The current webpage makes additional research available concerning how various nuts, seeds, beans and grains or their major bioactive components influence HER2+ breast cancer and treatment with trastuzumab (Herceptin). At the bottom of this webpage are links to studies relating to the beneficial nuts, seeds, beans and grains listed in Foods to eat & avoid for HER2+ and Foods to eat & avoid while on trastuzumab.
Nuts, seeds, beans and grains inhibit HER2+ breast cancer through the actions of certain polyphenols, the hormone melatonin, or the trace mineral selenium:
Please read the applicable food webpages when making your own food lists since these pages contain important advice, food rankings (e.g., highly recommended, recommended in moderation), consumption limits, and other pertinent information.
The beneficial compounds listed above should be obtained by eating the applicable nuts, seeds, beans or grains rather than taking supplements. When a beneficial micronutrient is administered at low doses by consuming food, it is likely to have subtle chemopreventive effects, whereas the same compound administered at high doses is more likely to have pharmacological effects, with possible unwanted outcomes. For example, quercetin has been reported to contribute to the growth of estrogen-induced mammary tumors once the tumors were established in female rats.