softgainer:
I've just started a pint of heavy cream before bed every night three days ago. I'm really curious to see what that's going to look like a week or so from now.
soylentlilac:
A pint of heavy cream has about 1600 calories. After 7 days that is VERY roughly 3.2 pounds’ worth of calories. So if your diet is otherwise balanced, that’s how much you can gain by adding the cream.
Wouldn't it be closer to 2.5 lbs?
Whether you can keep that up for 7 days in a row is another matter, though. I'm not judging anyone who can't, but I think most can't.
That estimate also seems posited on 3,500 excess calories being an extra pound. Whereas, a kilogram is 9,000 calories and thus, a pound would be 4,082.
Of course, you (or others) may say it's not that simple, and you would be right. Water retention, for one thing. But the human body also isn't going to be completely efficient. I think getting 80% of that would be very impressive.
Fat in general, though filling, is however very efficient in that regard. But this filling effect might prevent or discourage snacking that otherwise may have happened.
But after a certain point, if you go past your current capacity, some of it is discarded. A little TMI perhaps, but I think this may even change the color of your *ahem*... waste if you go overboard enough. It's why you can't drink oil (not that it would be very tasty!).
On the other hand, it seems that one's capacity likely increases, the heavier you get. I couldn't keep that up for a week, but some have said or claimed 10 days or even two weeks in a row.