Another Reason To Ignore the Warnings About This Super Food
by
Joseph Mercola
Recently
by Joseph Mercola: 7
Reasons to Eat More Saturated Fat
The idea that
eggs, as a source of saturated fats, are unhealthy and promote heart
disease is a complete myth. While it's true that fats from animal
sources contain cholesterol, this is not necessarily something that
will harm you. On the contrary, the evidence clearly shows that
eggs are one of the most healthful foods you can eat, and can actually
help prevent disease, including heart disease.
For example,
one 2009
study discovered that the proteins in cooked eggs are converted
by gastrointestinal enzymes, producing peptides that act as ACE
inhibitors (common prescription medications for lowering blood pressure).
This certainly flies in the face of 'conventional wisdom,' and the
latest findings support the stance that eggs are in fact part of
a heart-healthy diet.
Although egg
yolks are relatively high in cholesterol, numerous studies have
confirmed that eggs have virtually nothing to do with raising your
cholesterol. For instance, research published in the International
Journal of Cardiology showed that, in healthy adults, eating
eggs every day did not produce a negative effect on endothelial
function (an aggregate measure of cardiac risk); nor did it increase
cholesterol levels.
A number of
people have cholesterol levels that are too low. While eating egg
yolks is a great idea for a number of reasons, it will not increase
your cholesterol level. If you need to do that a fairly reliable
method is to use coconut oil. Usually about 2-4 tablespoons a day
are required to increase your cholesterol.
The Egg
A Source of Health Promoting Antioxidants!
In the
featured study, the researchers examined the nutrient content
of egg yolks from hens fed primarily wheat or corn. They determined
that the yolks from these conventional chickens contain two amino
acids with potent antioxidant properties, which is important for
the prevention of cardiovascular disease and cancer:
- Tryptophan
- Tyrosine
Below, I will
discuss the nutrient content of organic, pastured eggs, which is
far superior to conventional eggs. What's really interesting is
that conventional eggs, despite their inferior nutritional content
still were found to be such a potent source of heart healthy
antioxidants! The analysis showed that two raw egg yolks have antioxidant
properties equivalent to half a serving of cranberries (25 grams),
and almost twice as many as an apple.
The research
also illustrates just how destructive cooking is. The antioxidant
properties were reduced by about 50 percent when the eggs were fried
or boiled, followed by microwaving, which resulted in an even greater
reduction.
Although not
specifically mentioned in the featured study, egg
yolks are also a rich source of the antioxidants lutein and zeaxanthin,
which belong to the class of carotenoids known as xanthophylls.
These two are powerful prevention elements of age-related macular
degeneration; the most common cause of blindness.
Additionally,
as a side note, the amino acid tryptophan is also an important precursor
to the brain chemical serotonin, which helps
regulate your mood, and tyrosine synthesizes two key neurotransmitters,
dopamine and norepinephrine, which promote alertness and mental
activity. I mention this to remind you that the potential health
benefits of eggs certainly go far beyond heart health...
Not All Eggs
are Created Equal
Eggs are also
an incredible source of high-quality protein and fat nutrients
that many are deficient in. And I believe eggs are a nearly ideal
fuel source for most of us.
However, there
are two caveats:
- Free-range
or “pastured” organic eggs are far superior when it comes to nutrient
content, and
- Cooking
destroys many of these nutrients, so ideally, you’ll want to consume
your eggs raw (but ONLY if they’re pastured organic,
as conventionally-raised
eggs are far more likely to be contaminated with disease-causing
bacteria such as salmonella)
An egg is considered
organic if the chicken was only fed organic food, which means it
will not have accumulated high levels of pesticides from the grains
(mostly GM corn) fed to typical chickens.
Additionally,
testing
has confirmed that true free-range eggs are far more nutritious
than commercially raised eggs. In a 2007 egg-testing project, Mother
Earth News compared the official U.S. Department of Agriculture
(USDA) nutrient data for commercial eggs with eggs from hens raised
on pasture and found that the latter typically contains:
- 1/3 less
cholesterol
- 1/4 less
saturated fat
- 2/3 more
vitamin A
- 2 times
more omega-3 fatty acids
- 3 times
more vitamin E
- 7 times
more beta carotene
The dramatically
superior nutrient levels are most likely the result of the differences
in diet between free ranging, pastured hens and commercially farmed
hens.
Should You
Refrigerate Your Eggs?
Before we get
into the issue of eating raw versus cooked eggs, let's review the
ideal storage method for your eggs. Contrary to popular belief,
fresh pastured eggs that have an intact cuticle do not require refrigeration,
as long as you are going to consume them within a relatively short
period of time.
