A recent global study suggests that you don't necessarily have to have an obese diagnosis, to be at risk for dying from conditions related to excess weight. Of 4 million deaths that occurred in 2015 that are related to being overweight, around 40% were not considered clinically obese (a BMI of 30 or more.)
The study looked at 195 countries and territories over a period of 35 years, from 1980 to 2015, and indicated that 30% of the world's population, 2.2 billion children and adults, are affected by excess weight and suffer from health problems related to being overweight (type 2 diabetes, heart disease, some cancers.)
"Excess body weight is one of the most challenging public health problems of our time, affecting one in every three people," said Dr Ashkan Afshin, lead author of the study and an assistant professor of Global Health at IHME.
These results stress the need for reducing the prevalence of high BMI and its health consequences.
Original Article: http://www.bbc.com/news/health-40220182
Full Journal Article: http://www.nejm.org/doi/full/10.1056/NEJMoa1614362