I have a recommendation: make a profound effort to remain at a low bodyfat (less than 6%) for a prolonged period of time. Like 6 months or so, even if it means losing some muscle. Some people have a lot of fat around their intestines underneath their abdominal muscles and this fat doesn't go away easily. Especially true if you've ever used any topical fat loss products or localized fat loss drugs. For example, GH causes fat loss at and right around the injection site; this can result in curface fat being burned quickly but leaving the fat underneath the ab muscles alone.
Additionally, you'll want to make sure you aren't eating any HUGE meals. If you have any huge meals then you need to split those up into multiple meals. Large quantities of food in a sitting will cause MAJOR distension that hangs around for a number of hours, many times all the wya up till your next meal.
Lastly, lay off the GH, IGF1, and insulin if you are currently using one of those. You might also want to stay away from oral anabolic steroids in general for a while since many can cause intestinal upset in some people which can result in distension for any number of reasons. For some it's inflamation due to irritation, for most it's simply excess gas that never finds its way "out" to a significant degree.
