I’ve been taking Preservision for a few years. Found this site in my search for why I’m having intestinal issues. For the past about 18 months, I’ve been having random days, about every 4-8 weeks, of terrible stomach pain, diarrhea and nausea. In the past couple of months, the incidences have increased to at least once a week. The only common denominator I have been able to identify is the Preservision. I take one in the morning with breakfast. About an hour after that is when the pain starts. It usually lasts a couple of hours, but can last all day. I’m looking for answers and wondering if others have experienced something similar. It seems that most commenters have had immediate adverse symptoms rather than delayed after years of taking Pres. Would like to hear from others.