It takes a gain of 3500 calories in excess of what you burn off doing daily activities and for body maintenance to gain a pound.
It takes a loss of 3500 calories to lose a pound.
Typical healthy weight loss is about 2 pounds a week for an average person. If you try to lose more, you are losing weight too fast and can get sick from it (it affects the immune system and the least little thing can make you sick–many hikers blame it on bad water–giardia).
Hiking/Backpacking, you burn about 400 calories per hour. But this is average. The more you weigh and your pack weighs, the more you burn off per hour. The less the weight, the less you burn. Also climbing a mountain, you burn a lot more than hiking/backpacking on flat land.
Thru hikers normally lose weight due to the intense calorie burn they do daily. If they would eat more and hike less, they would not lose weight. But many of them have weight they need to lose anyway.
When they finish their thru hike and hence do not have that intense calorie burn daily, they tend to gain the weight back. This is because they do not modify their diet.
The body’s craving for food and what the body really needs in the way of calories per day are not in sync. Hence we have an obesity epedemic in this country. The natural thing to do is to eat when food is available and put on fat to last you thru the times of famine or lean times with little or no food. However we experience no lean times, so people just get fatter and fatter.
Anyway all of this really is very interesting to me and I am a student of all this stuff and very interested in it.
See you out there.:cheers :cheers :cheers
Maintain