2017.06.11 CSCS Daily Study Question:
Which of the following would generally be the dietary protein of lower biological value?
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Protein is composed of multiple polypeptide chains linked together. Each polypeptide chain is composed of multiple amino acids linked together.
Amino acids are classified as either “essential” or “non-essential.” The body can synthesize non-essential amino acids. Essential amino acids cannot be synthesized by the body and must be obtained through the diet.
If a dietary protein contains amino acids in proportions that match the amino acid needs of the body, then the dietary protein is considered “high-quality” or “high biological value.” Dietary proteins that do not contain amino acids in proportion to the amino acid needs of the body are considered “low-quality” or “low biological value.”
In general, higher quality dietary protein comes from animal sources (eggs, beef, etc.) and lower quality protein comes from plant-based sources (soy, beans, etc.).
Essentials of Strength Training & Conditioning 3rd Edition p. 207
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2017.06.11 CSCS Daily Study Question