pro
tein
Plural
proteins
1
a substance found in food such as meat, eggs, seeds, etc. which is an essential part of the diet and keeps the body strong and healthy
Proteins are essential nutrients made up of amino acids, which are necessary for the body to function properly. They play a key role in building and repairing tissues, making enzymes and hormones, and supporting immune function. Proteins are found in a variety of foods, including meat, fish, eggs, dairy products, beans, nuts, and seeds. They can be classified as complete or incomplete proteins based on their amino acid content; complete proteins, which are found in animal products and some plant sources like quinoa and soy, contain all the essential amino acids the body needs.
- Chicken and fish are excellent sources of protein.
- Vegetarians get protein from lentils, tofu, and quinoa.
- Athletes often consume extra protein to support muscle recovery.
- A lack of protein in the diet can weaken the immune system.
- This energy bar contains 20 grams of plant-based protein.
2
a complex biological molecule made up of amino acids that performs crucial functions in living organisms
- Hemoglobin, a protein in red blood cells, transports oxygen.
- Enzymes are proteins that speed up chemical reactions.
- Antibodies are proteins that help the immune system fight infections.
- Mutations can alter a protein's shape and function.
- Collagen, a structural protein, gives skin its elasticity.