A calorie is not a calorie.
I feel much better when I eat healthy foods, cut out sugars and shitty fats like fried food...etc.
A calorie is a calorie. There is no arguing with that statement (which Adam is very aware of). However, when he says that phrase, (in the context of it's past discussions here) he is using 'loaded' terminology - i.e. he says 'a calorie is just a calorie' knowing full well that most people will misunderstand that statement and open a whole umbrella of discussions around it.
He means it, in the same way you could assert "A dollar is just a dollar". Yes, you can go back and forth for days on why a dollar means more to one person because of their circumstances, or a dollar isn't actually a dollar because of National Debt blah blah. At the end of the day, you will still be able to assert this statement and be correct.
However, I agree with what you are saying Skorp - depending on what foods I get my calories from, I feel different, I store fat more quickly or less quickly, I have less or more energy, and the list goes on - this aspect of dieting will always be too subjective to 'win' an argument though, and Adam isn't actually talking about this aspect of dieting AT ALL.
He is the godfather of trolling.