Protein

Basic structure
Proteins are compounds composed of carbon, hydrogen, oxygen, and nitrogen atoms. They differ from fats and carbohydrates by the fact that they contain nitrogen.

Roles of Protein in the Body
Proteins carry out a wide range of functions within the body. Proteins are important for body structure, protection, transport and communication.

Protein Quality
Scientists have developed several methods for evaluating the quality of food proteins. These methods aim to identify high quality-proteins, that is, proteins which contain all the essential amino acids in relatively the same proportion as human beings require.

Protein Requirements
Protein requirements have been estimated using a variety of techniques. Protein requirements are expressed as the amount of protein (g) required per kilogram (kg) of an individual's body weight, per day.

Protein and Exercise Recovery
During strenuous exercise some protein in the muscle are broken down. Taking protein within half an hour of finishing exercise may help the process of building and repairing muscle.

Protein and Weight Loss
Some researchers have suggested that increasing the amount of protein in the diet may help with weight loss.

Protein: Not just for Muscle Growth - Bioactives
We know that the primary role of food proteins is to deliver amino acids to the body to support protein metabolism. However, some proteins also contain amino acids which exhibit other biological activities.

Protein Supplementation
Although we know that physically active individuals have an increased requirement for protein, it is debatable whether protein supplements are necessary. Most Dietetians would agree that the increased protein requirements could be obtained from the diet.

Protein counter
Calculate your protein intake.

Protein Comparisons and Protein Fractions
Comparison between Soy Isolate, Whey protein concentrate and Whey protein isolate.