he iodine number is expressed as the number of grams of iodine. absorbed per 100 grams of fat or oil. It provides information about the level of unsaturation present in the sample, with higher iodine numbers indicating a higher degree of unsaturation and lower iodine numbers indicating greater saturation. It helps determine the oxidative stability, shelf life, and nutritional quality of fats and oils, as well as their suitability for various culinary and industrial applications