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Nearly a quarter of the world's population will be obese by 2045; The researchers recently said and warned against a growing medical bill in the world.
If current trends continue, about 22% of people in the world will be obese by 2045, up from 14% in 2017, according to a study presented at the last European Congress on Obesity in Vienna.
One in eight people, versus one in 11, will be diagnosed with type 2 diabetes, a form of the disease that usually strikes adults as a result of being overweight.
In 2016, more than 1.9 billion adults, aged 18 and over, were overweight. Of these, more than 650mn were obese.
About 39% of adults aged 18 and over were overweight in 2016 and 13% were obese.
Most of the world's population lives in countries where overweight and obesity kill more people than underweight.
Nearly 41 million children under five were overweight or were obese in 2016.
More than 340 million children and adolescents aged 5 to 19 years were overweight or obese in 2016.
Health systems are already spending "huge sums just to treat diabetes," the researchers said.
Researcher Alan Moses of a Danish health care company badyzed population data for all countries of the world, extracted from a database of the World Health Organization.
They divided the population of each country into age groups, then into body mbad index (BMI) categories, and examined trends for projections.
BMI is a height-to-weight ratio used to divide people into low to high risk categories for developing heart disease, hypertension, type 2 diabetes, and certain cancers.
A person with a BMI of 25 or above is considered overweight and 30 or over obese.
A healthy BMI ranges from 18.5 to 24.9.
The researchers said that overcoming obesity would require "aggressive and coordinated action."
Overweight and obesity are linked to more deaths worldwide than underweight. Globally, there are more obese than underweight people – this is happening in all regions, with the exception of sub-Saharan Africa and Asia.
The fundamental cause of obesity and overweight is an energy imbalance between calories consumed and calories burned.
The WHO stresses that overweight and obesity, as well as related noncommunicable diseases, are largely preventable.
Supporting environments and communities play a fundamental role in guiding choices. They make it easier to choose healthier foods and regular physical activity, thus preventing overweight and obesity.
At the individual level, people can limit energy intake from total fats and sugars; increase the consumption of fruits and vegetables, as well as legumes, whole grains and nuts; and engage in regular physical activity (60 minutes per day for children and 150 minutes spread throughout the week for adults).
Individual responsibility can only be fully realized if people have access to a healthy lifestyle.
The WHO stressed that at the societal level, it is important to help individuals to follow the recommendations made, through the sustained implementation of evidence-based and population-based policies, that allow for regular physical activity and healthier, affordable and easily accessible food choices for all, especially the poorest. .
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