Dr. Michael Greger presents the evidence for broccoli being the best vegetable for breast cancer survival. That is it most significantly reduces the chances of recurrence for those who have previously been diagnosed with breast cancer and so increases survival rates.
I incorporate broccoli into the “anticancer” green smoothies I make for my wife to consume twice a day. I have no scientific evidence that it will make a difference for her (her breast cancer is stage 4) but it certainly can’t hurt. And her energy, appetite and weight are all very good considering what she’s dealing with.