I recently read an article whereby the dairy industry
insists you need three servings of dairy a day for strong
bones and good health. I have mixed feelings with this
statement. I believe that both the calcium and nutritional
benefits are important to your health especially in your
younger growth years.
I love a good bowl of cereal with fresh fruit and low
fat milk some mornings. But now with so many foods and
supplements to supply your daily calcium requirements, I
think three servings of dairy is a bit much.
But there are many questions now being raised about the
processing of milk. And some of the more serious
naturalists are suggesting drinking a more natural form of
milk such as raw milk. But to help you better understand
this basic food that often enters into our grocery carts I
provide the following information:
The milk you buy at the store goes through a lot of
processing. It's pasteurized to kill any dangerous
bacteria. It's homogenized to keep the fatty molecules from
separating from the protein molecules. It's even fortified
with vitamin D in hopes of making the natural calcium in
milk something your body can use.
As an informed health reader, you know that all this
processing must take its toll.
In the process of homogenization, the large fat
molecules within milk are forced through tiny holes at high
pressure. This essentially changes the composition of the
milk fat. Animal studies suggest that homogenized milk fat
is more difficult for the body to digest and use. 1
Fat isn't necessarily bad, but it's a good idea to be
suspicious of fats that have been altered from their
natural state.
In pasteurization, the milk is heated to a hot enough
temperature to kill most of the bacteria (both good and
bad) and other organisms within the milk. Unfortunately,
the heating process can also damage the vitamins and amino
acids naturally present in the milk, reducing its
nutritional value. Pasteurization may also increase
proteins in the milk that make it more difficult for your
body to absorb folate, an important B vitamin. 2
And of course, milk is fortified with vitamin D and
vitamin A. Your body needs vitamin D in order to properly
absorb calcium. In response to growing vitamin D
deficiencies, dairy farmers began adding vitamin D to
milk.
Unfortunately, the practice of fortification has been
inconsistent. Sometimes milk has much less of these
nutrients than stated, sometimes much more. Surveys show
that the practice of storing vitamins and when and how
vitamins are added to milk varies widely between dairies
and may make a difference in the final vitamin levels.
3
Milk, the Way Nature Intended
Milk in its natural, raw state is an excellent source of
vitamins, minerals, amino acids, fat, and protein. But raw
milk is not easy to come by. Grocery stores can't stock it.
In most state's, dairy farmers can't sell it.
So how do you go about getting raw milk without building
a barn and buying your own cow? One way is to buy a share
in a cow. That’s right…now there are timeshare cows! This
means that a farmer will sell you a percentage of a dairy
cow along with several other people. You and the other
folks with a stake in the cow will pay monthly for the
animal's care. In return, you'll get your share of the
milk.
I believe this is a little extreme for getting your
milk…but to some it’s quite important. I would suggest you
visit the farm where your cow is being raised to make sure
that it is a clean environment (especially the milk
house).
This reduces the likelihood of getting milk that's
contaminated. Also, the cow should be grass-fed. A
grass-fed cow produces milk with plenty of good bacteria to
protect you from any bad bacteria. Finally, check to make
sure that the farmer regularly tests his (or should I say
your) milk to make sure it is clean.
Resources
1 Michalski MC, et al. "The supramolecular structure of
milk fat influences plasma triacylglycerols and fatty acid
profile in the rat," Eur J Nurt 2006; 45(4): 215-24
2 Wigertz K, et al. "Folate and folate-binding protein
content in dairy products," J Dairy Res 1997; 64(2):
239-52
3 Hicks T, et al. "Procedures used by North Carolina
dairies for vitamins A and D fortification of milk," J
Dairy Sci 1996; 79(2): 329-33