get out your Welch's grape juice
 

not her2+ breast cancer specific, but:
New Study Suggests Concord Grape Juice May Provide Protection Against Breast Cancer

According to a new study, published in the Journal of Medicinal Foods, natural compounds in Concord grape juice protected healthy human breast cells from DNA damage. Healthy human breast cells were exposed in a test tube to an environmental carcinogen, benzo(a)pyrene, that is able to initiate a chain of events leading to breast cancer. However, the introduction of Concord grape juice compounds blocked the connection of the carcinogen to the DNA of the healthy cells.

“The purple grape compounds demonstrated the capacity to inhibit DNA adduct formation as well as to increase the activity of enzymes that metabolize and detoxify carcinogens, and suppress potentially cancer-causing oxidative stress,” said Dr. Keith Singletary, nutrition professor and lead researcher at the University of Illinois. “These new data suggest that anthocyanins present in Concord grape juice, as well as some other fruits and juices, warrant further study for their breast cancer chemopreventive potential.”

This research is the latest to suggest that Concord grape juice may be of value in maintaining breast health by suppressing oxidative stress and inhibiting DNA damage to cells that can lead to the initiation of cancer, or in helping to slow the progression of breast cancer by slowing the multiplication of cancer cells.

SOURCE:
Journal of Medicinal Foods, August 2007

My platelets are dropping due to chemo and someone recommended that I drink red grape juice to help this problem. I'm going to give it a try and see what happens. They were very specific that it had to be the red grape juice.