Lithium orotate vs Magnesium L-Threonate
Two minerals sold in a special salt for the brain. In both cases the salt is the marketing and the evidence sits somewhere else.
Lithium orotate
The intriguing signal is epidemiological — regions with higher lithium in drinking water show lower suicide rates — at doses far below prescription lithium; no RCT has tested the low-dose orotate salt actually sold as a supplement.
Full Lithium orotate evidence reviewMagnesium L-Threonate
Magtein
The 'raises brain magnesium and memory' story rests on one 2010 rat study plus one small industry-linked human trial; for repletion, cheap glycinate/citrate work just as well.
Full Magnesium L-Threonate evidence reviewSide by side
| Lithium orotate | Magnesium L-Threonate | |
|---|---|---|
| Marketed for | Mood, cognition, neuroprotection, longevity | Memory, brain magnesium |
| Evidence grade | Preclinical / minimal | Clinical data |
| Family | mTOR & other | mTOR & other |
| Key human source | Water-lithium epidemiology, Br J Psychiatry 2009 | MMFS-01 RCT, J Alzheimers Dis 2016 |
marks a row where the two differ. Evidence grades come from our evidence matrix, which grades each molecule on the human data for the use it is marketed for.
Our verdict
Neither has a randomized trial of the product actually on the shelf. Magnesium L-threonate's 'raises brain magnesium and memory' story rests on one 2010 rat study plus one small industry-linked human trial, and for simple repletion cheap glycinate or citrate work just as well. Lithium orotate's interesting signal is epidemiological — regions with more lithium in drinking water show lower suicide rates, at doses far below prescription lithium — but no RCT has tested the low-dose orotate salt sold as a supplement. Lithium is also a drug with a narrow therapeutic window, which makes missing trial data a heavier problem on that side.
Lithium orotate fits if
You are reading the water-lithium epidemiology and want to understand what it does and does not imply about a supplement.
Magnesium L-Threonate fits if
You want magnesium and are weighing whether the threonate form justifies its price over glycinate or citrate.