adopt a diet high in processed and imported foods. This change in diet resulted in higher rates of obesity, cardiovascular disease, and diabetes among the Naru islanders.