Previously I had tried the liquid form in water on an empty stoamch as was suggested is the most powerful way to take it. Well, it ripped my stomach up pretty good and I was only taking a childs dose. I do have a sensitive stomach. Now I have the pills , I have been taking them with food and so far no stomach upset. Has anyone else had good results with Grapefruit-Seed-Extract and what was dosing methid you used. I am taking 1 125 milligram tablet 3x a day with food.