Amy, some yogurts come in 4 oz containers. The Carb Control ones do.
Personally, I didn't like all the other crap that they put in the little cartons (things like gelatin???) so I switched to organic plain yogurt. I eat 8oz a day mixed with SF syrup or SF Jam (in Phase II). I haven't had any problems.
The guidelines for losing belly fat using dairy are 3 8oz servings of milk or yogurt a day. I drink two 8 oz servings of skim milk and eat one 8 oz serving of yogurt.