Regulating your digestion?

has anyone tried that danactive or dannon activia i.e. supposed to help regulate your digestion? did it work? is here anything for people who are allergic to dairy? I would get through a healthy nutritious diet (organic when you can), avoid anything white (sugar, starch, rice & speedily foods) & drink lots of water. I would also try some Yoga, sometimes stress can own havoc on your body.
I tried it. Did not help much. Just ingestion more veggies and fruits.