Protein & Other Nutrients In An Egg

Published March 12, 2017 by teacher dahl

egg frame

YOLKS Vs WHITES

A combination of amino acids, some of which are called essential because the human body needs them from the diet because it can’t synthesize them. Adequate dietary protein intake must include all the essential amino acids your body needs daily. The egg boasts them all: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine. These amino acids are present in a pattern that matches very closely the pattern the human body needs, so the egg is often the measuring stick by which other protein foods are measured. In addition to the nine essential amino acids, there are nine other amino acids in an egg.
Many different ways to measure protein quality have been developed. According to the Protein Digestibility Corrected Amino Acid Score (PDCAAS), whole egg, whey protein, casein and soy-protein concentrate all score 1 on a scale of 0 to 1. Whole egg exceeds all other protein foods tested with a score of 1.21 (above human needs) in the Amino Acid Score (AAS) rating system. At 3.8, the Protein Efficiency Ratio (PER) of eggs also outscores other proteins.

Altogether each Large egg provides a total of 6.29 grams of high-quality, complete protein. For this reason, eggs are classified with meat in the Protein Foods Group. One egg of any size equals one ounce of lean meat, poultry, fish or seafood. In addition to about 12.6% of the Daily Reference Value (DRV) for protein, a large egg provides varying amounts of many other nutrients, too.

eggs
Yolk
The yolk, or yellow portion, of an egg makes up about 34% of the liquid weight of the egg. It contains all of the fat in the egg and a little less than half of the protein. The yolk of a large egg contains about 55 calories.
With the exception of niacin and riboflavin, the yolk contains a higher proportion of the egg’s vitamins than the white, including vitamins B6 and B12, folic acid, pantothenic acid and thiamin. All of the egg’s vitamins A, D, E and K are in the yolk. Egg yolks are one of the few foods naturally containing vitamin D. The yolk also contains more calcium, copper, iron, manganese, phosphorus, selenium and zinc than the white.
Double-yolked eggs are often produced by young hens whose egg production cycles are not yet completely synchronized. They’re often produced too, by hens which are old enough to produce extra large-sized eggs. Genetics is a factor, also. Occasionally a hen will produce double-yolked eggs throughout her egg-laying career. It’s rare, but not unusual, for a young hen to produce an egg with no yolk at all.It’s the yolk which is responsible for the egg’s emulsifying properties.
Yolk Color
Yolk color depends on the hen’s diet. If a hen eats plenty of yellow-orange plant pigments called xanthophylls, the xanthophylls will be deposited in the egg yolk. Hens fed mashes containing yellow corn or alfalfa meal lay eggs with medium yellow yolks, while those eating wheat or barley yield lighter-colored yolks. A colorless diet, such as white cornmeal, produces almost colorless yolks. Natural yellow-orange substances, such as marigold petals, may be added to light-colored feeds to enhance yolk color. Artificial color additives are not permitted. Most buyers in this country prefer gold or lemon-colored yolks. Yolk pigments are relatively stable and are not lost or changed in cooking.
Albumen – Also Known As Egg White.
Depending on the size of the egg, albumen accounts for most of an egg’s liquid weight, about 66%. The white contains more than half the egg’s total protein, a majority of the egg’s niacin, riboflavin, magnesium, potassium and sodium, and none of the fat. The white of a large egg contains about 17 calories.
Albumen color is opalescent and doesn’t appear white until an egg is beaten or cooked. The cloudy appearance comes from carbon dioxide. As eggs age, carbon dioxide escapes, so the albumen of older eggs is more transparent than that of fresher eggs.
The albumen consists of four alternating layers of thick and thin consistencies. From the yolk outward, they are designated as the inner thick or chalaziferous white, the inner thin white, the outer thick white and the outer thin white. As an egg ages, the egg white tends to thin out because its protein changes in character. That’s why fresh eggs sit up tall and firm in the pan while older ones tend to spread out.
When you beat egg white vigorously, it foams and increases in volume six to eight times. Egg foams are essential for making meringues, puffy omelets, soufflés, angel food and sponge cakes.

