You are 25 years old and weigh 176 pounds and run 6 miles everyday how long will it take to lose 20 pounds?

Answer 1

You can't out exercise your fork. Exercise is good but diet impacts your weight more.

Contrary to popular belief the way to lose weight is not by Starving yourself or eliminating or eating only certain foods. The way to lose weight is by barely eating under your maintenance level. This is your 0 weight loss or gain number. Most try and starve themselves with some crazy diet, but when you do this it has the opposite effect. You are fighting your body. Your body is trying to conserve while you are trying to get it to shed. By barely eating under this level you are not starving yourself. As a matter of fact you are eating quite a bit of food and your body will easily give up the weight.

Answer 2

Assuming you walk at a pace of 3 miles an hour (slightly faster will burn a few more calories and vice versa) you will burn an additional 420 kilocalories a day (2940 kilocalories a week).

Again, making the assumption that your current calorie intake keeps your weight stable, i.e. you are using all the energy you gain from your food, then it will take you approximately 30 weeks to lose the weight.

This is calculated on the basis of 1 pound of fat equaling 3500 kilocalories of energy. The calculation is obviously not exact as weight loss is more complex. Additionally, as you lose weight your basal metabolic rate will reduce as this is linked to your total body mass. If you have built up muscle then potentially some of this reduction will be counteracted or reversed but I would expect the calculation to be moderately accurate.