Calcium is water soluble, but not fat soluble. It is the fifth most dissolved ion in seawater. On the other hand, fat is soluble into calcium in the body. The calcium will exâ¦tract the fat from food in the digestive system, and they combine to form a foamy substance which is not absorbed by the body, and so the fat will be flushed out.
Studies show that it is about 20 percent of the resting metabolic rate, which is about 1,300 calories a day, not of the total metabolic rate, which is about 2,200 calories a day, so the brain uses roughly 300 calories.
Here are some numbers to wrap your brain around. Syracuse University did a study that involved 12 men and 12 women. Their caloric burn was measured when both walking (19:00 minute miles) and running (9:30 minute miles), for a distance of 1,600 meters (about a mile). The men burned an average of 105 calories while running, and just 52 while walking; the women burned 91 calories while running and 43 walking.