Ultimate Nutrition Syntha Gold Series Ultimate Nutrition Syntho Gold is a multi-stage blend of high-quality whey protein, micellar casein, milk protein, and egg protein. When you add medium- and slow-digesting proteins to fast- digesting whey, muscle protein synthesis remains elevated much longer than with just whey alone. Since muscle protein synthesis leads to muscle growth, extending muscle protein synthesis over a longer period of time can have a huge impact on your overall muscle gains and recovery. Each scoop of Ultimate Nutrition Syntho Gold delivers 20 solid grams of fast, medium and slow digesting proteins. No matter what your goals are, from weekend warrior to hardcore bodybuilder, the proteins in Ultimate Nutrition Syntho Gold will support you around-the-clock.