There is evidence that avocados may prevent cancer. In the lab, consuming avocados slows the growth of prostate cancer cells. It also appears to reduce the side effects of chemotherapy as well as increase the effectiveness of the treatment. Even if they have only been tested in test tubes, it may just be that antioxidants and healthy fats may help fight cancer and chemotherapy side effects. Additionally
, lutein and zeaxanthin may protect the skin from UV rays (you still need sunscreen!) and repair damage.