Breast cancer patients can eat water chestnut because the exact cause of breast cancer, as the most common malignant tumor of the breast, is not clear so far. Clinical epidemiological statistics show that the high risk factors for the development of breast cancer, related to diet, are mainly a high-fat diet, that is, too oily food, so for patients at high risk of breast cancer, try to avoid eating foods that are too oily, spicy and stimulating to avoid that they will Therefore, for patients at high risk of breast cancer, avoid eating too greasy, spicy and stimulating foods, which may trigger breast, or lead to breast cancer recurrence or metastasis. In addition to this, the high risk factors for the occurrence of breast cancer are mainly related to early menarche, late menopause and obesity, and also have a certain family genetic susceptibility. As a food, water chestnut does not contain any fat, so breast cancer patients can eat water chestnut without worrying about causing the occurrence or recurrence of breast cancer or metastasis.