In the U.S. food is taken for granted. There are well-stocked supermarkets and no shortage of cookbooks and eateries to indulge appetites. This bountiful supply allows Americans to focus more on the aesthetics of food and, to an increasing degree, where and how it is produced. For the millions around the globe who do not live in an affluent society, the main concern about food is more basic: Getting enough of it on a consistent basis. For many in Africa and Asia, this entails growing cash crops and staple foods. As the Gates Foundation points out, agricultural enhancement in the developing world is also the key to a better life: