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One little egg is packed with several vitamins essential to your health:

‘ Vitamin B2 (riboflavin), which helps your body to break down food into energy
‘ Vitamin B12 (cobalamin), vital for producing red blood cells
‘ Vitamin A (retinol), which is great for your eyesight
‘ Vitamin E (tocopherol), which fights off the free radicals that can cause tissue and cellular damage, which may lead to cancer

An investigative team led by Washington University in St. Louis showed that feeding one egg a day (versus none) to 6 to 9-month-old infants in undernourished areas of Ecuador decreased the prevalence of stunting by 47% and underweight by 74%( Iannotti LL, et al.,2017). Researchers from the University of Arkansas found that adding two eggs a day to the diets of 6 to 8-year-old children in undernourished areas of rural Uganda resulted in increased height and weight (Baum JI, 2017).

Improving village poultry production has been linked to improving nutritional outcomes, particularly with the consumption of eggs (Ruxton, et al., 2010). An average egg contains 315 kJ of energy, six grams of protein and 11 different vitamins and essential nutrients including vitamins A, B12, E, K, and choline and iron. A recent study conducted in Ecuador found that the consumption of one egg a day during complementary feeding stages reduces childhood stunting and improves the growth in young children considered stunted (Iannotti L.L, et al., 2017).

Top 10 Health Benefits of Eating Eggs

Eggs are one of the few foods that should be classified as "superfoods."

They are loaded with nutrients, some of which are rare in the modern diet.

Here are 10 health benefits of eggs that have been confirmed in human studies.

1. Incredibly Nutritious

Eggs are among the most nutritious foods on the planet. A whole egg contains all the nutrients required to turn a single cell into a baby chicken.

A single large boiled egg contains (1):

Vitamin A: 6% of the RDA

Folate: 5% of the RDA

Vitamin B5: 7% of the RDA

Vitamin B12: 9% of the RDA

Vitamin B2: 15% of the RDA

Phosphorus: 9% of the RDA

Selenium: 22% of the RDA

ü  Eggs also contain decent amounts of vitamin D, vitamin E, vitamin K, vitamin B6, calcium and zinc

ü  This comes with 77 calories, 6 grams of protein and 5 grams of healthy fats.

ü  Eggs also contain various trace nutrients that are important for health.

ü  In fact, eggs are pretty much the perfect food. They contain a little bit of almost every nutrient you need.

ü  If you can get your hands on pastured or omega-3 enriched eggs, these are even better. They contain higher amounts of omega-3 fat and are much higher in vitamin A and E (2, 3).

2. High in Cholesterol, but Don't Adversely Affect Blood Cholesterol

It is true that eggs are high in cholesterol. In fact, a single egg contains 212 mg, which is over half of the recommended daily intake of 300 mg. However, it's important to keep in mind that cholesterol in the diet doesn't necessarily raise cholesterol in the blood. The liver actually produces large amounts of cholesterol every single day. When you increase your intake of dietary cholesterol, your liver simply produces less cholesterol to even it out. Nevertheless, the response to eating eggs varies between individuals. In 70% of people, eggs don't raise cholesterol at all.  In the other 30% (termed "hyper responders"), eggs can mildly raise total and LDL cholesterol. However, people with genetic disorders like familial hypercholesterolemia or a gene variant called ApoE4 may want to limit or avoid eggs.

3. Raise HDL (The "Good") Cholesterol

HDL stands for high-density lipoprotein. It is often known as the "good" cholesterol. People who have higher levels of HDL usually have a lower risk of heart disease, stroke and other health problems. Eating eggs is a great way to increase HDL. In one study, eating two eggs per day for six weeks increased HDL levels by 10%.

4. Contain Choline — an Important Nutrient That Most People Don't Get Enough Of

Choline is a nutrient that most people don't even know exists, yet it is an incredibly important substance and is often grouped with the B vitamins. Choline is used to build cell membranes and has a role in producing signaling molecules in the brain, along with various other functions. The symptoms of choline deficiency are serious, so fortunately it’s rare. Whole eggs are an excellent source of choline. A single egg contains more than 100 mg of this very important nutrient.

