howtosupplement
Mood/Cognition/Longevity

Lithium

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

Lithium

Lithium

51
score
B
evidence
Caution
risk

Proven Benefits

01Stabilizes bipolar episodes
02Reduces suicide risk
03Augments antidepressant response
04May slow cognitive decline
05May reduce impulsive aggression
06May support bone density

Chemical Forms

Recommended
  • Lithium carbonate (prescription)
  • Lithium citrate (prescription)
Avoid
  • Lithium orotate (limited human evidence; not proven safer)
  • High-dose OTC lithium products with unclear elemental dose
Expert Note

Most solid clinical outcome data come from lithium carbonate and citrate, which are dosed against serum lithium levels. OTC lithium orotate has little human outcomes data and is not proven safer, more bioavailable, or more brain-selective than standard prescription forms.

Protocol

Amount
1-5 mg elemental lithium
Frequency
Once daily
When
With food and adequate fluid intake; keep sodium and caffeine intake fairly consistent.

Condition-Based Dosing

OTC wellness use
1-5 mg elemental lithium daily.
Bipolar disorder
Prescription lithium only; dose is individualized to a serum level typically around 0.6-1.0 mmol/L.
Antidepressant augmentation
Prescription lithium only; dose is clinician-titrated, often to lower serum targets than bipolar treatment.

Safety & Limits

Upper Safe Limit
No official UL for supplemental lithium; do not exceed labeled OTC doses, and prescription lithium is managed by serum levels rather than a fixed oral ceiling.
Cycling
Safe for continuous use

Contraindications

Pregnancy or breastfeeding — fetal and neonatal thyroid, kidney, and cardiac risks
Kidney disease or reduced eGFR — impaired clearance raises toxicity risk
Hypothyroidism or autoimmune thyroid disease — may worsen thyroid dysfunction
NSAIDs, ACE inhibitors, ARBs, or thiazide diuretics — can sharply raise lithium levels
Low-sodium diets, dehydration, sauna use, or heavy heat exposure — reduce clearance and raise levels
Brugada syndrome or significant conduction disease — lithium can worsen ECG abnormalities

Avoid Combining With

  • ✕High sodium intake or salt loading (increases renal excretion — may lower lithium levels)
  • ✕Abrupt caffeine changes (can alter renal clearance — keep intake consistent)
  • ✕Dehydration or heavy sweating (raises lithium concentration and toxicity risk)
Updated Invalid Date