3. 花椰菜

Sulforaphane -- a compound in broccoli¹ -- reduced the number of breast cancer stem cells (which cause cancer spread and recurrence) in mice, according to research from the University of Michigan.

密歇根大学的一项研究显示，花椰菜中包含的萝卜硫素能够减少老鼠体内的乳腺癌肝细胞（导致癌细胞扩散和复制）。

Eating broccoli may not deliver enough sulforaphane to achieve the same effect, but to get the most you can, eat your broccoli raw or briefly² steam or stir-fry the green florets.

虽然平常吃花椰菜可能没法达到同等效果的量，但是我们可以尽量多吃，生吃、加热或者清炒花椰菜都是可以的。

4. 鲑鱼

Taking fish-oil supplements for at least 10 years can shrink your risk of ductal carcinoma, the most common type of breast cancer, according to a study in Cancer Epidemiology, Biomarkers & Prevention.

生物与预防癌症流行病学的一项研究结果显示，吃至少十年的鱼油可以降低罹患最常见乳腺癌——导管癌的概率。