A single soft shell crab is also high in cholesterol at 79 mg per serving or around 26 percent of the daily recommended intake of cholesterol. According to the American Heart Association, dietary cholesterol intake should be limited to 300 mg per day for the average adult.
However, walking is an excellent long-term weight-loss exercise. You can easily walk thousands of miles over decades, because walking has a very low injury risk. How many calories you burn on a one-mile walk depends on your speed and weight.
The number of calories youâll burn speed walking depends on your current body weight and your speed. If you speed walk for two hours, however, youâll likely expend a significant number of calories, and if you do so on a regular basis you may start to lose weight.55 Pounds. Adults who weigh 155 pounds expend fewer calories speed walking than a 185-pound person. A 155-pound adult burns 596 calories walking at a pace of 3.5 mph for two hours, 668 calories walking 4 mph and 744 calories walking 4.5 mph.