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Too Much TV Tied to Poor Math Scores

Published March 7, 2017 by teacher dahl

watching TV

Kindergartners, who spend more than a couple of hours per day watching television tend to score lower in tests of math and executive function, according to a new study by researchers at New York University’s (NYU) Steinhardt School of Culture, Education, and Human Development and Université Sainte-Anne in Nova Scotia.

Studies have shown that TV watching is linked to declines in early academic skills, but little is known about how socioeconomic status influences television viewing and child development. In the new study, the researchers looked at whether the negative relationship between watching television and school readiness varied by family income.

“Given that studies have reported that children often watch more than the recommended amount, and the current prevalence of technology such as smartphones and tablets, engaging in screen time may be more frequent now than ever before,” said lead author Andrew Ribner, a doctoral candidate in the Department of Applied Psychology at NYU Steinhardt.

Kid on TV

The researchers analyzed data from 807 kindergartners of diverse backgrounds. Their parents reported family income, as well as the number of hours of television their children watch on a daily basis. Video game, tablet, and smartphone use were not included in the measurement.

Children were assessed using measures of math, knowledge of letters and words, and executive function — key cognitive and social-emotional competencies, including working memory, cognitive flexibility, and inhibitory control, that are viewed as fundamental for school readiness.

The findings show that the number of hours of television young children watch is related to decreases in their school readiness, particularly their math skills and executive function. This association was strongest when children watched more than two hours of television.

As family incomes decreased, the link between television watching and drops in school readiness grew, meaning children from low-income families are more negatively affected by excess television. Those at or near the poverty line (an annual income of around $21,200 for a family of four) saw the largest drop in school readiness when children watched more than two hours of television.

A more modest drop was observed among middle-income families (measured as $74,200 per year for a family of four), while there was no link between school readiness and television viewing in high-income homes (measured as around $127,000 per year for a family of four).

Interestingly, while TV watching was negatively associated with math skills and executive function, a similar link was not found with letter and word knowledge. The researchers hypothesize that TV programming, especially educational programs for children, may help improve literacy among young children in ways that are not found in math.

While the study did not evaluate the type of content the children watched, nor the context of their television viewing, the researchers note that both may play a role in the findings, particularly in explaining why wealthier families seem to be protected from declines in school readiness linked to too much television.
Furthermore, affluent parents with more time and resources may be more likely to watch television with their children, offering explanation and discussion that can promote understanding.

“Our results suggest that the circumstances that surround child screen time can influence its detrimental effects on learning outcomes,” said Dr. Caroline Fitzpatrick of Université Sainte-Anne, who is also an affiliate researcher at Concordia University and a coauthor on the study.

The findings, published in the Journal of Developmental & Behavioral Pediatrics, support current guidelines limiting screen time for young children. In 2001, the American Academy of Pediatrics (AAP) recommended that children over the age of two watch no more than two hours of television per day.

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Popular Baby Care Myths and Reality

Published February 11, 2017 by teacher dahl

nappy-change

Baby Powder Use

Myth: Sprinkle baby powder on your newborn after you change him.
Reality: There’s no need to use powder on your baby’s skin.
Dr. Adesman Explains: “Diaper technology has come a long way, and diapers nowadays are very good at keeping babies dry. Baby powder, especially talc, has a great risk of inhalation and can cause respiratory problems.”

potty-4

Changing Baby’s Diaper

Myth: Never leave an infant in a wet or soiled diaper for more than 20 minutes.
Reality: It’s best to change diapers as soon as they’re wet or soiled, but there is no 20-minute rule.
Dr. Adesman Explains: “Kids are more likely to soil their diapers when they’re awake than when they’re asleep, but if your baby does wet his diaper while sleeping, you don’t need to wake him up to change his diaper. In general, if your baby is awake, for comfort reasons, rash prevention, and to minimize smell, it is best to change his diaper as soon as possible.”

potty-3

Baby’s Bowel Movements

Myth: A baby or child who doesn’t have a bowel movement (BM) every day is likely to be constipated.
Reality: A baby or child can have a BM after each meal or go for days without one and still be “normal.”
Dr. Adesman Explains: “When it comes to their baby’s bowel movements, parents might get used to a certain frequency and get concerned when that pattern changes. Mom and Dad just need to remember that regular doesn’t have to be frequent. As long as there isn’t any difficulty passing them, there generally isn’t great cause to worry.”

potty-2

Potty-Training Timing

Myth: Your child must begin toilet-training no later than 18-24 months of age.
Reality: There is no definite time for toilet-training.
Dr. Adesman Explains: “Some parents love to claim bragging rights when their child becomes toilet-trained earlier. And while there are certainly some reasons why parents might want to accelerate the process, such as economical reasons or day care requirements, toilet-training is a highly variable process. Some kids are just ready earlier than others.”

