More than 2.1 billion people, or nearly 30% of the global population, are overweight or obese. Excess weight leads to about 5% of worldwide deaths. On current trends, almost half of the world’s adults will be fat by 2030. Over the past three decades, according to a study in the Lancet, a medical journal, no nation has slimmed down.
But a new study from the McKinsey Global Institute (MGI), the consultancy’s research arm, offers some hope. It looks at 74 anti-obesity measures around the…