The narrowing of diversity in crop species contributing to the world’s food supplies has been considered a potential threat to food security. However, changes in this diversity have not been quantified globally. We assess trends over the past 50 y in the richness, abundance, and composition of crop species in national food supplies worldwide. Over this period, national per capita food supplies expanded in total quantities of food calories, protein, fat, and weight, with increased proportions of those quantities sourcing from energy-dense foods. At the same time the number of measured crop commodities contributing to national food supplies increased, the relative contribution of these commodities within these supplies became more even, and the dominance of the most significant commodities decreased. As a consequence, national food supplies worldwide became more similar in composition, correlated particularly with an increased supply of a number of globally important cereal and oil crops, and a decline of other cereal, oil, and starchy root species. The increase in homogeneity worldwide portends the establishment of a global standard food supply, which is relatively species-rich in regard to measured crops at the national level, but species-poor globally. These changes in food supplies heighten interdependence among countries in regard to availability and access to these food sources and the genetic resources supporting their production, and give further urgency to nutrition development priorities aimed at bolstering food security.
You can eat a perfectly nutritious diet for a lot less money than the US government says you need. But would you want to?
Jeremy Cherfas interviews Parke Wilde, an agricultural economist at the Friedman School of Nutrition Science and Policy at Tufts University in Boston.
Subscribe: iTunes | Android | RSS | More
Support this podcast: on Patreon
I love that Jeremy raises the question of preparation time in discussing the Supplemental Nutrition Assistance Program (SNAP). It’s something that doesn’t seem most people would consider, but which in the modern world has become a major consideration. To some extent a lot of the growth of obesity in the U.S. is as a result of people going to restaurants and eating less healthy food out, but justifying it for the savings in time and the general convenience.
Some of this discussion reminds me of a talk I saw back in August by Sam Polk, co-founder and CEO of Everytable, a for-profit social enterprise that sells fresh, healthy ready-to-eat meals affordable for all, and founder and Executive Director of Groceryships, a Los Angeles non-profit working at the intersection of poverty and obesity. He was also the author of the book For the Love of Money: A Memoir of Family, Addiction, and a Wall Street Trader’s Journey to Redefine Success.
As I’m listening, I’m curious what these types of programs look like in other countries? How does the U.S. compare? Do those countries leverage the same types of research and come up with similar plans or are they drastically different? I’m thrilled that in the very last line of the episode, Jeremy indicates that he may explore this in the future.
I’ll also guiltily admit that while listening to this episode, I was snacking on M&M chocolate candies while drinking a sugary supplemented beverage. Perhaps I’ll pay my penance later by baking a fresh loaf of bread.