For example, colon cancer is related to a high fat low fiber diet. The relationship of diet to breast and ovarian cancer is less well understood. The relationship of diet to endometrial cancer is also well understood. Obese women convert hormones secreted by the adrenal gland into estrogen in their fat cells. So, for obese women it's like eating a handful of estrogen everyday.
Poor nutrition is related to head and neck cancers and cervical cancer.
This relationship is probably related to the absence of essential vitamins and minerals. However, supplementation with the micronutrient, for example beta carotene, is not sufficient to prevent these cancers. However, consuming the vegetable like a carrot will result in a reduction of these cancers. Because of this you will most probably be told that you need to have the area biopsied. There are other causes of microcalcifications, such as sclerosing adenosis which are benign.