Interesting - a potential way to minimize the possible cognitive problems by giving your children broccoli sprouts (or supplements with this compound in them). More research would be helpful in validating this research.
These findings suggest that Sulforaphane (SFN), an isothiocyanate derived from broccoli and may have prophylactic and therapeutic effects on cognitive impairment in schizophrenia. Therefore, the dietary intake of SFN-rich broccoli sprouts during the juvenile and adolescence may prevent the onset of psychosis at adulthood.
Source (full paper)