Folate toxicity is rare because it is a water-soluble vitamin that is excreted in the urine. However, excessive intake of folic acid, primarily through supplements and fortified foods, can lead to potential health concerns. High levels of unmetabolized folic acid in the bloodstream have been associated with an increased risk of certain health issues, including masking vitamin B12 deficiency, which can lead to neurological damage if left untreated.
