Studies published in the journal Nature, also mentions the Western-style diet high in sugar, salt, oil and meat bad for human health and the environment.
Reporting from VOA, in the study, David Tilman, a professor of ecology at the University of Minnesota, analyzed data from 100 countries to see what is in the eating by people. In addition, this study also to see how diet can affect health.
He noted a trend that began in the 1960s: the more industrialized countries, population increases and rising incomes. More and more people adopt a westernized diet, which is high in refined sugars, fats, oils and meats are high. People began to be heavy and unhealthy.
"In the 15 richest countries in the world today, many people eat 400 or 500 extra calories a day beyond what is necessary, so that their weight goes up," said Tilman.
Tilman added, people who are overweight have a greater risk on non-communicable diseases such as diabetes, heart disease and some types of cancer.
"Diabetes soaring very high in the United States and throughout Europe. Heart disease is the major cause of death in Western countries. And unfortunately, when countries become more industrialized, they adopted a Western diet, and have health impacts are the same and in some cases, if you are Asians, the impact is more severe than the West, "said Tilman.
It happened in China, where people with diabetes jumped from less than 1% to 10% of the population within a period of 20 years.
"This figure will continue to rise, and this is happening all over the world, in Mexico, Nigeria and other countries for the sake of the country," said Tilman.
According to him, western-style diet is also bad for the environment. Experts predict that as the global population increases, more and tropical forest habitat that would be converted into agricultural land and livestock to meet the growing demand for food.
"It would be a lot of greenhouse gases produced by agriculture as a result of this shift in diet, compared to greenhouse gases currently produced cars, airplanes, ships and all forms of transport," said Tilman.