Mars Hi-Protein Turn up the taste, with the latest launch from Protein by Mars! Packed with 20g of protein, MARS. Hi-Protein delivers the distinctive flavour of one of the nation’s favourite confectionary brands. The new bar is filled with a delicious layer of nougat, topped with a thick layer of caramel and covered in milk chocolate. A protein game changer, MARS Hi-Protein raises the taste buds bar!