Eiweiß

Eiweiß, also known as protein, is a fundamental macronutrient essential for all living organisms. It is composed of chains of amino acids, which are the building blocks for numerous biological structures and functions. Proteins play a vital role in the body's growth, repair, and maintenance. They are critical components of muscles, enzymes, hormones, antibodies, and cell membranes.

Dietary protein can be sourced from both animal and plant-based foods. Animal sources include meat, poultry, fish, eggs, and dairy products. Plant sources encompass legumes, nuts, seeds, and some grains. The body breaks down ingested protein into individual amino acids, which are then used to synthesize new proteins as needed.

There are 20 different amino acids, nine of which are considered essential because the human body cannot produce them and they must be obtained through diet. Proteins differ in their amino acid composition and structure, which determines their specific function. For example, structural proteins like collagen provide support, while enzymes facilitate biochemical reactions. Adequate protein intake is crucial for overall health, supporting immune function, energy levels, and satiety.