Ultra Fast Keto Boost Diet Supplement But the truth is, we'd rather be sitting on the couch with a half-gallon of chocolate ice cream. But the stark reality is that the number of people who are either overweight or obese is growing worldwide. In fact, according to the World Health Organization's (WHO) latest projections, by 2015 approximately 2.5 billion adults will be overweight (body mass index, or BMI, of 25 or higher) and 700 million will be classified as obese (BMI of 30 or higher).