Following its launch of 24-ounce containers of grassmilk yogurt earlier this year, Organic Valley, La Farge, Wis., is adding 6-ounce cups of organic grassmilk yogurt to its line this September. Grassmilk yogurt is made with milk from cows that only eat grass. The whole-milk yogurt will come in four flavors, including strawberry, plain and vanilla. The strawberry flavor contains 160 calories, 5 grams of fat, 20 grams of sugar and 6 grams of protein per cup. The suggested retail price is $1.69 per cup and the product is available nationwide.