Final answer:
There are significant differences in the types of vegetables and cooking practices around the world, such as the staples of North Indian cuisine compared to those in America. When people move to a new region, they may experience temporary digestive upsets due to the introduction of unfamiliar foods and differing food safety standards.
Step-by-step explanation:
The question pertains to the differences in the use of vegetables and food practices in various parts of the world, referencing specific vegetables like carrots, onions, and celery in contrast to foods from the eastern areas of the world. This comparison leads to a discussion on dietary changes and the potential for digestive upsets when individuals move between different regions or countries, which can be attributed to the introduction of new foods and cooking methods that the digestive system may not be accustomed to, as well as the changes in food safety standards and water quality.
For example, North Indian cuisine includes staples such as wheat-based flatbreads and a variety of spices and dairy products, which may differ significantly from the typical American diet. Subsequently, the globalization of food has allowed for a diverse range of products to be available worldwide, yet regional food customs and availability still play a critical role in shaping people's diets and their responses to new foods.