Wednesday, May 30, 2007

Milk and Hormones

We are always buying the chepest milk. Common milk is cheap, organic milk is expensive. There were concerns of price and health. The former we are clearly aware of, yet the latter remains to be a hypothesis, at least to us. We and some of our friends went into an argument of whether we should buy organic milk from now on. I wasn't in a position to argue much, so here I am collecting some knowledge.

Hormone is a chemical messenger that regulates target cells activity.

Estrogens are a group os steroid compounds functioning as the primary female sex hormone.

Present in both men and women, estrogens are usually present at significantly higher levels in women of reproductive age.

Birth control pills is a combination of an estrogen and a progestogen. High doese of estrogen inhibites ovulation.

33 times more of a signature estrogen compound (estrone sulfate) is contained in mild from modern dairy farms than milk from a non-pregnant cow.

Skim milk contains less hormones.

Homogenization breaks up fat molecules and become capsules for proteins that bypass digestion.

Organic milk, as opposed to so-called hormone free milk, is produced from organic dairies that go through a rigorous certification process with the Department of Agriculture. Absent this certification process, the claim that milk is "hormone free" is absolutely meaningless.