The best carbohydrate to protein ratio for a post-workout drink is 4:1 - four grams of carbohydrate for every one gram of protein. That is the perfect amount of carbohydrate to replace glycogen, the storage form of glucose, and of protein to replenish and build muscle. Several drinks provide that ratio, including Accelerade sports drink, Jamba Juice yogurt blends, and chocolate milk. Read about the 4:1 carb to protein ratio from the Guide to Sports Medicine at About.com.