Why the Body Requires Protein - Different Protein Sources

 The body primarily requires protein to grow and repair any parts which have been damaged; it is also essential for the heart muscles and brain.

Along with fats and carbohydrates, protein is a macro-nutrient which is an essential component to any healthy balanced diet. Protein differs from the other macro-nutrients as it is the only one which contains nitrogen atoms.
Why the Body Requires Protein

Protein is necessary for a whole range of different body functions and must be included to form a core part of dietary intake. In The Essential Guide to Vitamins, Minerals and Herbal Supplements, Brewer (2010) highlights why the body requires protein, to include the following:
Proteins play a structural role in the body.
They are vital for immune defences.
They are basic building blocks.
They help muscle growth. Bodybuilders often use protein supplements to bulk up.

Further health benefits and properties associated with protein, identified by Bearden (2006) in Nutrition in Essence, include the following:
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Different Protein Sources – Animal, Vegetable and Dairy Proteins

There are three main sources used to obtain protein, which include animal sources, vegetables sources and dairy sources. A recognised by Bearden (2006), protein sources include the following:
animal protein sources: beef, game, lamb, pork, poultry, fowl, fish, eggs
vegetable protein sources: grains, beans, legumes, nuts, seeds
dairy protein sources: cheese, milk, yogurt

Due to the fact that meat is such a rich source of protein, it is important that those following a vegetarian diet or who consume very little meat are able to gain sufficient amounts of protein required for health from alternative sources. A simple way to add extra protein to salads is to simply sprinkle some nuts or seeds, or add mixed beans.
Organic Protein Sources

While the media would like us to believe that the only way to be healthy is to follow whichever celebrity's fad diet and spend a fortune on special foods, this is simply not the case. Organic sources of protein do not have to cause one's shopping bill to sky-rocket. As identified by Bearden (2006), simple ways to include more organic protein in the diet include the following:

adding a small piece of organic meat in one dish
including organic eggs in a meal
using some organic vegetables a few times a week

Protein is an essential part of any balanced diet, and it can be sourced from animal, vegetable or dairy produce. The body requires protein for healthy growth, repair and to create antibodies
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