Breast cancer patients can certainly eat sugar, breast cancer patients are not completely unable to eat sugar, sugar itself is one of the nutrients that every human body must, the key is the amount of intake, that is, for the degree of mastery. For breast cancer patients, if the sugar is excessive intake is really unhealthy, especially patients with diabetes, or already obese patients. Because diabetes and obesity are inextricably linked to cancer, especially breast cancer, breast cancer patients who eat too much sugar are more likely to have a recurrence of the disease, and the cancer cells themselves also prefer to eat sugar. However, as long as there is no excessive sugar intake, there is no need to worry about eating a small amount of sugar normally, because every cell in the human body needs sugar, that is, normal human tissues also need sugar as a component of basic nutrient metabolism, including the staple food will become glucose in the body in the end. If there is no appropriate amount of sugar intake, some of the proteins and other nutrients eaten by the patient are difficult to be absorbed effectively. Therefore, breast cancer patients can eat sugar, eat a small amount of sugar, control the intake of sugar will not be too big a problem.