Perhaps you've skipped this breakfast gem for fear of raising your
cholesterol. Free yourself from that misconception and indulge in the
treasure that a good ol' egg has to offer. Three eggs per day over a
12-week period for obese participants on a carbohydrate restricted diet
actually lowered the bad LDL cholesterol and raised the good HDL(1).
Another study showed that two eggs per day for six weeks did not affect
cholesterol levels or brachial artery endothelial function (2). Yet
another study demonstrated that people eating equal to or more than 4
eggs per week had lower cholesterol levels than those eating less than
or one egg per week (3).
That aside, eggs are packed with
vitamins A, D, E, B2, B6, B9, iron, calcium, phosphorous, potassium and
choline (4). Now, when you think choline, think brains and babies. One
egg supplies 20% of the daily recommended intake of choline, and it is
used as a building block for phospholipids used in all cell membranes
and is particularly integral in brain and nerve health. Share with all
pregnant women you know that choline from eggs is essential for proper
fetal brain development and decreased neural tube defects, and it is a
necessary constituent in breast milk. In addition, choline proves
important in: memory function, reducing breast cancer risk, and
maintaining normal homocysteine levels. It also lowers: plasma
C-reactive protein, tumor necrosis factor, and interleukin 6. In fact,
in one study, lack of dietary choline resulted in fatty liver, muscle
damage and some organ dysfunction (5).
Lutein and zeaxanthin are
the carotenoids that imbue the bright sunshine to the yolk, so think
eyes and a healthy macula when the rays beam your way. Lutein levels
from eggs beat both cooked spinach and lutein supplements by three times
in blood serum, and 12 weeks of eating eggs increased subjects'
zeaxanthin serum levels and macular pigment (6,7).
Tryptophan and
tyrosine are two amino acid egg antioxidants. Tryptophan, with a little
help from a carbohydrate meal, crosses the blood brain barrier and is
converted to serotonin. Serotonin, a potent mood enhancer (as many
anti-depressants induce elevated levels of) can be then converted in the
pineal gland to melatonin, which promotes sleepiness(8). Tyrosine is a
precursor to epinephrine, norepinephrine, dopamine and thyroid hormones
all modulating your go-go, good feelings, and alertness.
Now
before you go out and buy out the market, keep in mind that pasture
raised, free-grazing hens produce a superior quality egg and are less
prone to salmonella contamination (9). Free hens lay eggs with 3 times
more vitamin E, 7 times more beta-carotene, 1/3 less cholesterol, 1/4
less saturated fat, 2/3 more vitamin A, and 2 times more omega-3 fatty
acids (10).
A great bargain, eggs are easy on the wallet and
packed with goodness. So, be brave, be an egghead, and see what these
capsules of dense nutrition can do for you.
1.Mutungi G, Ratliff
J, Puglisi M, et al. Dietary cholesterol from eggs increases plasma HDL
cholesterol in overweight men consuming a carbohydrate-restricted diet. J
Nutr 2008;138:272-6.
2.http://www.sciencedirect.com/scienc...
3.Song WO, Kerver JM. Nutritional contribution of eggs to American diets. J Am Coll Nutr 2000;19:556S-62S.
4. http://en.wikipedia.org/wiki/Egg_(food)
5.http://www.cholineinfo.org/pdf/you_...
6.http://www.ars.usda.gov/is/pr/2004/...
7.http://jn.nutrition.org/content/136...
8.http://en.wikipedia.org/wiki/Trypto...
9. http://www.naturalchoices.co.uk/Sal...
10. http://www.motherearthnews.com/Real...
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