as a "newbie" cardio-er, I find your point mentioned in this thread intriguing..I have researched my own personal bmr as a sedentary person, active person, ect. This calorie calculation for the different actvity levels is quite different. Are these measurements, then accurate in terms of neeeded calories for wieghtloss for those embarking on moderate to intensive excercise? I consider, my 16.5 miles i jog a week pretty moderate should i adjust my calories up for this as indicated by calories calculators, or restrict them interms of no additional calories? I find your insight quite inspiring and very helpful..Please continue your input...Thank you..