So, why not just reach for the yogurt already in your fridge?
"There are about 10 to 20 strains of probiotics [in kefir], which is three times what you would find in yogurt," Schmitt says. "So, anyone that has any gastrointestinal issues or if you've recently been on antibiotics, this would be a great food source for you."
#OWNSHOW host Danisha Danielle Hoston says kefir sounds too good to be true and wonders what the downsides are. According to Schmitt, there aren't many.
"It's actually moderate in calories. Per serving, kefir has about 100 calories -- not too shabby. It also has about 10-and-a-half grams of protein," she says. "[And] although it is made from cow's milk, it is 99 percent lactose-free."
That said, Schmitt does caution against getting caught in a sugar trap that can cancel out all of kefir's benefits.
"There are some instances where there are a lot of added sugars in kefir, just as you would find in certain yogurts, because they try to flavor them with strawberry and different flavorings," she says. "Look at the different brands, try to find the least amount of sugar or just go with a plain version."
Even better? You don't have to do anything elaborate to incorporate kefir into your diet. Drink it straight, add it into smoothies, mix it with oats or simply top it with berries for dessert, Schmitt suggests. However you consume it, kefir is definitely a powerful superfood worthy of adding to your grocery list.