There are obviously too many opinions on this matter. But, we say, listen to your body, and not the internet! We know our brew and that's why we say you can start with a bottle a day, and go up to 3 or even more bottles a day based on how your gut responds and feels. Although not harmful, consuming too much too soon, if you're not ready, can result in bloating and an upset stomach. We suggest you decide your intake and increase depending on your liking and how your body responds. Know that there's no real standard lower or upper limit here like we have for medicines or tonics or nutraceuticals, it's food and your gut knows how to adapt and balance things in your body especially when you consistently include kombucha and fermented foods in your daily diet.