This experiment was designed to study the effects of high level of fats and its source in the diets on the toxic or carcinogenic effects of N-nitrosodimethylamine (NDMA) and ethynyl estradion (EE) on the lung of experimental rats. This experiment was done in 72 rats given NDMA and or EE and fed diets of normal fat level or 15 percent fats, consisted of 10 percent animal or vegetable fats. Rats …