I have long liked kefir's magical probiotic mix, and had received a recommendation to drink ryazhenka for even more potent probiotic benefits. Ryazhenka is kefir that is then baked. It's tough to drink by itself, but as a smoothie base, it rocks. I combined it with Tune It Up Protein -- a slightly chalky-tasting powder, but its no-junk ingredients and high protein (15g per scoop) make up for the hint of barium flavor :-p -- and some things in the fridge/freezer, and surprisingly had an easily-digestible smoothie that kept me full for 5 hours!
Much better than a post-smoothie sugar crash.
4 oz. plain organic ryazhenka
1/2 scoop of vanilla Tune It Up Protein
1/2 cup frozen pineapple
handful of fresh strawberries
handful of frozen blueberries
few chunks of watermelon
some Granny Smith apple (who was Granny Smith, anyways?)
big splash of Harmless Harvest coconut water (it is super cheap at Costco and is the best flavor. Do not accept the imitators!! Also, their customer service is stellar.)
Puree until liquidy enough to drink.
Drink it up! Feel full and happy and energized!