@dfoster85 - Probiotic yogurt does have a lot of advantages, but you have to be careful what you buy. Commercial brands often have a lot of added sugar. ("Light" brands often have *both* high fructose corn syrup and artificial sweetener! Gross!)
The big problem with adding sugar to yogurt is that it works to defeat your purpose - a diet high in sugar and other refined carbs actually encourages the growth of yeast. (So does using a lubricant with glycerin, so women prone to yeast infection should seek out a glycerin-free variety).
The solution is to buy plain yogurt by the tub - you can get fat-free, low fat, or whole milk if you want it really creamy - and add your own flavorings. That way, you can control the amount of sugar. (A little all-natural jam stirred in is delicious.) It will taste tangier than commercially sweetened yogurt.
You can also make your own yogurt, and it's easier than people think! Basically, you start with yogurt or commercial starter and use that to ferment your own milk.