Radiation effects in gelatins have been investigated by electron spin resonance spectroscopy. gelatins of different types have been taken and radiation effects have been compared. The ESR spectra of irradiated gelatins were quartet having complicated hyperfine structure. The spectra are thought to be superposition of component spectra arising due to •NHCO (I) and •CONH (II) radicals. Radical (I) Gives component quartet while radical (II) gives component singlet. Superposition of these two components will result in the experimentally observed spectrum. Area under ESR spectra were measured using double integration methods and the values are compared. Among the four gelatins investigated, it was observed that general grade gelatin degrades heavily than the others.