What makes you fat?

Answer 1

Short answer: if a person absorbs more calories than are used up during any one day, the body stores them, and these can be converted into fat. Somone who works at a desk typically needs less calories than a person who does construction work; assuming no exercise at a gym, if both eat 6,000 calories per day the desk worker will retain more than the construction worker. Foods that are high in refined sugar or saturated fat are likely to put a person over the daily limit quite quickly as it takes the body time to break them down. Having said this, metabolism must be taken into account; whilst it can be raised due to regular exercise, some people appear to have a naturally high metabolic rate and thus remain slim even though they are sedentary and consume a significant amount of calories.