For other uses, see Jack Frost (disambiguation). Jack Frost is the personification of frost, ice, snow, sleet, winter, and freezing cold. He is a variant of Old Man Winter who is held responsible for frosty weather, nipping the nose and toes in such weather, coloring the foliage in autumn, and leaving fern-like patterns on cold windows in winter.
Dear Countin' Cal, Theoretically, about 3500 calories equals one pound of body weight. This means that you'd have to take in 3500 fewer calories than you usually do, over a period of time, to lose one pound. Keep in mind, this is in theory; what happens in the real world can be very different.
How Many Calories Should You Eat on Average? An average woman needs to eat about 2000 calories per day to maintain, and 1500 calories to lose one pound of weight per week. An average man needs 2500 calories to maintain, and 2000 to lose one pound of weight per week. However, this depends on numerous factors.