I have been taking kefir (home-made from natural grains) as part of the treatment. I feel good and I am getting better everyday without allergic reaction. In theory, Lactose in kefir can feed candida but as these good bacteria can colonize the colon so that candida will have no chance to grow. Also , kefir can break down milk lactose and protein so it becomes easlier for the body to digest. I have tried bio yogurt but it made my infection worst and made me quite ill. yogurt and kefir are not the same.
I have known many people with candida infection and other bowel problems have their condition improve greatly after taking kefir.