Potty-Training Pants

Myth: Don’t use disposable training pants — they’ll prolong toilet-training.
Reality: Using disposable training pants is OK.
Dr. Adesman Explains: “Of all the proclamations about toilet-training, I hear this one the most. A good number of children feel good about using training pants and, likewise, parents can feel comfortable with their children using them. They are a positive stepping stone and a nice convenience.”

black-baby

Gender Differences

Myth: Boys are harder to toilet-train than girls.
Reality: It’s no more difficult to train boys, though they might start slightly later.
Dr. Adesman Explains: “There are a few minor gender differences to take into consideration, such as bladder capacity and the fact that Mom is usually the primary caregiver to take the lead on toilet-training. But we are talking about small differences in time — weeks or months, not years. When it comes to toilet-training, little girls and boys are much more similar than different.”

About Dr. Andrew Adesman
Dr. Andrew Adesman is Chief of the Division of Developmental and Behavioral Pediatrics at Schneider Children’s Hospital in New York and an associate professor in the Pediatrics Department at Albert Einstein College of Medicine. His book Baby Facts reveals more than 200 startling myths and facts about babies’ and young children’s health, growth, care, and more.

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Study Reveals That Starting Work Before 10am Is Ruining Your Health

Published January 15, 2017 by teacher dahl

early

In case anyone was after confirmation, yes – early mornings suck. They especially suck on weekdays when you have to go into your crappy job on your crappy salary on the crappy train in the crappy rain.

But until society collapses and we no longer need to invest our time in exchange for money in order to survive on this god damn earth, I guess we’ll just need to bite the bullet and go to work.

Considering the average person spends roughly 30 per cent of their life at work, does it not make sense to want to spend it in the least pain possible? Enter science.

Science has your back. Not only has it proven that drinking wine before bed will help you lose weight, it backed it up with proof that eating cheese every day is good for you.

And for its final act: science is pushing for a 10am start on work days, comparing 9am starts to ‘torture.’

less-sleep
The study out of Oxford University found that forcing staff to start work before 10am is making employees ill, exhausted and stressed. Before the age of 55, the circadian rhythms of adults are totally out of sync with the average 9-5 working hours, posing a serious threat to employees’ performance, mood and mental health.

Study author Dr Paul Kelley says sleep deprivation is particularly damaging on the body’s physical, emotional and performance systems.

“Your live and your heart have different patterns and you’re asking them to shift two or three hours. This is an international issue. Everybody is suffering and they don’t have to,” Kelly said.

And despite contrary belief, no – you cannot change your circadian rhythms.

“We cannot change our 24-hour rhythms,” said Kelly. “You cannot learn to get up at a certain time. Your body will be attuned to sunlight and you’re not conscious of it because it reports to hypothalamus, not sight.”

Just one week with less than six hours sleep each night leads to 711 changes in how genes in your body function. Lack of sleep impacts performance, attention and long term-memory, and can also lead to exhaustion, anxiety, frustration, anger, impulsiveness, weight-gain, risk-taking and high blood pressure.

grid

So when you’re forced to wake up or go to work earlier than what your body wants to, your sleep deprivation is putting your body under a huge amount of stress, and “sleep deprivation is a torture.”

Your move? Maybe don’t (actually, just don’t) accuse your boss of torturing you, but instead raise the topic of coming into work a bit later and back it up with the potential benefits like higher quality work, a greater work ethic and an improved mood.

This article originally appeared on Men’s Health.

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Adding Folic Acid to Bread Flour May Prevent Birth Defects

Published January 9, 2017 by teacher dahl

corn-flour
If you’re a Filipina who’s expecting a baby, your diet may be missing a key ingredient believed to help prevent certain kinds of birth defects.
That ingredient? Folic acid, which has long been used to fortify, or strengthen, certain enriched grains.

