As someone with Gastroparesis, GERD, and a Hiatal Hernia I can also vouch for probiotics as being extremely helpful in reducing gastrointestinal distress caused by various foods and dairy. I have also incorporated digestive enzymes into my daily supplements and they have been very effective in giving my lazy stomach the extra boost it needs to process hard to break down foods (especially foods high in fat and fiber).
My probiotic brand of choice is
Jarro-Dophilus from Jarrow Formulas. I have been taking these probiotics three times daily for a few years now and they have been so effective I can't go a day without them. Jarro-Dophilus does not cause my GERD to flare up and requires no refrigeration. Because these are enteric coated, they will survive stomach acid and reach the intestines where they will be released. Probiotics that are not enteric coated aren't very efficient as the cultures are destroyed before reaching the small intestine. I have tried many different probiotics from different brand and found the best results with the Jarro-Dophilus formulation. It includes 8 different strains of probiotic cultures (which is most likely why they work the best for my needs).
Didn't mean for this post to turn into a huge advertisement for Jarrow Formulas but this thread is extremely relevant to me and I just wanted to share my experience with various brands and cultures of probiotics. I have finally found a formula that works for me and I will continue to use probiotics for the rest of my life.