I've been in a discussion with some colleagues at another site and one guy made the following posting:
A rather confusing statement. The issue we're having is over "Calorie" versus "calorie". Which if, I'm guessing right, might have led to a statement that "3,500 calories = 1lb" when in fact it should be "3,500kcals = 1lb".1 Calorie = 1000 calorie = 1 kcal = 4184 Joules
Semantics perhaps but having proper terminology can be important.