According to the principles of traditional Chinese medicine (TCM), you should avoid the following types of foods, especially when being treated for breast cancer:

• Charred and deep-fried foods. Both cause a condition known as "internal heat" in the stomach, which can cause a functional disorder of this organ. (It is especially important to avoid these foods when undergoing chemotherapy and radiation, since the treatments already create excess heat in the body.)
• Raw vegetables. Eating too many raw vegetables weakens the stomach and spleen, two organs essential for breast-cancer prevention. Although some nutrition is invariably lost when cooking vegetables, raw vegetables take a great deal more energy to digest than cooked vegetables.
• Cold or iced foods and beverages. Your stomach functions best when the food you eat is warm. Consuming cold foods and beverages day after day can unbalance the stomach function.