Up to 27g of protein per shake and less than 160 calories per bottle Formulated with green tea extract and L-Carnitine PhD Diet Whey Ready To Drink is a delicious, high protein shake that can be used at any time of the day. Diet Whey Ready To Drink has been formulated with whey protein, green tea extract and L-Carnitine, to create the perfect on-the-go shake. Diet Whey Ready To Drink contains up to 27g of quality whey and milk protein per 330ml serving. Diet Whey is the ideal supplement to support a healthy lifestyle or calorie controlled nutritional plan and contains the naturally occurring essential branched chain amino acids (BCAA's) leucine, isoleucine and valine, which we can only gain through our diet. These essential amino acids are not produced by the body.