Why tiny amounts of vitamin B12 matter more as we age - The Conversation
Berna Namoglu/Shutterstock Why tiny amounts of vitamin B12 matter more as we age Published: June 12, 2026 10.56am CEST https://theconversation.com/why-tiny-amounts-of-vitamin-b12-matter-more-as-we-age-282520 https://theconversation.com/why-tiny-amounts-of-vitamin-b12-matter-more-as-we-age-282520 Link copied Share article Share article Copy link Email Bluesky Facebook WhatsApp Messenger LinkedIn X (Twitter) Print article Two micrograms is an almost unimaginably small amount. It weighs less than a tiny fragment of a grain of table salt.