Yes, an egg is a good source of protein. A large egg contains approximately 6 grams of protein. While there are foods with more protein per serving, the protein in eggs is considered high-quality, meaning it contains all nine essential amino acids that our bodies need but cannot produce on their own. This makes it an excellent addition to a balanced diet.
Egg Protein: A Closer Look
- Total Protein: One large egg provides roughly 6.3 grams of protein [9, 15-Jul-2022].
- Distribution: This protein is distributed between the yolk (2.7g) and the white (3.6g) [9, 15-Jul-2022]. Egg whites are particularly high in protein [Reddit, Jan 20, 2024].
- Quality: Egg protein is considered a "high-quality" or "complete" protein because it contains all nine essential amino acids [Egg Farmers of Canada, Aug 12, 2021]. This means your body can easily absorb and utilize the protein effectively.
- Other Nutrients: In addition to protein, eggs are a low-cost, nutrient-dense food, low in calories and high in other essential nutrients [PMC, Jul 15, 2022].
While eggs are an excellent source of protein, it's important to note that many other foods also offer significant amounts of protein [EatingWell, WebMD]. The statement that eggs are "the perfect protein source" [source 8] should be understood within the context of their complete amino acid profile and overall nutritional value, not necessarily their quantity of protein relative to all other protein-rich foods.
Examples of Foods with More Protein Than an Egg
Several foods contain more protein than a single egg. Sources such as EatingWell and WebMD list various examples, highlighting that while eggs are a great protein source, they are not the only or necessarily the highest protein source.
