I got a sample of this when the company was doing a promotion. I didn't expect it to do anything, but I thought that I might as well give it a try as the sample was enough for almost two weeks.
PGX is essentially a fibre supplement that you take before meals with water. The pill absorbs water and then expands helping you feel full after having eaten less food. Since it is a fibre it also helps balance your blood sugar.
I found that I really did start to get full at lot sooner than without PGX. I have yet to buy more, but I think I will next time I see them on sale (I have seen them as low as $19.99) since I was happy with them and think they can be helpful in weight loss and management.