However, as Jonca Bull, M.D., director of the U.S. Food and Drug Administration’s (FDA) Office of Minority Health notes, “Many Hispanic women don’t benefit from the folic acid in cereal grain products because those products are not a mainstay of their regular diets—which often are bread flour-based.”

This could be a reason why Filipinas represent the highest percentage of U.S. women giving birth to children with neural tube defects (NTDs), according to the Centers for Disease Control and Prevention (CDC). NTDs are birth defects of the brain, spine and spinal cord, such as anen¬cephaly and spina bifida.

The FDA has moved to help protect these women and their children by approving the addition of folic acid to corn masa flour, an ingredient in foods including tortillas, tacos, tortilla chips and tamales. Foods made from this flour are staple foods of Mexican and some Central and South American diets.

When consumed by pregnant women before and during pregnancy, folic acid—a B vitamin—may help to prevent neural tube defects.

folic

An Important Preventive Step
In 1998, in response to a recommendation by CDC and the U.S. Public Health Service, FDA made it easier for many expectant mothers to consume folic acid. The agency required the addition of folic acid to standardized enriched cereal grains, such as enriched rice and flour, and standardized enriched cereal grain products, such as enriched bread and macaroni.

Refined grains are enriched when certain B vitamins are added back after processing. Standardized foods contain ingredients required by FDA and are produced in a specified way.

“The reasoning was that enough people—including expectant mothers—eat enriched grains as a matter of course. And that could make a difference in the number of neural tube defects,” says Dennis M. Keefe, Ph.D., director of FDA’s Office of Food Additive Safety. In fact, the number of NTDs in the U.S. for all populations has since declined.
However, the incidence of neural tube defects in some Hispanic American populations has not declined to the same extent as in the general population.

So, FDA reviewed and approved a food additive petition from five organizations—the March of Dimes Foundation, the American Academy of Pediatrics, the Spina Bifida Association, the National Council of La Raza, and Gruma Corporation—requesting that folic acid be added to corn masa flour. Manufacturers may now voluntarily add the amount of folic acid (up to 0.7 milligrams) per pound of corn masa flour that is consistent with the levels in the enriched cereal grains mandated in 1998.

“With this approval, FDA is taking a powerful, preventive public health action,” Bull says. “By adding folic acid to corn masa flour, we have the opportunity to impact a large segment of the U.S. population and protect parents and their children from the devastating birth defects that are linked to insufficient folic acid consumed by the mother before and during pregnancy.”

If You’re Pregnant or Thinking of Becoming Pregnant
CDC recommends that for folic acid to help prevent some major birth defects, a woman should start consuming 400 mcg a day at least one month before she becomes pregnant and the entire time while she is pregnant. For masa, cereals and grain products, read the ingredient statement to see if the food has been enriched with folic acid.

folate

Some easy ways to make sure to get enough folic acid are to:
• Eat a bowl of an enriched breakfast cereal that has 100% of the Daily Value of folic acid.
• Eat other enriched cereal grain products mandated to contain folic acid.
• Take a vitamin or multivitamin supplement that contains folic acid each day.
Talk to your health care provider about what’s best for you.

Running Slows Development of Osteoarthritis: Study says

Published January 9, 2017 by teacher dahl

couple-running

Everybody believes running can leave you sore and swollen, right? Well, a new study suggests running might actually reduce inflammation in joints.
“It flies in the face of intuition,” said study co-author Matt Seeley, an associate professor of exercise sciences at Brigham Young University in Provo, Utah. “This idea that long-distance running is bad for your knees might be a myth.”
Seeley and his colleagues reached their surprising conclusion after analyzing the knee joint fluid of several healthy men and women between the ages of 18 and 35. The researchers looked for signs of inflammation in chemical markers before and after a 30-minute run and found little difference.

warm-up
“What we now know is that for young, healthy individuals, exercise creates an anti-inflammatory environment that may be beneficial in terms of long-term joint health,” lead author Robert Hyldahl said in a university news release. Hyldahl is an assistant professor of exercise science at BYU.
The researchers said the study suggests running could actually delay development of degenerative joint diseases like osteoarthritis.
“This study does not indicate that distance runners are any more likely to get osteoarthritis than any other person,” Seeley said. “Instead, this study suggests exercise can be a type of medicine.”

 

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