Drink milk make some dangerous increase of cancer A cup is relatively suitable every day
According to " health newspaper ", increasingly many experiment materials and showing to the research that the adult carries on, it is correlated with the dangerous increase of some cancers takes placing to drink the milk. In order to find out the reason that this kind of relevance happens, researchers have carried on a large amount of chemical analysis to the micro- composition in the milk.
13 kinds of estrogen metabolites
According to the report of the national cancer research institute of U.S.A., are detected ketone, female metabolite of two alcohol and these two kinds of estrogen of 13 kinds of female steroid in the milk. In a cup of milk ' 235 ml) Includes 0.5 2.4 writing brush one microgram of estrogen metabolite. When to start and close the signal material that the supersession reacts hormone guides the gene of cells in the human body. Micro- hormone and hormone metabolite that the milk includes will interfere with production and function of endogenous hormone of the human body. Take 2 - female steroid ketone of hydroxyl as examples, it is active and supreme hormone metabolite in the milk.
Grand sex hormone
Still detected testis ketone and other grand sex hormone in the milk. In a cup of milk, nearly have 6 writing brush one microgram of testis ketone and other grand sex hormone. Estrogen increases the material that tumour caused danger, but grand sex hormone is a factor of causing dermatosises such as analeptic,etc.. In the milk, contain a kind of grand sex hormone making the receptor quantity of estrogen increase - two ketone of 5a - pregnant steroid at least. And the receptor quantity of estrogen increases and can stimulate the growing of tumour cells.
Cell growth factor
A cup of milk nearly includes 18 micrograms of insulin and one kind of growth factors - a (IGF-1) ,This kind of growth factor correlates with height and twins' birth rate. Research proves, drinking the milk can increase the density of IGF-1 in the blood and and can totally occupy the position in the breast is organized of estrogen. In other words, it is in the absence of other factors, IGF-1 can make cells grow. When estrogen exists, the appearance of IGF-1 can cause the hyperplasia of mammary gland and increase the ill danger of breast cancer.
A cup of milk is relatively suitable every day
36 experts from nutrition epidemiology and milk product of research institutions such as Harvard University,etc. reach common understanding recently, U.S.A. revised the edible guideline of milk in 2005 " Recommend adult every day to drink three cups of milk " It is unwise, the adult is more suitable when drinking a cup of milk every day.
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