Dannon Oikos Plain Nonfat Greek Yogurt is anything but plain. Dannon Oikos is nonfat yet deliciously thick and creamy. Oikos Greek yogurt is a creamy-thick yogurt made in the traditional Greek manner by straining out some of the whey, or liquid portion of the yogurt, leaving more of the milk solids. A delicious and nutrient-dense snack that helps make you be unstoppably you.