This is well
known in many other countries, including parts of Europe, and many
organic farmers will not refrigerate their eggs. In the U.S., refrigeration
of eggs became the cultural norm when mass production caused eggs
to travel long distances and sit in storage for weeks to months
before arriving at your local supermarket. Additionally, the general
lack of cleanliness of factory farms increases the likelihood that
your eggs have come into contact with pathogens, amplifying the
need for both disinfection and refrigeration.
So, if your
eggs are fresh from the organic farm, with intact cuticles, and
will be consumed within a few days, you can simply leave them on
the counter or in a cool cupboard. The shelf life for an unrefrigerated
egg is around 7 to 10 days.
When refrigerated,
they'll stay fresh for 30-45 days. Keep this in mind when purchasing
eggs from your grocery store, as by the time they hit the shelf,
they may already be three weeks old, or older... USDA certified
eggs will have a pack date and a sell-by date on the carton, so
check the label. For more information about the date codes on your
egg carton, see
this link.
How to Eat
Your Eggs for Maximum Health Benefits
Quite a few
people are allergic to eggs, but I believe this is because they
are cooked. When you heat the egg, the protein changes its chemical
shape, and this type of distortion can easily lead to allergies.
When consumed in their raw state, the incidence of egg allergy virtually
disappears.
This distortion
may be further magnified depending on the manner in which it's cooked.
Microwaves
heat food by causing water molecules in it to resonate at very high
frequencies and eventually turn to steam, which heats your food.
But it also changes your food's chemical structure in ways that
regular cooking does not.
It is my belief
that eating eggs raw helps preserve many of the highly perishable
nutrients, and the results in the featured study confirms this as
raw egg yolk lost about half of its antioxidant potential
when boiled, fried, or worse, microwaved.
Remember that
most of the nutrition in an egg is in the yolk, not the white which
is merely protein and many have a texture problem when eating them
raw. The yolk on the other hand is loaded with nutrients, like bioflavonoids,
brain fats like phosphatidyl choline, powerful antioxidants and
sulfur. I have four raw egg yolks almost every day and throw away
the whites as I don't need the extra protein, but one can soft boil
or poach them I personally put my raw egg yolks over a bed of dehydrated
kale and cucumber pulp left over from juicing, along with a whole
avocado and some chopped red onions.
If you choose
not to eat your eggs raw, poached or soft-boiled is your next best
option. Aside from microwaving, scrambling your eggs is one of the
worst ways to cook them as it oxidizes the cholesterol in the egg
yolk, which may in fact harm your health.
What about
the Risk of Salmonella?
The CDC and
other public health organizations advise you to thoroughly cook
your eggs to lower your risk of salmonella, but as long as they're
pastured and organic, eating your eggs raw is actually the best
in terms of your health.
The salmonella
risk is primarily heightened when the hens are raised in unsanitary
conditions, which is extremely rare for small organic farms where
the chickens are raised in clean, spacious coops, have access to
sunlight, and forage for their natural food. The salmonella risk
can be high in conventional eggs, however, which is why I advise
against eating conventional eggs raw. One study by the British government
found that 23
percent of farms with caged hens tested positive for salmonella,
compared to just over 4 percent in organic flocks and 6.5 percent
in free-range flocks.
How to Find
Fresh Pastured Organic Eggs
The key to
getting high quality eggs is to buy them locally, either from an
organic farm or farmers market. Fortunately, finding organic eggs
locally is far easier than finding raw milk as virtually every rural
area has individuals with chickens. Farmers
markets are a great way to meet the people who produce your
food. With face-to-face contact, you can get your questions answered
and know exactly what you're buying. Better yet, visit the farm
and ask for a tour.
To locate a
free-range pasture farm, try asking your local health food store,
or check out the following web listings:
If you absolutely
must purchase your eggs from a commercial grocery store, look for
ones that are marked free-range organic. They're still going to
originate from a mass-production facility (so you'll want to be
careful about eating them raw), but it's about as good as it gets
if you can't find a local source.
I would strongly
encourage you to AVOID
ALL omega-3 eggs, as they are some of the least healthy for
you. These eggs typically come from chickens that are fed poor-quality
sources of omega-3 fats that are already oxidized. Also, omega-3
eggs perish much faster than non-omega-3 eggs.
For more tips
on eggs, including how to identify fresh, high-quality eggs, please
read Raw
Eggs for Your Health.
Source:
September
3, 2011
Copyright ©
2011 Dr. Joseph Mercola
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