![Leena Mahtani on Twitter: "Kefir is a fermented milk drink made with starter “grains”. #Kefir is a good source of calcium, vitamin B12, magnesium, vitamin K2, biotin, folate, enzymes, and probiotics, and Leena Mahtani on Twitter: "Kefir is a fermented milk drink made with starter “grains”. #Kefir is a good source of calcium, vitamin B12, magnesium, vitamin K2, biotin, folate, enzymes, and probiotics, and](https://pbs.twimg.com/media/FpIrj1MXsAE0yMM.jpg)
Leena Mahtani on Twitter: "Kefir is a fermented milk drink made with starter “grains”. #Kefir is a good source of calcium, vitamin B12, magnesium, vitamin K2, biotin, folate, enzymes, and probiotics, and
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Nutrients | Free Full-Text | The Many Faces of Kefir Fermented Dairy Products: Quality Characteristics, Flavour Chemistry, Nutritional Value, Health Benefits, and Safety
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