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Older adults: B12 absorption can decline with age

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1.5 g according to the UK National Health Service (NHS) and British Nutrition Foundation (BNF) Increased requirement: 5 g factors which increase an individuals B12 requirement are illness, stress, toxic stress, pregnancy and breastfeeding Dietary Supply or Supplement Requirement

This provides an important tool for research into aging-related neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease, and offers experimental evidence for intervention strategies in neuronal aging

Retrieved 15 May 2025