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Protein - Definition, Structure, & Classification

In conclusion, understanding basics like protein definition, protein structure, and the nutritional classification of protein helps to know why protein for kids is crucial for growth, repair, and overall health. Including a combination of complete and incomplete proteins rich food sources in the diet ensures children get all the amino acids their bodies need to stay strong and active. You can also supplement a nutritional drink like Complan along with a balanced diet. Complan provides 63% more protein for kids than other than other malt-based nutritional drinks and has 34 vital nutrients to su

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Protein - Definition, Structure, & Classification

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  1. Protein - Definition, Structure, & Classification

  2. The food we eat is mainly broken down into three macronutrients – proteins, carbohydrates (including fiber), and fats. To stay healthy, children’s diet needs to consist of an appropriate mix of these nutrients from various food sources. Among these three nutrients, protein for kids’ is important because it helps their body grow strong by building and repairing the body from skin and muscles to organs and bones. Protein also supports vital functions inside every cell. Protein Definition:  • Proteins are defined as important macromolecules that play critical roles in the body; They are made up of hundreds or thousands of smaller units called amino acids, link together in long chains. Apart from building and repairing body cells, protein also encompasses other important functions such as immunity, hormone production, and enzyme activity.  

  3. Protein Structure: Protein structure indicates the 3D arrangement of amino acid chains. The structure of each protein helps in understanding the function, whether it’s working as an enzyme to catalyse reactions, providing structural support, or facilitating cellular communication. Proteins are made from 20 different amino acids, each has its unique side chains which determine how amino acids interact with each other, influencing the folding and function of the protein. . Every protein that the body needs is subsequently created by assembling these amino acids in the correct order. The order of amino acids in a protein is determined by genes, and even a minor change in the arrangement can affect the protein function. • 2 Protein Structure has four different levels: Primary: Amino acids are arranged in a straight chain.  Secondary: Amino acids are formed in the shape of coils and zigzags. Tertiary: Amino acids are folded complexly to form a 3D shape. Quaternary: The two or more chains of amino acids are joined to make one working protein (not in all proteins).

  4. Classification of Protein: • Protein can be classified as complete or incomplete protein. This classification of protein is categorized based on the type of amino acids. Among the 20 amino acids, 11 are non-essential amino acids which can be made by the body and do not have to be supplied via food, while the other nine amino acids are essential amino acids because they cannot be made by the body, so must be supplied via food. Animal based food sources like chicken, fish, egg, milk, etc., contain all nine essential amino acids and are known as a complete protein. On the other hand, most plant-based foods like cereals, pulses, nuts are considered incomplete protein foods because they are deficient in certain essential amino acids.1, This is how nutritional classification of protein is done.

  5. In conclusion, understanding basics like protein definition, protein structure, and the nutritional classification of protein helps to know why protein for kids is crucial for growth, repair, and overall health. Including a combination of complete and incomplete proteins rich food sources in the diet ensures children get all the amino acids their bodies need to stay strong and active. You can also supplement a nutritional drink like Complan along with a balanced diet. Complan provides 63% more protein for kids than other than other malt-based nutritional drinks and has 34 vital nutrients to support growth and development. 

  6. Source •  Fürst, P. (2009). Basics in clinical nutrition: Proteins and amino acids. Clinical Nutrition ESPEN, 4(e62–e65). https://doi.org/10.1016/j.clnesp.2008.12.005 • Yadav, K. (n.d.). Structure and properties of proteins. Department of Biochemistry, University of Lucknow. Retrieved from https://www.lkouniv.ac.in/site/writereaddata/siteContent/202003291612341624kuaum_yadav_structure_and_properties_of_proteins.pdf • Dimina, L., Rémond, D., Huneau, J. F., & Mariotti, F. (2022). Combining Plant Proteins to Achieve Amino Acid Profiles Adapted to Various Nutritional Objectives-An Exploratory Analysis Using Linear Programming. Frontiers in nutrition, 8, 809685. https://doi.org/10.3389/fnut.2021.809685

  7. Thanks!

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