Few British workers fancy showing up for a 6am shift in one of Evesham's refrigerated food-packing factories, whatever the wage on offer.

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"Donate enough money to the Senate GOP as an investment that will end up making their corporation an enormous amount of money, all on the backs of hard-working, taxpaying Americans, " said Patrick Purcell of the United Food and Commercial Workers International Union, which represents workers in grocery and retail stores, and in food-processing and meat packing companies.

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Sun Valley Foods, which supplies chickens to a range of supermarkets, is adding a new packing hall to its food-processing plant in Hereford.

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To keep from packing on pounds, experts say, limit food consumption to your hours of peak activity.

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But all of that activity is focused on extracting energy and nutrients from food, so along with the hydrogen gas, the microbes are also packing in more calories for the host, which can lead to weight gain.

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