A common nutrient deficiency among surgical patients post-operatively is protein deficiency due to losses and increased need.
Nutrients are the substances present in food which operate biological activity, and are important for the human body. They are categorized as proteins, fats, carbohydrates (sugars, dietary fiber), vitamins, and minerals, and perform their vital functions.
A protein is a commonly occurring, very complicated substance that comprises of amino acid residues joined by peptide bonds. Proteins are found in all living organisms and include many important biological compounds like enzymes, hormones, and antibodies. Examples of proteins include meat and fish, eggs, dairy products, seeds and nuts, legumes like beans and lentils.
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