Quote:
Originally Posted by Glory87
Not even caloric intake?
Not necessarily. Generally speaking, a heavier body requires more calories to maintain its weight and it requires more calories to do the same exercises than a lighter weight body does. (Although LBM is the primary consumer of at-rest calories, it's not the only consumer -- and hauling a 200 lb body up a hill (or even just out of bed) takes more calories than a 120lb body, whether or not those lbs are muscle or fat).
Thus, if you consume maintenance level calories and do maintenance level exercise and are above maintenance weight, you will lose weight -- although, very, very slowly if you are near maintenance weight. Because most people aren't happy with a such a slow rate of weight loss, they choose to eat less than maintenance levels and then increase calories when they hit maintenance weight. This, however, is not required (but is hard to do -- everyone's body is different and changes as we age, acquire health conditions, etc, so it's difficult to know exactly what the maintenance level is if you're not there), you could live a 'maintenance' lifestyle from day 1 and your body will eventually get there.
That said, do I sometimes choose to eat less than what maintenance is when I weigh more so that I get even faster weight loss? Yeah. I'm human. Also, since determining exact maintenance level is hard (or impossible since it is a moving target), doing so makes it take less time to get feedback on whether the calorie level is in an appropriate range.
Actually, there is one big exception: if one is very overweight, the body's calorie needs could be so high just to perform daily living tasks, that eating at maintenance level calories would be too low to be healthful without medical supervision. In that case, a slow decrease over time to maintenance level calories as one loses weight is advised.