generative ai pouring homemade kefir buttermilk or yogurt with probiotics yogurt flowing from glass bottle on whit

acidic ayran bacteria bottle bowel buttermilk classic copy dairy diet digestion digestive drink eating fermentation fermented flora flowing food fungus gastrointestinal glass gut health healthy intestine kefir kephir lactobacilli lassi lassie liquid microbial microbiology milk mushrooms pouring probiotic products refreshment sour space superfood tibetan tract white wood wooden yoghurt yogurt yougurt zoogloea