What is protein mousse the usn protein mousse is a great tasting dessert which provides you with the nutrients to support your fitness challenge and to help you shape up ideal to take in the evening or whenever youre craving a guilt free snack the usn protein mousse offers a delicious alternative to please your sweet tooth what are the benefits finding that indulgent snack to not only satisfy your nutritional intake but to also satisfy your cravings can be difficult for this reason weve f