VSL #3 is seen as a quite good and well-researched probiotic. It is ordered on the internet. Culturelle, available in grocery stores and pharmacies, is also well researched, and has the advantage of being D-Lactate free. D-Lactate producing Lactobacillus and Bifidobacter probiotics are seen as a problem for CFS patients. Custom Probiotics makes a D-Lactate free combination of Lacto and Bifido. Harry, who runs Custom Probiotics, seems happy to talk about the advantages of his products, which he has designed himself. Mutaflor makes a probiotic that is seen as providing great benefit. This product can be purchased in Germany and shipped to America. De Meirleir and Cheney both use this product. Recently, Dr. Alan Logan on Cort Johnsons most valuable site, has been promoting Align, a bifidobacterial probiotic. Align has a small amount of sugar in it, and is also D-Lactate free. Dr. Guyer recommends Allergy Researchs Russian Immune for boosting the immune system.
There is continuing research into various probiotics and their relationship to particular illnesses and to health in general. For instance. there is a probiotic in development that supposedly eats oxalates, for those of you that have that particular problem.
So it would be prudent to keep reading about probiotic research and keep in mind that it might also be useful to rotate probiotics.
One recipe for making gut ecology improvement might be this:
GNDL digestive Enzyme
Custom Probiotics, D-lactate free