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.
A: An average person burns 1,600 to 2,500 calories in a day. According to Everyday Health, men burn between 1,900 and 2,500 calories per day, while women burn between 1,600 and 2,000 calories per day. Besides the gender-based discrepancies, other factors that determine the amount of calories burned are size, age and the level of activity.