So, with one week of stats under the belt now, according to what I’ve been tracking at TDP I consumed 12,227 calories over the last week. At my weight at the time and ‘light’ activity level, I should have burned 22,337 calories (3191 x 7), for a difference of 10,060. Using the guideline that losing a pound of weight requires roughly a difference of 3500 calories, the expected weight loss should be 2.87 pounds. Actual weight loss over the last week was 1.0kg, or 2.2 pounds.
So it’s off by about 30%, which isn’t too bad for an inexact science like this. I suspected that the calorie counts on some days might be underreported a bit due to uncertainty about sizes and inexact matches in the database, and the physical activity level is very rough and leaves a lot of room for error.
If I assume that the calories consumed is correct, then the average number of calories I burn per day is actually closer to (12,227 + 2.2 x 3500) / 7 = 2847. If I assume that the calories burned is correct, then I’m actually consuming (22,337 – 2.2 x 3500) = 14,637 calories, about 20% higher than what I entered. But the reality is probably somewhere in the middle between the two.