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How well the body absorbs B12 depends on age, gut health, and medical conditions

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Studies have uncovered differentially methylated profiles in paternal sperm DNA that is linked with the risk of ASD at birth [102], and the usage of a psychoactive agent, which is also associated with the risk of ASD at birth, can alter DNA methylation patterns on maternally imprinted and ASD candidate genes in the sperm [103]