Mushrooms and green tea may be key ingredients in the fight against breast cancer.

According to a study of 2,000 Chinese women, the more fresh and dried mushrooms the women ate, the lower their risk of developing breast cancer.

The rates were even lower for women who drank green tea on a daily basis.

Lab research shows mushroom extracts have anti-tumor properties that stimulate the immune system's cancer defenses, while green tea contains important antioxidant compounds.

The study is published in this month's "International Journal of Cancer."