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Eur J Nutr. 2011 Aug;50(5):387-9. doi: 10.1007/s00394-011-0171-x. Epub 2011 Feb 8.

Low-dose lithium uptake promotes longevity in humans and metazoans.

Author information

  • 1Department of Human Nutrition, Institute of Nutrition, University of Jena, Germany.

Abstract

PURPOSE:

Lithium is a nutritionally essential trace element predominantly contained in vegetables, plant-derived foods, and drinking water. Environmental lithium exposure and concurrent nutritional intake vary considerably in different regions. We here have analyzed the possibility that low-dose lithium exposure may affect mortality in both metazoans and mammals.

METHODS:

Based on a large Japanese observational cohort, we have used weighted regression analysis to identify putative effects of tap water-derived lithium uptake on overall mortality. Independently, we have exposed Caenorhabditis elegans, a small roundworm commonly used for anti-aging studies, to comparable concentrations of lithium, and have quantified mortality during this intervention.

RESULTS:

In humans, we find here an inverse correlation between drinking water lithium concentrations and all-cause mortality in 18 neighboring Japanese municipalities with a total of 1,206,174 individuals (β = -0.661, p = 0.003). Consistently, we find that exposure to a comparably low concentration of lithium chloride extends life span of C. elegans (p = 0.047).

CONCLUSIONS:

Taken together, these findings indicate that long-term low-dose exposure to lithium may exert anti-aging capabilities and unambiguously decreases mortality in evolutionary distinct species.

PMID:
21301855
[PubMed - indexed for MEDLINE]
PMCID:
PMC3151375
Free PMC Article

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