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Investigation

Authoring team

Vitamin status can be assessed in several ways:

  • plasma concentration of:
    • vitamin
    • vitamin's metabolite
  • urinary concentration of:
    • vitamin
    • vitamin's metabolite
  • cellular concentration of vitamin e.g. erythrocyte folate levels
  • in vitro activity of compound that requires vitamin for its activity e.g. trans-ketolase for thiamine

Practically, rather than determine the concentration or activity of a given vitamin, it is often easier to provide supplements and determine if there is a clinical response.

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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