Eggs have long been considered one of the most nutritious and affordable foods in the world. Whether they are scrambled, boiled, poached, or added to meals, eggs provide a rich source of protein, vitamins, and essential nutrients that support the body in many different ways.

According to the United States Department of Agriculture, a medium-sized egg contains around 70 calories, 6 grams of protein, 5 grams of fat, and approximately 187 milligrams of cholesterol.

Eggs are also packed with important nutrients, including:

Vitamins A, D, E, and K
Vitamins B1, B6, and B12
Choline
Iron
Selenium
Healthy fats
Essential amino acids
Vitamin D plays an important role in helping the body absorb calcium, which supports strong bones and muscles. Vitamin B12 helps maintain normal nerve function and supports the production of red blood cells.

One of the reasons eggs are so highly valued is because their protein is considered “complete” protein. That means it contains all the essential amino acids the body needs for energy, muscle repair, tissue growth, and overall health.

Eggs are made up of two very different parts: the egg white and the egg yolk.

Egg whites are low in calories and especially high in protein, while egg yolks contain most of the vitamins, minerals, healthy fats, and nutrients like choline and vitamin D. Although egg yolks have more cholesterol and fat, they also carry much of the egg’s nutritional value.

Interestingly, many health experts say the timing of when you eat eggs may also influence how your body uses them.

Eating eggs in the morning may provide several important benefits.

After a full night of sleep, the body needs protein and energy to restart metabolism and fuel the day ahead. Since eggs are rich in high-quality protein, they can help people feel fuller for longer periods of time, reducing cravings and unnecessary snacking later in the day.

For people trying to manage their weight, eggs at breakfast may help support appetite control because protein promotes satiety.

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Eggs may also support brain function in the morning thanks to choline, an important nutrient involved in memory, concentration, and nervous system health. Choline helps produce neurotransmitters that allow brain cells to communicate properly and is considered especially important for cognitive function.

Some researchers also believe adequate choline intake may help support healthy brain aging.

Eating eggs in the evening may offer different advantages.

Eggs naturally contain nutrients that may support relaxation and nighttime recovery. Some experts note that protein-rich foods may help support stable blood sugar overnight and contribute to better sleep quality when eaten as part of a balanced dinner.

Eggs may also support muscle repair and recovery during sleep. Since the body does much of its tissue repair overnight, the protein found in eggs can provide important building blocks for muscle regeneration.

In addition, nutrients such as vitamin D and vitamin B12 help support overall recovery and immune function while the body rests.

However, experts generally recommend avoiding very heavy meals immediately before bed. Eating eggs too late at night, especially alongside greasy or rich foods, may lead to bloating or digestive discomfort for some people.

The healthiest approach is usually moderation and balance.

Boiled, poached, or lightly cooked eggs are often considered healthier options than heavily fried eggs cooked with large amounts of butter or oil. Pairing eggs with vegetables, whole grains, or healthy fats may also create a more balanced meal.

For most healthy people, eggs can absolutely be part of a nutritious daily diet.

Whether eaten in the morning for energy and fullness or in the evening for recovery and relaxation, eggs remain one of the simplest and most nutrient-dense foods available.