Lithium Orotate and NDGA: What Is Actually Known
Lithium orotate: a 2025 Nature study links brain lithium loss to Alzheimer's in mice and human tissue; no human supplement trial. NDGA not covered.
Researched from published studies and manufacturer specifications, checked .
We have not tested products ourselves. How we research
Quick verdict
A 2025 Nature paper found brain lithium is lower in people with mild cognitive impairment and that lithium orotate prevented pathology in Alzheimer's mouse models. That is animal and tissue evidence: we found no human trial of lithium orotate supplements. Lithium is a drug with a narrow therapeutic window. We could not verify claims on NDGA.
Talk to your doctor first. This is general information, not medical advice. Supplements and devices can interact with medicines and health conditions. We quote study protocols for context and do not recommend doses.
The short answer: lithium orotate is interesting science, not yet a human-proven supplement. A 2025 Nature study found lithium was the only metal significantly lower in the brains of people with mild cognitive impairment, that dietary lithium depletion accelerated Alzheimer’s-like changes in mice, and that lithium orotate prevented pathology and memory loss in mouse models. We found no human trial of lithium orotate supplements. Pharmaceutical lithium has a narrow therapeutic window. We could not verify claims about NDGA. Talk to your doctor.
What the evidence shows
Grade: Not shown in humans.
| Item | Evidence | Limit |
|---|---|---|
| Lithium and Alzheimer’s | Nature 2025: reduced brain lithium in mild cognitive impairment; lithium orotate prevented changes in AD mouse models and ageing mice | Human tissue association and mouse work; no supplement trial in people |
| Safety of lithium orotate | Toxicological evaluation 2021: genotoxicity tests negative; 28-day repeat-dose study (details not extracted) | Preclinical; not human long-term safety |
| NDGA | Not assessed: we found no source we could verify | No claim made |
Related: graded supplement ladder, curcumin. Products (Amazon links, we may earn a commission; contents not verified): lithium orotate, NDGA. We link them for readers who already decided to buy, not as a recommendation.
Method note
Read for this page: Lithium deficiency and the onset of Alzheimer’s disease (Nature 2025); A toxicological evaluation of lithium orotate (Regul Toxicol Pharmacol 2021). Checked 29 Sept 2026. Abstracts only. We did not test any product. General information, not medical advice: this page gives no dose.
Common questions
Does lithium orotate prevent Alzheimer's disease?
Not shown in humans. A 2025 Nature study found lithium was the only metal significantly reduced in the brain in people with mild cognitive impairment, that lowering it in mice accelerated Alzheimer's-like pathology, and that lithium orotate prevented pathological changes and memory loss in mouse models and ageing mice. No human trial of lithium orotate supplements was reported in that abstract.
Is lithium orotate safe?
A 2021 preclinical evaluation found lithium orotate was not mutagenic in bacterial or mammalian cell tests and not genotoxic in a mouse micronucleus test; the abstract says pharmaceutical lithium salts have a narrow therapeutic window, at doses 5.5 to 67 times higher than typical supplemental lithium orotate. Human safety data for long-term supplement use are limited. Ask your doctor, particularly if you take other medicines or have kidney or thyroid disease.
Sources
- Lithium deficiency and the onset of Alzheimer's disease (Nature 2025) checked 29 Sept 2026
- A toxicological evaluation of lithium orotate (Regul Toxicol Pharmacol 2021) checked 29 Sept 2026
Update log
- Sourcing pass: removed unsourced claims, dosing and NDGA content we could not verify; kept the 2025 Nature paper and the 2021 toxicology study with their limits.
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