I tried Kefir but was not impressed, although there are those who say that homemade is the only way to go. For probiotics and digestive enzymes my vote goes totally to Raw Cutured veggies by Rejuvenative Foods. You will notice a difference in how well you feel the first day you eat them. You can also make your own. I bought a book called Wild Fermentation that explains it all. You can also read my past posts on raw cultured veggies.