Honey, just start with small quantities.... Gotta do baby steps, your body doesn't like the state it is in, but it is used to it.... Kefir are the good guys.... There will be a battle, just let the good guys take hold.... The road to health isn't easy but it is worth the fight..... You know when you are on the road to getting healthy, your body will try to reject what you are doing..... You have to keep going forward.... You are out of your comfort zone.... It is worth it.... You are gong to hurt, you are going to be grouchy, you are going to be angry.... This is denial.... Just remember Kefir is your friend it will back you it will die for you... So let it do battle for you.... It really is worth the discomfort, aggravation etc... Once Kefir is established and taken command you will feel 100% better... Take my word,,, It is nicer to feel better