Lhassi is an Indian yogurt drink which usually has a bit of sugar (and often rosewater or mango), it's blended up with ice cubes & goes well with curries. I started playing with it and came up with some drinks that I find keep me going for hours.
(note on chia: it's a seed, can be hard to find; very high in fiber, not bad for calcium & iron. You soak it first and it gets very glutinous. It was a staple in north & south American native diets - many of these groups now suffer from unbelievable diabetes levels, and it's thought that chia was one of a few native foods which kept any such tendencies in check; some athletes use it because it delivers sustained energy & slows absorption of carbs). It's excellent for maintaining blood sugar levels. Each night I mix 2 T (78 cals) with about 1.5 cups water, and I consume that over the course of the next day - you can add it to anything, it has no flavour).
(note that SALBA, which is becoming the in-thing, is a cultivar of chia - same plant species (salba hispanica) but they just used the white seeds (most are black). They SAY it is a lot better for you, which I suppose is why it costs twice as much as chia, but until I see the science I'm quite happy with plain old chia!!)
So, I mix a serving of low fat organic yogurt (less tart than regular), a half cup or so of the chia mix, and whatever other ingredients I want (see below). After that's thoroughly blended I add four or five ice cubes and blend until they're nearly gone. Cold, refreshing, and fill with long-lasting energy.
1. 1/2 ounce peanuts, a small banana, cinnamon, 1/2 tsp. freshly ground cardamom (you can barely taste the peanuts - an ounce would be more peanutty).
2. 1/4 cup pureed dates (I cook them & puree them with a little water to use to sweeten various things), cardamom.
3. 1/2 a small roasted acorn squash (Really!), cinnamon, cardamom, 5 prunes or some date puree. Has a bit of a creamy pumpkin pie taste.
4. frozen berries - a cup.