FOOD FOR THOUGHT
Mark R. Vogel
Epicure1@optonline.net
Red Meat, White Lies
In Old English times, the term “meat” meant any edible food.
During the medieval period this definition narrowed to only land animals. This
inevitably arose out of religious dictums forbidding consumption of certain land
animals on particular days of observance. Some maintain that definition today
and some take it a step further, employing the term “meat” to denote only red
meat, e.g., beef or lamb. It’s astounding how arbitrary our definitions of
things are. Even more fascinating, a capricious definition, as opposed to the
true nature of the entity, can wield tremendous influence over peoples’ reaction
to it. Somehow society has generated a conception of red meat as bad and white
meat as good. The pork industry, endeavoring to capitalize on this misguided,
health-crazed vilification of red meat, now purports pork as the “new white
meat”.
By definition, meat is animal flesh, any animal, particularly
its muscular tissue. I emphasize the muscular structure because with the
exception of organ meats, when you eat beef, chicken, pork, lamb, venison, fish,
snails, crabs, or even a rattlesnake, you are consuming the muscular structure
of that animal.
Nevertheless, current dichotomous thinking distinguishes
“meat” from non-meat by color. Red meat is red because of myoglobin, an iron
containing protein that transfers oxygen from the blood to the muscles of the
animal. Muscles which are used more will contain more myoglobin, (since they
require more oxygen), and will be redder or darker in color. Take chicken for
example. A chicken uses its legs far more than it’s breast muscles and hence,
they are darker. Moreover, there are different kinds of myoglobin and some are
redder than others. pH, (a measure of acidity vs. alkalinity), also affects meat
color. Beef is redder than pork because of the amount and types of myoglobin and
the pH. And these chemical differences are not good or bad, healthy or
unhealthy.
For those that define “meat” as only red meat, color is only
the surface discriminator. The underlying differentiator is usually fat content
and cardiovascular health. The whole fat issue and its relation to health is a
complex web whose spider is fat-phobia. There are many types of fats,
(polyunsaturated, saturated, monosaturated, trans fatty acids, etc.), which in
turn have a variety of effects on the body. The average person doesn’t take the
time to learn all the details. It’s easier to just lump “fat” into one generic
concept and then avoid it like the plague, hence, fat-phobia.
Polyunsaturated fat, monosaturated fat, and Omega-3 fatty
acids have been purported to reduce cholesterol, and possibly prevent cancer and
lower blood pressure. Saturated fat is the fat that can raise cholesterol
levels.
Thus, it is not the fat content per se of any particular meat
that is important, but the amount of saturated fat. According to a study from
the Archives of Internal Medicine, (Vol. 159, June 28, 1999, p. 1331-1338),
subjects consuming lean red meat and subjects consuming only white meat, had no
differences in their cholesterol levels. This was because the discrepancy in
their saturated fat intake was too small to make a difference on their serum
cholesterol levels. (Three ounces of round steak has about 3 grams of saturated
fat while three ounces of skinless chicken breast has one). This is not an
isolated study.
Moreover, while some cuts of meat are higher in saturated
fat, all red meat is high in protein, iron, B vitamins, zinc, choline, and
selenium, a mineral implicated in preventing cancer and improving cardiovascular
health. Ounce for ounce beef has twice the thiamine and riboflavin, three times
the iron, five times the zinc, and seven times the B12 of chicken. Beef also
contains conjugated linoleic acid, (CLA), which has inhibited cancer growth in
laboratory animals. Half of the fat in beef is monosaturated fat, (like olive
oil), which has been hailed as having many health benefits. Less than half of
the total fat in beef is saturated fat and one third of it is stearic acid, a
particular saturated fat that has no effect on cholesterol.
Now granted, if your goal is to lose weight, all fats are
equally high in calories. Even I would recommend leaner cuts and in moderation.
But if your concern is heart disease, keep in mind though that numerous other
factors, other than fat, play a role. Most physicians agree that genetic makeup
is a significant determinant. Some people’s biochemistry will produce higher
amounts of cholesterol no matter what they eat. Conversely, we all know
individuals who have ate rich diets, engaged in other risky practices and lived
to a ripe old age. Genes are a whimsical and unfair bestowment of fate.
Genetics aside, your age, sex, physical activity, stress,
weight, substance use, environmental pollutants, personality, and other medical
conditions, all influence whether you’ll be visiting a cardiologist someday. Yet
I’ve met individuals who ignore many controllable factors, who smoke or drink to
excess, and yet incessantly monitor their dietary fat. Trust me, all the fish
and vegetables in the world will not save you if genetics are not on your side
and you’re ignoring all of the other variables.
In summary, our beliefs about certain foods, which in turn
drive our behaviors, are often arbitrarily influenced by socio-cultural factors,
dietary fads, advertising, misinformation, ignorance, etc. Although excessive
fat consumption may pose some health risks, our society has elevated its
malevolence to a disproportionate degree. Meat is not poison. It is a nutritious
food that can be salubriously consumed in moderation.