Depends on your kefir. Kefirs are unpredictable and they CAN go bad. Just be careful with that stuff, or even let a lab analyze yours if you can. Drinking up to

Depends on your kefir. Kefirs are unpredictable and they CAN go bad. Just be careful with that stuff, or even let a lab analyze yours if you can. Drinking up to 50 billion organisms (in one glass) every day has the potential to shift your microbiome for the better, or the worse.