
interesting:
Lithium: occurrence, dietary intakes, nutritional essentiality.
https://www.ncbi.nlm.nih.gov/pubmed/11838882
The available experimental evidence now appears to be sufficient to accept lithium as essential; a provisional RDA for a 70 kg adult of 1,000 microg/day is suggested.
The suicide prevention effect of lithium: more than 20 years of evidence—a narrative review
https://link.springer.com/article/10.11 ... 015-0032-2
Lithium in the public water supply and suicide mortality in Texas
http://www.sciencedirect.com/science/ar ... 561200372X
"The findings provide confirmatory evidence that higher lithium levels in the public drinking water are associated with lower suicide rates."
Food sources of lithium
https://www.livestrong.com/article/5194 ... n-lithium/