Some factors that have an influence on a region’s cuisine include the area’s climate, the trade among different countries, religiousness or sumptuarylaws and culinary culture exchange. For example, a Tropical diet may be based more on fruits and vegetables, while a polar diet might rely more on meat and fish.

The area’s climate, in large measure, determines the native foods that are available. In addition, climate influences food preservation. For example, foods preserved for winter consumption by smoking, curing, and pickling have remained significant in world cuisines for their altered gustatory properties.

The trade among different countries also largely affects a region’s cuisine. Dating back to the ancient spice trade, seasonings such as cinnamon, cassia, cardamom, ginger, and turmeric were important items of commerce in the earliest evolution of trade. Cinnamon and cassia found their way to the Middle East at least 4,000 years ago.^[2]

Certain foods and food preparations are required or proscribed by the religiousness or sumptuary laws, such as Islamic dietary laws and Jewish dietary laws.

Culinary culture exchange is also an important factor for cuisine in many regions: Japan’s first substantial and direct exposure to the West came with the arrival of European missionaries in the second half of the 16th century. At that time, the combination of Spanish and Portuguese game frying techniques with a Chinese method for cooking vegetables in oil led to the development of tempura, the popular Japanese dish in which seafood and many different types of vegetables are coated with batter and deep fried.^[3]