Dietetic Technician Practice Test 2025 – Complete Exam Preparation

A complete protein is defined as a protein that contains all essential amino acids in sufficient quantities needed by the body. Essential amino acids are those that the body cannot synthesize on its own and must be obtained through diet. Sources of complete proteins typically include animal products such as meat, eggs, and dairy, as well as certain plant-based sources like quinoa and soy. This characteristic is crucial for overall health as it supports muscle repair, enzyme function, and many other biological processes.

Other options do not accurately describe what constitutes a complete protein. For instance, while carbohydrates are an important nutrient, their presence does not affect the completeness of the protein itself. Similarly, factors like saturated fat content or caloric content do not influence the amino acid profile of a protein. Thus, the focus on the presence of all essential amino acids is what distinctly defines a complete protein.

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