hi guys! I have been using your fermented butter/cod liver oil for the past year - especially for my kids who seem to have cavity prone teeth. Their teeth are doing MUCH better since they have been taking the cod liver oil (thank you!) I DO have a question, though. One of my three kiddos seems to have problems taking the oil - he takes it, and within 12 hours he has a stomach ache and sulfur smelling gas and burps (gross - sorry) It has happened with both batches of oil that we have purchased. I would really love for him to continue taking the oil! Do you have any suggestions or thoughts? thanks!