Maxi nutrition protein milk chocolate 250ml protein milk is a great tasting refreshing shake that is packed with 20g of protein goodness to keep your muscles in tip top shape after all protein is the stuff youre made of and is one of the building blocks of life so its essential to keep your body topped up in order to take on lifes challenges benefits of protein milk protein milk contains a blend of skimmed milk proteins that naturally contain whey and branched chain amino acids bcaas