A new Australian study published in the International Journal of Cancer reveals that just 10 grams of mushrooms (that’s less than one button mushroom) per day can help protect against breast cancer. The research found that additional protection was also provided by green tea.

The research, conducted by Dr Min Zhang of the University of Western Australia, involved more than 2000 Chinese women. The study investigated the role of traditional diets and their affect on the breast cancer rate of Chinese women, which is up to five times lower than that found in many Western nations.

Researchers compared a comprehensive dietary survey of 1009 cancer patients with an equal number of healthy women of the same age. Their findings revealed that those women who consumed the most fresh mushrooms were around two-thirds less likely to develop breast cancer in comparison to those who did not consume mushrooms. An additional decrease in breast cancer risk was also seen in those women who ate mushrooms and drank green tea.