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A pound is 50 extra calories a day for a week. It doesn't take much fork action to eat 50 extra calories a day.

What? Don't know where you heard that but fat has about 9cal per gram. That's ~4000cal.

Did you mean 500?

One pound of weight is equal to 3500 calories, so that's 7 * 500. Whoops, looks like I dropped the extra 0.