Health Benefits of Eggs
10 Health Benefits of Eggs
Some of you may have eaten eggs over the Easter weekend so I thought I'd post ten health benefits of eggs (and it doesn't count if they were chocolate eggs!)
1. Eggs are great for the eyes. According to one study, an egg a day may prevent macular degeneraton due to the carotenoid content, specifically lutein and zeaxanthin. Both nutrients are more readily available to our bodies from eggs than from other sources.
2. In another study, researchers found that people who eat eggs every day lower their risk of developing cataracts, also because of the lutein and zeaxanthin in eggs.
3. One egg contains 6 grams of high-quality protein and all 9 essential amino acids.
4. According to a study by the Harvard School of Public Health, there is no significant link between egg consumption and heart disease. In fact, according to one study, regular consumption of eggs may help prevent blood clots, stroke, and heart attacks.
5. They are a good source of choline. One egg yolk has about 300 micrograms of choline. Choline is an important nutrient that helps regulate the brain, nervous system, and cardiovascular system.
6. They contain the right kind of fat. One egg contains just 5 grams of fat and only 1.5 grams of that is saturated fat.
7. New research shows that, contrary to previous belief, moderate consumption of eggs does not have a negative impact on cholesterol. In fact, recent studies have shown that regular consumption of two eggs per day does not affect a person's lipid profile and may, in fact, improve it. Research suggests that it is saturated fat that raises cholesterol rather than dietary cholesterol.
8. Eggs are one of the only foods that contain naturally occurring vitamin D.
9. Eggs may prevent breast cancer. In one study, women who consumed at least 6 eggs per week lowered their risk of breast cancer by 44%.
10. Eggs promote healthy hair and nails because of their high sulphur content and wide array of vitamins and minerals. Many people find their hair growing faster after adding eggs to their diet, especially if they were previously deficient in foods containing sulphur or B12.
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Nutritionists are taking a fresh look at the health benefits of eggs.
By Star Lawrence WebMD Feature
Reviewed By Louise Chang, MD
How could anyone hate an egg? Yet, 20 years ago, the dietary naysayers decided that the cholesterol in eggs was translating to artery-clogging cholesterol in the blood -- and eggs splattered onto the no-no list.
Finally, some scientists at the Harvard School of Public Health looked at a population of 117,000 nurses who had been followed for eight to 14 years and found no difference in heart disease risk between those who ate one egg a week and those who ate more than one egg a day.
Another study reported in the Journal of the American College of Nutritionfound that eggs tended to satisfy obese and overweight subjects more than a bagel breakfast with an equal calorie count. Eggs might even be a good diet food!
Nutritionists Weigh In
"I am very happy with eggs," Ruth Kava, PhD, RD, director of nutrition for the American Council on Science and Health, tells WebMD. "Eggs have a high nutritional value, an excellent quality of protein, are only 70 to 80 calories each, and are not high in fat."
Patricia Kendall, PhD, RD, professor and food and nutrition specialist at Colorado State University in Fort Collins, tells WebMD she agrees that the cholesterol in eggs should not put them on the roster of the forbidden.
On the Food Guide Pyramid put out by the government, eggs are part of the protein-rich food group of meat, poultry, fish, dry beans, eggs, and nuts. Two to three servings from this group are recommended each day. One egg would be equal to one-third to one-half of a serving from this group.
The American Heart Association says that one egg a day is acceptable, but to keep in mind the cholesterol in that egg along with the other foods that you eat in the day. Those with heart disease, diabetes, or a high level of LDL 'bad' cholesterol should probably choose a small or medium egg vs. larger ones which have more cholesterol. Remember that egg whites have no cholesterol.
A large egg represents less than 4% of the daily calorie intake of a person eating 2,000 calories a day; it provides 10% of a person's daily recommended protein, and valuable iron, B vitamins, and minerals, including the folate recommended for pregnant women.
Egg Safety
People who eat eggs have been shown to have better diets, perhaps -- scientists speculate -- because they tend to eat breakfast, especially eggy ones. "Eggs have both fat and protein," Kendall adds. "These increase a sense of fullness."
Of course, questions have also been raised about food-borne illnesses involving eggs. One out of 20,000 eggs may be contaminated with salmonella, bacteria that can cause extreme intestinal distress. The secret to avoiding this is to cook eggs thoroughly, Kendall says. Eggs should also be stored appropriately in the refrigerator and promptly eaten after cooking.
"It's better not to have the yolk runny," Kava agrees. "The extreme elderly and immunosuppressed should be extra careful or not eat eggs."
Kendall says you can even get eggs that are pasteurized to kill bacteria inside the shells. To avoid hard cooking, the heat levels are kept low, but are still effective.
Benefits of Eggs
Pluses outweigh minuses:
Eggs are easy to prepare in a number of different ways. They even make recipes work by thickening things.
They have a long refrigerator shelf life.
They are relatively cheap.
They are delicious!
Egg Varieties
"An egg is no longer just an egg," Kendall says.
Go to any upscale food store or even the local supermarket and you have choices, and not just the sizes.
"You have your cage-free, free-range, or free-roaming," Kendall notes. This refers to the way the chickens (yes, they come first) are raised. "People got the idea that letting chickens wander around and eat the occasional bug was more humane, and because the birds were exposed to less ammonia, made the eggs taste better." Gourmets, in fact, rhapsodize over the depth of flavor of free-range eggs. On one web site, an egg lover remarked: "My neighbor's chickens are feasting on grasshoppers and I always look forward to the eggs he brings. They are huge with bright golden yolks that stand high above thick whites."
Lower-cholesterol eggs are produced, Kendall says, by feeding the chickens a vegetarian diet and oils such as canola oil. "A large egg can have 300 milligrams of cholesterol," she notes, "and this sort of feeding can bring that down to 200 milligrams."
Omega-3 eggs are also being engineered. Chickens are fed flaxseed, marine algae, and fish oil, with the intent to increase the egg content of omega-3 fatty acids.
Brown eggs, beige, even gray or lavender, are trendy now. This is not a dye job, but a function of the type of chicken, Kendall explains. White-shelled eggs are produced by hens with white feathers and ear lobes. Brown-shelled eggs come from chickens with red feathers and red ear lobes. Do different colored eggs taste better? The answer lies in the mouth of the omelet eater.
Those eggs in a carton, already broken and mixed, are another category on the shelves. Sometimes, Kendall says, these are considered low cholesterol because they are all whites with a little yellow coloring thrown in. Read the labels, nutritionists advise.
Kava says she is very distressed by the "demonization" of eggs. Her mother had a serum cholesterol of 202 and was told by her doctor's nurse to cut down on eggs.
"This infuriated me!" Kava exclaims. "Eggs are great for healthy older people, high in protein, easy to chew."
Published Mar. 10, 2006. Originally published Feb. 27, 2006.
SOURCES: Ruth Kava, PhD, RD, director of nutrition, American Council on Science and Health, New York City. Patricia Kendall, PhD, RD, professor, food and nutrition specialist, Colorado State University, Fort Collins. Egg Nutrition Center web site: "The Good News About Eggs Just Got Better." Vander, J. Journal of American College of Nutrition, 2005; vol 24: pp 510-515. American Council on Science and Health web site: "What's The Story? Eggs." Strat's Place web site. American Egg Board web site: "Learn More About Eggs." American Heart Association web site: "Eggs."
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