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Eating Egg Yolk Is Bad For Your Heart? Science Says The Opposite

Eating Egg Yolk Is Bad For Your Heart? Science Says The Opposite

Nutrition research suggests that eggs not only are a convenient source of nutrients but they can also play a pivotal role in weight management, muscle strength, healthy pregnancy, brain function, eye health, and more. In fact, according to a study done by the Egg Nutrition Center,[1] simply consuming one egg a day reduces the risk of stroke by as much 12 percent.

Egg Myth-Busting

Decades-old research has sustained and perpetuated the idea that eggs are bad and should be consumed sparingly if at all. This was largely because one large egg contains between 186 and 213 milligrams of cholesterol.[2] And all of the cholesterol is in the yolk.

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Scientists and health professionals have drilled into our brains that high blood cholesterol is the primary cause of heart disease. Cholesterol- in and of itself–is not bad.[3] It helps your body build new cells, insulate nerves, produce hormones, and make testosterone, which all in-turn help to increase energy and build muscle. Under normal circumstances, the liver produces all the cholesterol the body needs. However, cholesterol also enters your body from animal-based foods like milk, eggs, and meat. Too much cholesterol in your body can increase your risk for developing heart disease.[4] Since eggs are fairly high in cholesterol, it was assumed that eating them regularly–particularly the yolks–was a precursor to heart disease.

Today, researchers understand that cholesterol in food is not the true and sole culprit for heart disease. Studies have revealed that saturated and trans fats actually have a much greater effect on blood cholesterol. According to research conducted by Dr. Luc Djoussé, a heart disease researcher at Harvard Medical School, dietary cholesterol does not translate into high levels of blood cholesterol.[5]

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“Current scientific data do not justify worries about egg consumption, including egg yolk, when it comes to heart health,” he says.

Eggs–specifically the yolks–are good for your health

Egg yolks contain almost all the vitamins and minerals in the egg. There’s just no comparison. Most of the vitamins and minerals in an egg are lost if the yolk is discarded. The white of a large egg contains around 60 percent of the egg’s total protein. Additionally, fat and cholesterol in the egg yolk[6] contain fat-soluble nutrients like vitamins D, E, A, choline, and carotenoids,[7] which may aid the body in absorbing these essential and important nutritional components of eggs.

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Eggs also contain phospholipids which may affect cholesterol and inflammation levels in beneficial ways, help decrease blood pressure, and improve vascular function.[8] Preliminary research results have revealed that phospholipids may also help to protect against Alzheimer’s Disease,[9] although the results from these studies are still far from definitive.

In 2000, the American Heart Association (AHA) revised its dietary guidelines and gave healthy adults the green light to enjoy eggs once again. The AHA’s guidelines now allow healthy adults to consume an egg a day but still advise on keeping the total daily cholesterol limit to less than 300 mg.

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Best cooking methods to unlock eggs’ nutritional benefits

Applying heat to good food is a naturally destructive process. The chemistry of heating foods looks a lot like unwinding molecules. In vegetables, heat can break down cell walls to sometimes help make nutrients more accessible to your gut. In egg whites, the proteins become unwound, to become slightly more bio-available (which refers to the proportion of a nutrient that is absorbed from the diet and used for normal body functions). Or to put it simply, heating egg whites is generally beneficial. The yolks, however, should be prepared with as little heat as possible, because heat damages fats and the vital nutrients inside. 

Raw eggs are the most nutrient-rich way to consume eggs, however experts warn against this practice as raw eggs can contain Salmonella[10] and other harmful contaminates.

Reference

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Denise Hill

Denise shares about psychology and communication tips on Lifehack.

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Last Updated on September 18, 2020

7 Simple Rules to Live by to Get in Shape in Two Weeks

7 Simple Rules to Live by to Get in Shape in Two Weeks

Learning how to get in shape and set goals is important if you’re looking to live a healthier lifestyle and get closer to your goal weight. While this does require changes to your daily routine, you’ll find that you are able to look and feel better in only two weeks.

Over the years, I’ve learned a lot about what it takes to get in shape. Although anyone can cover the basics (eat right and exercise), there are some things that I could only learn through trial and error. Let’s cover some of the most important points for how to get in shape in two weeks.

1. Exercise Daily

It is far easier to make exercise a habit if it is a daily one. If you aren’t exercising at all, I recommend starting by exercising a half hour every day. When you only exercise a couple times per week, it is much easier to turn one day off into three days off, a week off, or a month off.

