I don't think it lessens the
ability to eat, if that's what you mean. I do go to bed feeling full, but that's not
entirely due to SX. I'm doing a 16/8 (16 hrs. fasted, 8hrs. fed) routine where I eat a small meal after the fast is over (3pm), work out, then eat a larger meal (~5pm)and split the rest of my cals up from there (up until bedtime, no later than 11pm). The idea is to burn fat during the fast, and then take advantage of the increased insulin sensitivity that comes with the feeding around your workout.
It's a little different, and anytime you fast, even if for just 16hrs. at a time, you get full much easier than you would think when you start to eat. I don't think SX put any kind of a "cap" on how much I could physicaly eat, but I can say I've lost the cravings that I used to battle with...well, had lost...tomorrow I have no more SX left