Where do you live? Is there a Sprouts market there? They have lactose free yogurt, cream cheese and sour cream with the brand name Green Valley. I think the yogurt is low fat but not fat free—but not sure since I don’t have any in my fridge right now. I do have some yogurt made by Yoplait (called Q) that is made with 2% milk and is 99% lactose free. I actually thought that all lactose products were allowed to say they were lactose free if they only have that little lactose. Anyway I am getting off of my original concern about kefir and acid reflux.