The US Department of Agriculture (USDA) defines standard serving sizes for dietary guidance.

FORBES: Consumers Opt For Larger Food Portions To Increase Social Status

The US Department of Agriculture (USDA) believes it is more likely that companies will produce clones with "desirable" traits, breed them, and bring products from the offspring into the food chain.

BBC: RELATED BBC SITES

Matt Buffington, a research entomologist at the US Department of Agriculture (USDA), says the stink bugs arrived in the US sometime between the late 1990s and 2003 to find an "enemy-free space".

BBC: US & Canada

The US Department of Agriculture (USDA), has announced that US sugar supplies could run short this year as farmers could lose 21% of the 2011 crop if they are not able to start sowing in the spring.

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