I'll preface this post by saying that I'm not sitting up every night biting my nails to quick over the ounce of muscle I may or may not be losing over this issue. I realise that in the scheme of things, this warrants about 0.00000237% of my dietary attention. I'm just asking because I'm curious.
I was in the USDA online food database looking up macronutrient ratios - prompted by the "How do you separate your eggs" thread in the the Offtopic forum. Up to now, I'd been using more egg whites and I wanted to see the impact on using whole eggs. So here's what I found:
kCal/P/C/F -- Sat Fat/Mono Fat/Poly Fat
6 eggs (whole, raw):
512/44/3/35 -- 11/13/5
6 eggs (whole, scrambled):
608/41/8/45 -- 13/17/8
6 eggs (whole, omlet):
560/39/3/44 -- 12/18/8
The question: Why are there differences? Is it purely measurement error, or is there magic happening during the scrambling of the eggs that creates calories?