Across ancient traditions, the egg has played a significant role in symbolizing the circle of life.
In many ancient traditions, the egg was considered more than just food—it symbolized the origin of the universe. That sense of completeness endures, even nutritionally. Eggs contain all nine essential amino acids the body can’t produce on its own, making them a complete and easily digestible source of protein.
Beyond protein, eggs support brain function, improve eyesight, and boost muscle strength.
Key Nutrients
- Protein: Eggs contain complete protein that supports the immune system, muscle repair, and overall cell health. Egg protein is highly bioavailable, with a 97 percent absorption rate—surpassing that of dairy at 95 percent and meat at 94 percent.
- Choline: Among all the sources of choline—an essential nutrient for memory–eggs are considered the best. One large egg provides about 169 milligrams of choline.
- Lutein and Zeaxanthin: Eggs are rich sources of lutein, zeaxanthin, and carotenoids, making them an effective food for maintaining eye health and protecting against oxidative damage.
- Other Nutrients: Eggs contain omega-3 fatty acids, vitamin B12, and fat-soluble vitamins D, A, and E.
Health Benefits
Eggs provide a multitude of health benefits.
Boosts Brain Function
A 2024 study published in The Journal of Nutrition investigated the association between egg consumption and the risk of developing Alzheimer’s in older adults. The study followed more than a thousand participants, with an average age of 81, for approximately seven years.
Researchers found that those who ate more than one egg per week had nearly half the risk of developing Alzheimer’s compared to those who ate fewer eggs. In brain autopsies of more than half of the deceased participants, those with higher egg consumption also showed a 49 percent lower risk of Alzheimer’s-related brain changes.
Many foods contain water and fat-soluble choline that the brain and nervous system need to regulate muscle control, mood, and memory. Eggs benefit the brain due to their choline content, mainly in the yolk. Some report that hard-boiled eggs are the second major source of choline after beef liver and the first source in the U.S. diet.
The Omega-3 fatty acids in eggs are also essential to our cognitive performance.
