Lifeway Foods Inc., Morton Grove, Ill., launched Protein Kefir, a line extension designed to aid in muscle recovery after exercise.

Rockin’ Refuel, a brand of Shamrock Farms, Phoenix, expanded its portfolio with Rockin’ Refuel Varsity.

Protein is hot. According to a recent survey by the U.S. Dairy Export Council, Arlington, Va., 54% of U.S. consumers say they are trying to get more protein in their diet. One way for consumers to boost the protein content of their diet is via protein drinks. Whether they are high-acid or low-acid, chocolate or vanilla, fruit-flavored or coffee-based, virtually all protein drinks contain a sweetener.