eggs (170g
Eggs are a complete protein containing all nine essential amino acids, along with choline (essential for brain health), lutein and zeaxanthin (antioxidants supporting eye health), and selenium. A large egg provides approximately 6–7 grams of protein and 70–80 calories.
About
Eggs are the reproductive product of domesticated fowl, primarily the chicken (Gallus gallus domesticus), consisting of a protein-rich white (albumen), a nutrient-dense yolk, and a calcium carbonate shell. The chicken egg is the most widely consumed egg globally, though eggs from quail, duck, and goose are also used culinarily. A large chicken egg typically weighs 50–65 grams and comprises approximately 73% water, 13% protein, and 12% fat by weight. The white is primarily ovalbumin protein with minimal fat, while the yolk contains fat, cholesterol, and lipoproteins along with vitamins and minerals. Eggs possess a neutral, slightly sweet flavor profile that becomes increasingly rich when the yolk cooks separately from the white at higher temperatures.
Eggs are distinguished by their culinary versatility—they function as a binding agent due to protein coagulation, as a leavening agent through air incorporation, as an emulsifier in sauces, and as a primary protein source in both savory and sweet preparations. The cooking method significantly affects texture and flavor: soft-boiled eggs retain a liquid yolk, while hard-boiled eggs coagulate entirely; fried eggs develop crispy edges at high heat; poached eggs are cooked in water to retain moisture; and scrambled eggs are stirred during cooking to create a custard-like consistency.
Culinary Uses
Eggs are fundamental to global cuisines, serving as the primary protein in breakfast dishes across cultures—from American fried eggs and omelets to French oeufs en cocotte and Spanish tortillas. They function as essential binding and leavening agents in baking, critical to cakes, cookies, meringues, and pastries. In sauces, eggs emulsify and thicken preparations such as hollandaise, béarnaise, and mayonnaise. They are also central to custards, quiches, and savory tarts. Beyond these applications, eggs appear in pasta dough, where they contribute structure and richness, and in Asian preparations like Chinese egg fried rice and Japanese tamago. Proper temperature control is essential: overcooking whites produces a rubbery texture, while undercooked yolks may pose food safety risks.