Here is a recipe I used for tzatziki, just slight variation.
The recipe I used was the following (though you could omit the olive oil if you want, but it is a good fat and a little is in it for the amount of it that is made) Feel free to omit the red wine vinegar too if you don't have it. Oh also, recipe calls for lowfat plain yogurt, I used fatfree plain yogurt.
1 container (16 ounces) plain lowfat yogurt
1/2 English (seedless) cucumber, not peeled, seeded and finely chopped plus a few thin slices
1/1-2 teaspoons salt
1 to 2 garlic cloves, chopped
1 tablespoon chopped fresh mint or dill plus additional sprigs
1 tablespoon extra virgin olive oil
1/2 teaspoon red wine vinegar
1/4 teaspoon ground black pepper
Spoon yogurt into sieve lined with cheesecloth or coffee filter set over bowl; cover and refrigerate overnight. Transfer drained yogurt to medium bowl and discard liquid.
Meanwhile, in colander set over bowl, toss chopped cucumber with 1 teaspoon salt. Let drain at least 1 hour at room temperature, or cover and refrigerate up to 8 hours. In batches, wrap chopped cucumber in kitchen towel and squeeze to remove as much liquid as possible. Pat dry with paper towels, then add to bowl with yogurt.
With flat side of chef's knife, mash garlic to a paste with remaining 1/2 teaspoon salt. Add garlic, chopped mint, oil, vinegar, and pepper to yogurt and stir to combine. Cover and refrigerate at least 2 or up to 4 hours. Serve chilled or at room temperature, topped with cucumber slices and mint sprigs.
Yield: about 1-1/2 cups
Per tablespoon: about 17 calories, 1 gram protein, 1 gram carbohydrate, 1 gram total fat (0 gram saturated), 1 mg cholesterol, 182 mg sodium.
You can't out-exercise poor eating habits.