Take a look around you. Does it seem to you that children are growing up faster around you? Not only in how they act or the clothing they wear, but
physically developing. Well it is happening around us. McCune-Albright Syndrome, and spina bifida with hydrocephalus are normal causes of early
puberty, but there are hormones, steroids, and chemical contaminants in our food and products that could be having an effect. It hasn�t become an
epidemic, though it is occurring and could become a larger problem soon.
Causes
Recent concerns over drug and hormone contamination of meat from animals treated with steroid growth enhancers have prompted many European countries
to ban the use of steroids in food animals as well as bannning the import of meat from countries where the use of steroids is legal.
Hormones are used in the food industry because they speed up the growth of the animal allowing the cycle of birth-to-slaughter time to speed up. In
some cases the hormones or steroids allow rapid weight gain and also increased milk production. This increases the profitability of the companies
within these industries.
In the 1950�s synthetic estrogens such as DES began being used to increase the size of cattle and poultry. It has been found that DES caused cancer
and was phased out of the food industry in the late 1970�s.
In 1993 the Food and Drug Administration (FDA) approved the use of recombinant bovine growth hormone (rbGH), or bovine somatotropin (rbST), for
increasing milk output in the dairy industry. Estimates done by the manufacture of this hormone claim that as many as 30% of cattle in the United
States use rbGH.
The FDA has approved 6 steroid hormones for use in the food industry for cattle and sheep, but not poultry or hogs. The approved include estradiol,
progesterone, testosterone, zeranol, trenbolone acetate, and melengestrol acetate.
Estradiol and progesterone are natural female sex hormones while testosterone is the natural male sex hormone. This may be one of the reasons behind
early puberty in populations consuming these animals.
Though large scale studies have not been done to detect if puberty is made to occur earlier due to ingestion of these treated animals, some small
scale studies have occurred. Puerto Rico�s government raised concern in the 1980�s because of the age of puberty was noticeably getting younger.
Studies of random chicken in one Puerto Rican market showed higher levels of estrogen in the food. Some of the Puerto Rican girls reaching puberty at
a younger age showed levels of zeranol in their blood. These reports could not be verified by additional labs and therefore was discounted. Similar
situations were reported in Italy.
Foods that were contaminated in Michigan in 1973, when a fire retardant containing the chemical polybrominated biphenyl (PBB) was accidentally mixed
with animal feed, have been associated with an early onset of menstruation and pubic hair in some daughters of the women exposed to PBB.
One of the most popular theories to why early puberty occurs involves insecticides that break down into compounds that may trigger estrogenic activity
in young girls. Others believe the increase in obesity rates of young girls is speeding up the process.
Hair products containing oestrogens, hormones, and placenta are also believed to cause premature puberty.
�Under FDA regulations, over-the-counter products containing hormones are drugs, and thus require specific approval. However, there appears to be a
grey area regarding products marketed before 1994. The FDA failed to respond to a request to clarify the position. At least five companies are still
making hormone-containing hair products, a source within the industry - who preferred not to be named - told New Scientist�
Is There Proof
Though small studies have found the above causes responsible for early puberty, why haven�t larger studies been performed? It relates to costs, time,
and a lack of pressure. Concentrated studies of this are very difficult to control and monitor, but there is no doubt that early puberty is occurring
more now than ever before. The cost of such a large study is very expensive and easily disputed. The amount of pressure put on the government to
perform these studies is minimal.
www.dazereader.com...
www.mercola.com...
www.ars.usda.gov...
envirocancer.cornell.edu...
www.med.umich.edu...
www.newscientist.com...
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[edit on 10/19/2004 by infinite8]