Kefir is another option. Like yogurt, kefir contains much less lactose than milk, and betagalactosidase is also harbored by its live organisms.Lactobacillus
organisms are commonly considered to be probiotics, which are defined as live bacteria that improve intestinal microbial balance and enhance health.
There are some new products out there that have recently been introduced by Horizon Organic Dairy of Bolder, CO. Their organic sour creams contain live and active cultures of L. acidophilus and B. bifidus
, as does their cottage cheese.
If you need to avoid these foods, yet would like the good bacteria, get some capsules of products containing them at the health food store.
You might want to study both Probiotics and Prebiotics and check out www.am-fe.ift.org/t1p5.php.
Dietary fiber, prebiotics, and probiotics are examples of the "functional foods" concept and they theme of the IFT Basic Symposium, "Dietary Fiber, Prebiotics, Probiotics and their Role in Intestinal Health.