Low Levels of This Vitamin Were Just Linked to Dementia. Are You Getting Enough?

Key Points:

• A recent study published in the Annals of Neurology found that older adults with lower biologically active vitamin B12 levels showed slower brain processing speeds and had more white matter lesions, which are linked to cognitive decline and dementia.
• Current recommended daily B12 intake for adults is 2.4 micrograms, but the study suggests these levels may not be sufficient to protect brain health, highlighting the need for further research to determine optimal B12 ranges.
• Vitamin B12 is essential for brain function as it helps convert sugar into energy, supports cell function, and aids red blood cell formation; low B12 levels can cause symptoms similar to dementia, such as mental fog and memory loss.
• B12 is primarily found in animal products like beef liver, clams, oysters, salmon, and tuna, and supplementation should be guided by healthcare providers, especially for those with low absorption or deficiency.
• Experts recommend getting a blood test to assess B12 levels, aiming for mid-range values rather than just "normal," and adjusting supplementation accordingly to support cognitive health and overall energy.