Mood/Cognition/Longevity

Lithium

Naturally occurring trace element; prescription lithium stabilizes mood, while OTC microdose products have much weaker evidence.

score

evidence

Caution

risk

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Use with caution

This supplement may interact with medications, medical conditions or sensitive populations. Review safety before use.

Overview

Forms

Safety

Stack

Quick Take

Not a casual wellness supplement — the meaningful evidence is mostly prescription-level and needs monitoring.

Lithium is a naturally occurring trace element found in groundwater and, in variable amounts, some grains and vegetables. It alters neuronal signaling by inhibiting inositol recycling and GSK-3, which affects neurotransmitters, circadian biology, and neurotrophic pathways. Best-supported uses are stabilizing bipolar disorder, lowering suicide risk in mood disorders, and augmenting antidepressants. Most benefit is seen in psychiatric patients under clinician supervision; OTC microdose products are much less studied.

Potential benefits

Stabilizes bipolar episodes

Reduces suicide risk

Augments antidepressant response

May slow cognitive decline

May reduce impulsive aggression

May support bone density

Protocol

Amount

1-5 mg elemental lithium

Frequency

Once daily

When

With food and adequate fluid intake; keep sodium and caffeine intake fairly consistent.

Onset Time

2-6 weeks for mood effects; months for relapse prevention

Who Should Consider

Adults with bipolar disorder under psychiatric care

Treatment-resistant depression as supervised add-on therapy

People considering OTC lithium orotate after med review

Food Sources

Drinking water (content varies widely by region)
Cereals and grains (trace amounts, soil-dependent)
Potatoes and root vegetables (trace amounts, highly variable)
Leafy vegetables (trace amounts, highly variable)

How It Works

Lithium inhibits inositol monophosphatase and GSK-3, changing second-messenger signaling in neurons. This affects dopamine, glutamate, circadian clock genes, and neuroprotective pathways such as BDNF, which likely explains its mood-stabilizing and possible neuroprotective effects.

Updated 5/19/2026