By P.J. Huffstutter and Christopher Walljasper CHICAGO (Reuters) – It’s not a great time to be a hummus fan. Global supplies of chickpeas, the main ingredient, could dip as much as 20% this year, according to data from the Global Pulse Confederation. Weather and war have hurt supplies of the protein-packed bean, driving up food prices and creating headaches for food manufacturers. Chickpeas are made into hummus, flour, soups, stews and curries. While they are growing in popularity in the United States, they have long been key to the diets of people in India and the Middle East – places that ar…

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