I followed the diet and protocol so I added kefir after three weeks. I would have added kefir after two weeks but my die-off was so bad that I waited. Many forum members say that kefir is an essential part of the cure so I’m glad you know how to make your own. Have you tried double-fermenting the kefir (secondary fermentation under airlock)? Supposedly this method makes the vitamins more bio-availble. I embedded a link with the process and more information above.