TA, you want to try eating nothing but chocolate for a few weeks before saying that?
No I wouldn't, Be There, as it wouldn't be healthy.
I have eaten nothing but Maccas and KFC (for main meals) though for 2 weeks-straight and my bod looked just as good, if not better.
Do you actually think you wouldn't get leaner/lighter by eating just 500 calories worth of chocolate every day? Lol.
Why don't you try it tomorrow for just 1 day.