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Presentations

Professor David Cameron-Smith

Vitamin B12

12 Dec, 2025

Essential functions and health effects

The presentation covers: 

  • Background
  • Sources, function, digestion and status
    • Digestion, absorption, and bioavailability of vitamin B12
    • Biological functions of vitamin B12
    • Assessment of vitamin B12 status and methodological limitations
  • Deficiencies, insufficiencies and supplementation
    • Prevalence, symptoms, and risk factors for vitamin B12 deficiency
    • Vitamin B12 status in specific populations
    • The impact and efficacy of vitamin B12 supplementation
  • Areas of research
    • Cognitive & neurological health
    • Medications and B12 deficiency
    • Chronic disease relationships

Read a review of the presentation here

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About the Presenter

Professor David Cameron-Smith is a globally recognised clinical scientist, with 25 years’ experience in human nutrition research. Most recently he was Director of the Singapore Clinical Nutrition Research Centre, previously having been Professor for Food Innovation (University of Newcastle, Australia) and prior to that Professor of Human Nutrition (University of Auckland, New Zealand). He was also the inaugural Science Director of High Value Nutrition, a National Science Challenge of New Zealand.

His scientific research includes leading 20+ registered clinical trials and publishing 300+ scientific papers covering many aspects of nutritional biochemistry and health. His focus is on the mechanisms (biochemical, genetic, microbiome) that connect dietary intake with health outcomes, with a focus on ageing, muscles and cardiovascular health.

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  • Presentation notes
  • Assessment quiz and certificate
  • Suggested further reading

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