If you are already used to exercising, switching to three or four times a week to fit your schedule may be preferable, but it is a lot harder to maintain a workout program you don’t do every day.

Be careful to not repeat the same exercise routine each day. If you do an intense ab workout one day, try switching it up to general cardio the next. You can also squeeze in a day of light walking to break up the intensity.

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If you’re a morning person, check out these morning exercises that will start your day off right.

2. Duration Doesn’t Substitute for Intensity

Once you get into the habit of regular exercise, where do you go if you still aren’t reaching your goals? Most people will solve the problem by exercising for longer periods of time, turning forty-minute workouts into two hour stretches. Not only does this drain your time, but it doesn’t work particularly well.

One study shows that “exercising for a whole hour instead of a half does not provide any additional loss in either body weight or fat”[1].

This is great news for both your schedule and your levels of motivation. You’ll likely find it much easier to exercise for 30 minutes a day instead of an hour. In those 30 minutes, do your best to up the intensity to your appropriate edge to get the most out of the time.

3. Acknowledge Your Limits

Many people get frustrated when they plateau in their weight loss or muscle gaining goals as they’re learning how to get in shape. Everyone has an equilibrium and genetic set point where their body wants to remain. This doesn’t mean that you can’t achieve your fitness goals, but don’t be too hard on yourself if you are struggling to lose weight or put on muscle.

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Acknowledging a set point doesn’t mean giving up, but it does mean realizing the obstacles you face.

Expect to hit a plateau in your own fitness results[2]. When you expect a plateau, you can manage around it so you can continue your progress at a more realistic rate. When expectations meet reality, you can avoid dietary crashes.

4. Eat Healthy, Not Just Food That Looks Healthy

Know what you eat. Don’t fuss over minutia like whether you’re getting enough Omega 3’s or tryptophan, but be aware of the big things. Look at the foods you eat regularly and figure out whether they are healthy or not. Don’t get fooled by the deceptively healthy snacks just pretending to be good for you.

The basic nutritional advice includes:

  • Eat unprocessed foods
  • Eat more veggies
  • Use meat as a side dish, not a main course
  • Eat whole grains, not refined grains[3]

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Eat whole grains when you want to learn how to get in shape.

    5. Watch Out for Travel

    Don’t let a four-day holiday interfere with your attempts when you’re learning how to get in shape. I don’t mean that you need to follow your diet and exercise plan without any excursion, but when you are in the first few weeks, still forming habits, be careful that a week long break doesn’t terminate your progress.

    This is also true of schedule changes that leave you suddenly busy or make it difficult to exercise. Have a backup plan so you can be consistent, at least for the first month when you are forming habits.

    If travel is on your schedule and can’t be avoided, make an exercise plan before you go[4], and make sure to pack exercise clothes and an exercise mat as motivation to keep you on track.

    6. Start Slow

    Ever start an exercise plan by running ten miles and then puking your guts out? Maybe you aren’t that extreme, but burnout is common early on when learning how to get in shape. You have a lifetime to be healthy, so don’t try to go from couch potato to athletic superstar in a week.

    If you are starting a running regime, for example, run less than you can to start. Starting strength training? Work with less weight than you could theoretically lift. Increasing intensity and pushing yourself can come later when your body becomes comfortable with regular exercise.

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    7. Be Careful When Choosing a Workout Partner

    Should you have a workout partner? That depends. Workout partners can help you stay motivated and make exercising more fun. But they can also stop you from reaching your goals.

    My suggestion would be to have a workout partner, but when you start to plateau (either in physical ability, weight loss/gain, or overall health) and you haven’t reached your goals, consider mixing things up a bit.

    If you plateau, you may need to make changes to continue improving. In this case it’s important to talk to your workout partner about the changes you want to make, and if they don’t seem motivated to continue, offer a thirty day break where you both try different activities.

    I notice that guys working out together tend to match strength after a brief adjustment phase. Even if both are trying to improve, something seems to stall improvement once they reach a certain point. I found that I was able to lift as much as 30-50% more after taking a short break from my regular workout partner.

    Final Thoughts

    Learning how to get in shape in as little as two weeks sounds daunting, but if you’re motivated and have the time and energy to devote to it, it’s certainly possible.

    Find an exercise routine that works for you, eat healthy, drink lots of water, and watch as the transformation begins.

    More Tips on Getting in Shape

    Featured photo credit: Alexander Redl via unsplash.com

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