It goes without saying that a varied diet-one that includes all food groups-is key for proper nutrition and lifelong health. Yet across the world, in both affluent and poorer nations, diets are nowhere near as diverse as they could or should be. For different reasons, scores of people across the globe are missing out on many vital nutrients that they should be consuming.
In the developing world, 160 million children are currently undernourished, notes Jessica Fanzo, an associate professor of nutrition at Columbia University in New York City and co-editor of a recently released book, "Diversifying Food and Diets: Using Agricultural Biodiversity to Improve Nutrition and Health Security."
This is partly due to economics, of course, but while food security is a more pressing issue in the developing world, many people there are also not availing themselves of the foods they have ready access to.
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