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MMLU / For certain micronutrients, 'biochemical functional indices' have been…

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question

For certain micronutrients, 'biochemical functional indices' have been developed, to assess the adequacy of one or more biochemical pathways that respond predictably to changes in status of that specific micronutrient. One example is serum methylmalonic acid as a biochemical functional index for vitamin B12 status. What is the primary aim of such biochemical functional index measurements?

choices

  1. To achieve a better estimate of the dietary intake of the micronutrient.
  2. To overcome interference, eg by acute phase-linked effects.
  3. To correct for nutrient losses, e.g. through urinary excretion.
  4. To provide an additional status estimate that can probe critical tissue adequacy, and hence the risk of consequent clinical disease or physiological malfunction.

subject

nutrition

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