? Stay away from high-fat and high-sugar diets:
A high-fat diet will increase the risk of breast cancer. The reason may be that a high-fat diet leads to weight gain and obesity. Excess fat can be converted into estrogen, increasing the sensitivity of breast tissue to estrogen. The increase of estrogen level increases the incidence of hormone-dependent breast cancer. At the same time, a high-fat diet may advance menarche and increase the risk of breast cancer.
? ? Studies have proved that feeding high-fat food to experimental animals can increase the incidence of breast tumors, and the diet structure of high-fat western countries is closely related to the increase of breast cancer incidence.
? A large number of epidemiological and experimental studies show that drinking alcohol is a risk factor for breast cancer. The mechanism of drinking alcohol as a risk factor for breast cancer may have three aspects:
First, improve the level of estrogen in human blood and the sensitivity of estrogen receptors, especially estrone and dehydroepiandrosterone sulfate, so as to enhance the stimulation to breast tissue;
? Secondly, it improves the incidence of normal breast tissue-hyperplasia of mammary glands-atypical hyperplasia-breast cancer;
? Thirdly, after drinking alcohol, a large number of toxic substances such as reactive oxygen species are produced, which can interfere with DNA repair, increase chromosome aberration and gene point mutation, and provide conditions for the occurrence of breast tumors.
Long-term intake of carbohydrates may make the plasma insulin-like factor and blood sugar at a high level for a long time. Insulin-like factor may promote the occurrence of breast cancer, so a high-sugar diet may be a risk factor for breast cancer. The carcinogen heterocyclic amine will be produced in the frying process of food, which may increase the occurrence of breast cancer. ? ?