...warning, this will not be a pretty image...the ones I tried were in tablet form...they went in one end whole, and whole out the other as well, undigested. I have tried the ester-C as well. I am re-thinking all this as I learn more. I have taken proton pump inhibitors for some years now. I have had fibro for more than 15 years. I just saw a new doc and he wanted to test me for celiac's, I think I spelled that right, but I woud not let him. I am thinking that might have been a mistake. Good diets are so hard to stick to, but good health is worth it. I am going to try one of the vit. C's you mentioned. And I am thinking I should let the doc test me. I have been diagnosed in the past with IBS. I really like natural alternatives. I think they are the best way to go, but I don't have the knowledge base to go about it in the best way possible, for the best results. Thank you for sharing the knowledge and experience that you have. I really appreciate it. My son prefers natural alternatives as well. Some of us have to learn to use them as we react badly to the meds. Thank goodness there are alternatives, and TG for the people here.