One pound of additional body fat is created through consuming how many extra calories?

Eat more calories than you burn, and you'll gain weight. Burn more calories than you consume, and you'll lose weight. The magic number of calories bandied about for decades has been 3,500—subtract that number from your diet or burn off 3,500 calories more than what you consume, and you'll lose 1 lb.

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Yes the correct answer would be a. direct contact