There are More Obese People in the World Than Underweight People, New Study Reveals

A new study revealed that over 640 million people globally are considered to be obese, now outnumbering people who are considered to be underweight.
The study, published in the journal The Lancet, analyzed population-based studies that had measured the height and weight of adults aged 18 years and older.

The research used 1,698 population-based data sources, with more than 19.2 million adult participants, consisting of 9.9 million men and 9.3 million women, from 186 countries.
The study applied a Bayesian hierarchical model to the data to estimate trends from 1975 to 2014 in mean body mass Index (BMI).
BMI, as per a Reuters report, is an indication of whether a person is of healthy weight. This index is computed by dividing the weight in kilogram and height in meter squared.
A BMI score of over 30 is considered to be obese, while a score above 40 is considered to be morbidly obese.
The researchers discovered that in the past four decades, the number of obese people in the world has increased from 105 million in 1975 to 641 million in 2014.