Diet

 People’s diets vary from one country to another. Diets can also vary within a single country. Geographic differences explain part of this variation. For example, people who live near the ocean might eat greater amounts of fish than people who live farther inland. People living in cool regions with short growing seasons depend on crops that mature quickly, such as potatoes. In warm, wet lowlands where the soil retains water, rice is often a staple.

Geographic factors are less important today than they were a century ago. Improved methods of agriculture and transportation, as well as increased trade and tourism, have made more types of food available to a wider variety of people.

Improved methods of food processing, preservation, storage, and shipping allow many people to enjoy foods produced far from their homes. Spanish olive oil, French cheeses, and sardines from Norway, for example, are eaten as far away as Australia.

Local traditions and customs play a role in determining what foods people eat and how they are prepared. English tradition encourages roast beef and Yorkshire pudding, a type of bread, be eaten together. Many Asians serve rice with almost every meal.

Economic factors also affect what people eat. In the U.S. state of Maine, lobster is usually a relatively inexpensive food. The shellfish is native to the state’s coastal areas and has been a traditional food for hundreds of years. However, lobster is a luxury item in the Midwest, where it must be flown in. Lobster dishes served in Iowa may cost two to three times what they do in Maine.

In developed countries, many people have enough money to buy a variety of nutritious foods. Malnutrition is not a large problem, and people have a long lifespan. But even in these countries, there are many people who cannot buy these foods because resources are not evenly distributed throughout the population. In some places, healthy, nutritious food can be more expensive than so-called “junk food,” which has many calories but little nutritional benefit.

Even those who can afford healthy food may eat poorly. The diets of many people in developed countries are too high in the fats, salt, and refined sugars found in junk food. These diets are too low in fruits, vegetables, and fiber.

In developing countries, malnutrition is more common. A poor harvest, flood, or drought may cause famine, because the community or nation is not economically able to import food.

The diets of the urban and rural populations of developing countries are often quite different. People in urban areas eat more processed foods, while people who live in rural areas may have access to fresh milk, fruits, and vegetables. However, people living in rural areas are the first to be affected by a poor harvest.