Lithium in the Brain: New Clues on Dementia Risk but No Proven Remedy

Harvard researchers analyzing metals in brains found lower lithium levels in the prefrontal cortex of people with cognitive impairment and dementia. In mice with Alzheimer’s-like symptoms, lithium—especially lithium orotate—appeared to reduce pathology by interacting with amyloid beta, but this does not translate to proven benefits in humans. Lithium supplementation for dementia prevention remains unproven and could carry toxicity risks, so more research is needed. In the meantime, brain health is best supported by Mediterranean/MIND-style diets, ensuring vitamin D and B12 sufficiency, and considering multivitamin supplementation for potential cognitive decline risk reduction.