When it comes to food and nutrition, we live in a world of extremes.
The United Nations estimates that about 815 million people are undernourished, with over 155 million children under the age of 5 suffering from stunted growth. Asia, by far the most populous continent, is also the home to most of the world's hungriest people.
On the other hand, obesity as a "lifestyle disease" has nearly tripled since the mid-1970s. The World Health Organization estimates that of the 1.9 billion adults who are overweight, 650 million are obese — a condition in which a person's weight is considered a danger to their health.