Also known as: huang chi, milk vetch, astragalus membranaceus.
Potential uses: It is thought that astragalus can improve immunity and liver health and reduce the risk of cancer.
Usual dose: 500 milligrams 3 times per day.
Are there any risks? No significant side effects have been reported. If you're taking a drug that suppresses your immune system, do not take astragalus.
What does the research show? No studies have been done in humans on astragalus and breast cancer.