5. Are Linked to a Reduced Risk of Heart Disease

LDL cholesterol is generally known as the "bad" cholesterol. It is well known that having high levels of LDL is linked to an increased risk of heart disease. But many people don't realize that LDL is divided into subtypes based on the size of the particles. There are small, dense LDL particles and large LDL particles. Many studies have shown that people who have predominantly small, dense LDL particles have a higher risk of heart disease than people who have mostly large LDL particles. Even if eggs tend to mildly raise LDL cholesterol in some people, studies show that the particles change from small, dense to large LDL, which is an improvement.

6. Contain Lutein and Zeaxanthin — Antioxidants That Have Major Benefits for Eye Health

One of the consequences of aging is that eyesight tends to get worse. There are several nutrients that help counteract some of the degenerative processes that can affect our eyes. Two of these are called lutein and zeaxanthin. They are powerful antioxidants that accumulate in the retina of the eye. Studies show that consuming adequate amounts of these nutrients can significantly reduce the risk of cataracts and macular degeneration, two very common eye disorders. Egg yolks contain large amounts of both lutein and zeaxanthin. In one controlled study, eating just 1.3 egg yolks per day for 4.5 weeks increased blood levels of lutein by 28–50% and zeaxanthin by 114–142%. Eggs are also high in vitamin A, which deserves another mention here. Vitamin A deficiency is the most common cause of blindness in the world.

7. Omega-3 or Pastured Eggs Lower Triglycerides

Not all eggs are created equal. Their nutrient composition varies depending on how the hens were fed and raised. Eggs from hens that were raised on pasture and/or fed omega-3 enriched feeds tend to be much higher in omega-3 fatty acids. Omega-3 fatty acids are known to reduce blood levels of triglycerides, a well known risk factor for heart disease. Studies show that consuming omega-3 enriched eggs is a very effective way to lower blood triglycerides. In one study, eating just five omega-3 enriched eggs per week for three weeks reduced triglycerides by 16–18% (, ).

8. High in Quality Protein, With All the Essential Amino Acids in the Right Ratios

Proteins are the main building blocks of the human body. They're used to make all sorts of tissues and molecules that serve both structural and functional purposes. Getting enough protein in the diet is very important and studies show that currently recommended amounts may be too low. Eggs are an excellent source of protein, with a single large egg containing six grams of it. Eggs also contain all the essential amino acids in the right ratios, so your body is well-equipped to make full use of the protein in them. Eating enough protein can help with weight loss, increase muscle mass, lower blood pressure and optimize bone health, to name a few.

9. Don’t Raise Your Risk of Heart Disease and May Reduce the Risk of Stroke

For many decades, eggs have been unfairly demonized. It has been claimed that because of the cholesterol in them, they must be bad for the heart. Many studies published in recent years have examined the relationship between eating eggs and the risk of heart disease. One review of 17 studies with a total of 263,938 participants found no association between egg intake and heart disease or stroke. Many other studies have arrived at the same conclusion. However, some studies have found that people with diabetes who eat eggs have an increased risk of heart disease. Whether the eggs are actually causing the increased risk isn't known, because these types of studies can only show statistical association. They cannot prove that eggs caused anything. It is possible that people who eat lots of eggs and have diabetes are less health-conscious, on average. On a low-carb diet, which is by far the best diet for people with diabetes, eating eggs leads to improvements in risk factors for heart disease.

10. Are Filling and Tend to Make You Eat Fewer Calories, Helping You Lose Weight

Eggs are incredibly filling. They are a high-protein food, and protein is, by far, the most satiating macronutrient ().

Eggs score high on a scale called the satiety index, which measures the ability of foods to cause feelings of fullness and reduce later calorie intake ().

In one study of 30 overweight women, eating eggs instead of bagels for breakfast increased feelings of fullness and made them automatically eat fewer calories for the next 36 hours ().

In another study, replacing a bagel breakfast with an egg breakfast caused significant weight loss over a period of eight weeks ().

SUMMARY

Eggs are highly satiating and may reduce calorie intake later in the day. Regularly eating eggs may promote weight loss.

The Bottom Line

Studies clearly show that eating up to three whole eggs per day is perfectly safe.

There is no evidence that going beyond that is harmful — it is just "uncharted territory," as it hasn't been studied.

Eggs are pretty much nature's perfect food.

On top of everything else, they are also cheap, easy to prepare, go with almost any food and taste awesome.

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