Egg Whites Are Low in Fat and Contain No Cholesterol
However, all of the cholesterol and fat in eggs is found in the egg yolk. Egg whites, on the other hand, are almost pure protein and contain no fat or cholesterol. For years, this meant that eating egg whites was considered healthier than eating whole eggs (9).
Egg whites are high in protein yet low in calories, fat, and cholesterol — making them a good food to include in your eating plan if you're trying to lose weight. They may also benefit those who have high protein requirements but need to watch their calorie intake, such as athletes or bodybuilders ( 22 ).
The egg yolk contains more nutrients than the white, including calcium, iron, zinc, copper, manganese, vitamin B6, folate and vitamin B12.
Egg whites are low in calories and fat.
Despite making up most of an egg's volume, the egg white contains only about a quarter of its calories, and has almost zero fat. This means egg whites offer health benefits over whole eggs for people on low-calorie, high-protein diets, and can help with weight loss.
Bottom Line. If you simply prefer the taste of egg whites, there's no harm in enjoying them. But while egg whites are healthy, you're much better off eating the whole egg, as the yolks are where the nutrition benefits come into play.
Compared to egg whites, the yolk contains most of an egg's good stuff, including the bulk of its iron, folate and vitamins. The yolks also contain two nutrients—lutein and zeaxanthin—that support eye and brain health.
One large egg has about 186 mg of cholesterol — all of which is found in the yolk. If your diet contains little other cholesterol, according to some studies, eating up to an egg a day might be an OK choice. If you like eggs but don't want the cholesterol, use only the egg whites.
After chicken breasts and protein shakes, few protein options are more prevalent in a bodybuilding diet than egg whites. That's because egg whites are a nearly pure source of protein, containing almost 100% of their calories from this macro with virtually no fats or carbs.
Egg protein is considered complete because it provides all of the essential amino acids in adequate proportions to meet the body's requirements, and in this way it is similar to whey and other proteins from animal sources. Athletes and bodybuilders who use egg protein say it helps them increase muscle mass quickly.
While consuming a protein-rich diet is very good for health, but one should not overdo it. Eating a high amount of protein can be dangerous if you suffer from kidney problems. Also, people with low Glomerular filtration rate could suffer from acute kidney injury because of the high biological value of egg protein.
"In this study we also found that consuming albumen -- the protein in egg whites -- increased testosterone levels, and did so by four-fold relative to fasting, while albumin, combined with the bad saturated fat somewhat ameliorated the effect of the bad fats on testosterone levels, providing another diet-based ...
For most healthy adults, it's safe to eat 1–2 eggs a day depending on how much other cholesterol is in your diet. If you already have high cholesterol or other risk factors for heart disease, it may be best to eat no more than 4–5 eggs per week.
Does Cooking an Egg Reduce Its Protein? The way you prepare the egg has no effect on the amount of protein the egg originally contains, but it does have an effect on how much of the protein in the egg you absorb from the egg.
Myth 1: Eating egg yolks makes people fat.
But if you remove the yolk of the egg, you lose out on all its fat-soluble and water-soluble vitamins and minerals. Egg yolks do not have an excellent reputation but are full of proteins and other nutrients for healthy weight management.
There are roughly 3 grams of protein in a single egg white — half that of the whole egg — so it's important to stick to 8 egg whites or less per day.
The American Heart Association recommends up to one egg a day for most people, fewer for people with high blood cholesterol, especially those with diabetes or who are at risk for heart failure, and up to two eggs a day for older people with normal cholesterol levels and who eat a healthy diet.
Egg yolks are high in cholesterol and nutrients like vitamins, minerals, and healthy fats. Eating only egg whites to avoid the cholesterol from the yolk may only be necessary for people at an elevated risk of heart disease.
Most edible eggs, including bird eggs and turtle eggs consist of a hard, oval outer eggshell, the "egg white," or albumen, the egg yolk, and various thin membranes. Every part of these eggs is edible, although the eggshell is generally discarded.
Benefits of egg whites
Since egg whites are low calorie and virtually fat free, they're often used in place of whole eggs or other protein sources such as meat, fish, and legumes for those who are looking to increase their protein intake while maintaining a lower intake of calories and fat.
It can also be present on the inner and outer surfaces of egg shells. To avoid the risk of salmonella, it is recommended to avoid eating egg whites everyday but cook the eggs for a long period of time and at a high temperature.
One group followed the egg white protocol while the other consumed a drink containing whey. Both diets provided eight grams of the specific protein daily. Following this diet for 12 weeks, the researchers found that the egg white drink was able to “significantly” lower visceral fat area.
Eggs can be a healthful source of protein, but they should not be the only food a person eats. The egg diet may lead to weight loss initially, but it is not a balanced or safe weight loss plan in the long-term.
Eggs are also loaded with cholesterol—about 200 milligrams for an average-sized egg. That's more than double the amount in a Big Mac. Fat and cholesterol contribute to heart disease. A 2021 study found that the addition of half an egg per day was associated with more deaths from heart disease, cancer, and all causes.