A recent article published by The Lancet magazine shows that obesity is becoming a real-world health problem more than the underweight issue. They used population-based data sources, with more than 19.2 million adult participants in 186 of 200 countries and found that the number of obese people has increased from 105 million in 1975 to 641 million in 2014.

The World Health Organization also publishes data about Obesity and Overweight, and the percentage of the population with overweight (BMI > 25) is more than half of the population in almost all the industrialized countries in the world:

This problem is particularly bad in the Pacific Islands.