Gyro (food) fatty enough, strips of fat are added so that the roasting meat always remains moist and crisp. The rate of roasting can be adjusted by varying the strength of the heat, the distance between the heat and the meat, and the speed of the spit rotation, allowing the cook to adjust to varying rates of consumption. The outside of the meat is sliced vertically in thin, crisp shavings when done. In Greece it is generally served in an oiled, lightly grilled piece of pita, rolled up with sliced tomatoes, chopped onions, fries, and tzatziki. Gyro (food) A gyro or gyros
Food energy of a food calorie, that is often used in chemistry and in physics.) Within the European Union, both the kilocalorie ("kcal") and kilojoule ("kJ") appear on nutrition labels. In many countries, only one of the units is displayed; in Canada and the United States labels spell out the unit as "calorie" or as "Calorie". Fats and ethanol have the greatest amount of food energy per gram, 37 and 29 kJ/g (8.8 and 6.9 kcal/g), respectively. Proteins and most carbohydrates both have about . The differing energy density of foods (fat, alcohols, carbohydrates and proteins) lies mainly in their varying proportions