fermented drink kefir in a glass jar on a light background. probiotic cold fermented dairy drink

acid bacteria berries beverage bifidobacterium bio bottle breakfast calcium close dairy diet dietary dieting drink fatless fermentation fermented food fresh glass grains health healthy homemade jar kefir kephir keto ketogenic lacteal lactic meal microflora milk morning natural nutrient organic pasteurized portion probiotic product protein traditional white yoghurt yogourt yogurt