Mars High Protein Low Sugar Bar 57g - Pack of 12Features Introducing our new Mars Salted Caramel low sugar protein bar which combines the unmistakable delicious taste of Mars chocolate with a soft layer of salted caramel. This sweet and salty addition to our low sugar range contains 18g of protein per bar and just 2g sugar. Only 196 calories per bar Not suitable for vegetarians. Perfect to carry you between meals, or as a great post workout snack. One box contains 12 individually wrapped bars.