Higher levels of omega-3 and omega-6 fatty acids are linked with a lower risk of several types of cancer, including brain, colon, stomach, and lung cancer, according to a study of over 250,000 participants. The findings highlight the potential of these "healthy fats" in cancer prevention, regardless of BMI or lifestyle. The study also suggests that omega-6 benefits are particularly effective for younger adults, especially women. Results open the door to dietary adjustments that may aid in reducing cancer risk.