Minimum net Calories to eat by height and/or age?
I am familiar with the common guidelines regarding the minimum number of Calories to remain healthy, usually given as 1200 for women and 1800 for men. The problem that I see with this is that it does not account for height at all! I think it is only logical for a guy who's 5'6" to consume far fewer Calories than a guy who's 6'6" and weighs 100lbs. more. Age is another important factor because Caloric needs decline as we age. More accurate guidelines could help people immensely. Does anyone know of any such resource, giving minimum net Calories based on height and age?
Also, the opposite, if there is a reason my ideas about height and age are incorrect, how?
And if we get past the first two... Does MFP factor this into their calculations already?