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Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder determined by a combination of both genetic and environmental factors. Despite wide investigations, the role of chronic exposure to environmental pollutants is still rather unknown. Among natural toxins, the mycotoxins have received major attention only in the last few years, due to both technical and scientific achievements that allowed to disentangle many important features of the complex fungal biology. Whereas the effects of acute and high-dose mycotoxin exposure are well known, the potential effects of chronic and low-dose exposure on neurodegeneration have not been broadly elucidated. In this review, we have summarized all the studies concerning environmental exposure to unknown substances that caused ALS outbreaks all over the world, reinterpreting in light of the new scientific acquisitions and highlighting the potential and neglected role of mycotoxins. Then, we focused on recent papers about food exposure to mycotoxin, mycobiome and fungal infections in ALS and other neurodegenerative diseases. We analyzed the gaps of current literature that lead to an undervaluation of mycotoxins as detrimental molecules. By listing all the most important mycotoxins and analyzing all the biological pathways that they can affect, we explained the reasons why they need to be considered in the next epidemiological studies on ALS and other neurodegenerative and neuroinflammatory diseases. In conclusion, after suggesting some possible solutions to mitigate mycotoxin exposure risk, we affirm that future collaborations between scientists and policymakers are important to develop sustainable interventions and promote health through dietary diversity., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)