If you can buy it or are willing to make it raw milk yogurt containing lactobacillus bulgaris or acidophilus may be digested more readily, especially if it prepared from healthy cows or goats fed on unsprayed food, and served very fresh.
"How and When to Be Your Own Doctor"
Dr. Isabelle A. Moser with Steve Solomon
Saint-Ivel England Fresh dairy cream cheese containing lactobacillus acidophilus.
"The Complete Book of Cheese"
Robert Carlton Brown