Question at position 2 Learning Objective 2
TRUE OR FALSE A foodstuff can only be deemed a complete protein if it contains all 11 of the nonessential amino acids in adequate proportion to sustain health. TrueFalse

Question

Question at position 2 Learning Objective 2
TRUE OR FALSE A foodstuff can only be deemed a complete protein if it contains all 11 of the nonessential amino acids in adequate proportion to sustain health. TrueFalse

BlackTom AI · Accepted Answer

The question asks whether a foodstuff can only be deemed a complete protein if it contains all 11 of the nonessential amino acids in adequate proportion to sustain health.
Option 1: True. This statement would assert that a complete protein must have all 11 nonessential amino acids in adequate amounts. In nutrition science, the concept of complete proteins typically refers to having all essential amino acids in adequate amounts, not nonessential ones, since the body can synthesize nonessential amino acids. Therefore, labeling a food as complete based on nonessential amino acids is incorrect and stems from a common misconception about essential versus nonessential amino acids.
Option 2: False. This option correctly identifies that the standard criterion for a complete protein is presence of all essential amino acids in sufficient quantities, not necessarily all nonessential amino acids. While nonessential amino acids can contribute to protein quality, their presence alone does not determine completeness, because the limiting factor for protein quality is the adequacy of essential amino acids for human health. The statement in this option aligns with established nutrition definitions.
Additional nuance: In practical terms, many plant-based proteins may be incomplete because they lack one or more essential amino acids, yet combinations (like grains and legumes) can provide a complete amino acid profile over the course of a day. This reinforces that the critical criterion is essential amino acids, not nonessential ones.
In summary, the assertion in Option 1 misstates the criterion for a complete protein, while Option 2 correctly reflects the established understanding of protein completeness in nutrition.

Question at position 2 Learning Objective 2 TRUE OR FALSE A foodstuff can only be deemed a complete protein if it contains all 11 of the nonessential amino acids in adequate proportion to sustain health. TrueFalse

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