GlenOaks Farms, Laguna Beach, Calif., is introducing an improved formula to its drinkable yogurt line. This new formula has increased vitamin C, protein and calcium, with the addition of 32 milligrams of omega-3 fatty acids per serving. The new enhancements will be sold in all six flavors — strawberry, strawberry/banana, peach, raspberry, vanilla and guava/papaya/pineapple.