Goat milk kefir is a fermented dairy drink made from goat milk, kefir grains and sometimes sugar or other sweeteners. It is a probiotic-rich, tangy and slightly effervescent beverage with a similar consistency to drinkable yogurt. It contains beneficial bacteria, yeast and enzymes that aid in digestion and support the gut microbiome. It's also a good source of vitamins, minerals, and protein.