Without consuming a similar weight in food/putting on a similar weight in clothes there is little chance of any living person on earth ever putting an additional 10 pounds on the scale within just one day.
Losing 10 pounds is a bit more plausible, with breathing and especially *sweating* being a huge net-loss in mass for the body, but for the average human this type of fluid loss without replenishment would raise some serious health-related questions.
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