Mommie, What's CLA?
When asked
by a inquisitive child, "What do cows eat?" the question should be
correctly answered with "grass."
Cows know where to get the nutrients they need. As humans, our minds
recall where we get the nutrients we need, thus we tend to eat those things
over and over. Fast-food joints also
supply a modicum of nutrients that our brain recalls. Junk food chains attract customers with the additional lure of
fat and salt. As one food chemist once told me, "Unless we put fat or
sugar or both in the product, no one wanted to eat it."
A cow may
have more sense than we do. Hence, the better question for little Johnnie to
ask is, "Why do cows eat grass?"
Cows eat
grass because it has what the cow needs most -- a higher concentration of CLA.
The
moniker CLA stands for a good fat called "conjugated linoleic acid"
that may be a potent cancer fighter that a cow passes along to humans in their
meat and dairy contributions. In animal studies, small amounts of CLA have
blocked the growth of cancer.
Although
human CLA research is in its infancy, a few studies have suggested that CLA may
have similar benefits in people. One recent survey determined that women with
the most CLA in their diets had a 60 percent reduction in the risk of breast
cancer. The study was titled "Inverse Association between Dietary and
Serum Conjugated Linoleic Acid and Risk of Breast Cancer in Postmenopausal
Women." Other European studies have linked a diet high in
CLA with a lower risk of breast cancer.
French researchers measured CLA levels in the breast tissues of 360
women. Once again, the women with the most CLA had "a 74 percent lower
risk of cancer."
A lean burger from grass-fed cattle
has two-and-a-half times more conjugated linoleic acid than an equally lean
hamburger from cattle raised in a feedlot. Turkeys and wild
game also contain higher levels of CLA than pigs or chickens.
Cows that get all their nutrients
from grass produce milk with 86 percent more vitamin E, according to a recent
study. The standard dairy diet for cows consists of large amounts of corn and
soy. Organic dairies raise their cows on pasture and supplement them with
organic concentrate; others keep their cows indoors and feed them organic
concentrate and stored grasses. The more freshly grazed grass in a cow’s diet,
the more vitamin E, omega-3 fatty acids and CLA found.
But for the
quick fix of consumption through pills or recycled grease, CLA could be risky
and perhaps fruitless in results. Studies are under way.
All cheese made from the milk of
grass-fed cows is rich in CLA. However, the cheese-making process itself can
increase or decrease the amount. The highest amounts of CLA were found in soft
cheeses aged approximately three months. Longer aging periods reduced CLA. Brick, Swiss, muenster, Colby and blue
cheese have the highest amounts of CLA.
The true power of cheese lies in
organics.
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