06/03/2026
Lithium, long known as a prescription treatment for bipolar disorder, is increasingly being studied for its potential role in brain health, neuroprotection, and healthy aging.
Research suggests that lithium may help protect cognitive function through several mechanisms, including regulating the enzyme GSK-3β, increasing Brain-Derived Neurotrophic Factor (BDNF) to support neuron growth and connectivity, promoting autophagy to clear damaged cellular components, and helping preserve gray matter.
Some studies have also observed lower rates of dementia in populations exposed to higher levels of naturally occurring lithium in drinking water.
Importantly, prescription lithium carbonate and low-dose nutritional lithium orotate differ substantially in dosage, purpose, and safety considerations: prescription lithium is used for mood disorders at much higher doses and requires medical monitoring, while lithium orotate is available as a low-dose supplement marketed for cognitive support.