Most of them are vitamins, trace elements, minerals, amino acids and peptides. Most of them are vitamins, trace elements, minerals, amino acids and peptides. When a healthy diet is maintained, the content of these nutrients from food is sufficient to meet the body’s needs, so excessive intake of such supplements may not be able to prevent and treat breast cancer. When it comes to tea, tea itself has certain anti-tumor effects, especially green tea is rich in theophylls, which can inhibit the growth of tumor cells, therefore, breast cancer patients can drink tea. In addition, drinking tea can also counteract the harm caused by smoking and has the effect of diuretic and reducing edema. Studies have found that drinking tea can also reduce the damage caused by radiotherapy and has a certain anti-radiation effect.