If you're looking to satisfy your sour cream craving but want an ingredient with a little more nutritional value, turn to kefir instead. This dairy product is made with fermented milk from cows or ...

Kefir is an underrated dairy product that's full of healthy probiotics, but it does have a limited shelf life. Here's how ...

You can buy kefir plain or in a wide variety of flavors, like vanilla, blueberry, and strawberry at most supermarkets or health food stores like Whole Foods, Costco, Trader Joe's, and Publix.