Hi Remi, Thank you for your concise post re. Florastor. I have had a York [University] Test done on food intolerances [from blood] which is becoming more accepted by the establishment in the UK. I have a high intolerance to 'yeast' - by far my highest score amongst many foods, so feel I should avoid a yeast related product for the time being, but thank you for taking the time to post. Love and Light, Deotima.