It is important to note that if your body is well-nourished and not deficient in vitamin B12, adding a supplement will not improve the health of your skin, hair, or nails
Some users optimize at 1%, others at 3% or higher
Further, this may also explain the pathophysiology of depression, as research indicates abnormalities in antioxidant defenses are associated with many psychiatric disease processes (Shah, n.d.)
However, when the researchers adjusted for other things , including siblings with autism, the increased risk was no longer statistically significant .[ref][ref] (Note that other researchers point out bias in that paper.[ref]) Another large study published in 2021 involving 73,000 children and mothers found that there was a 19% increase in relative risk of ASD with prenatal acetaminophen exposure.[ref] A 2025 meta-analysis of studies on acetaminophen use during pregnancy and infancy shows that the majority of studies and the higher-quality studies show a positive association between acetaminophen use and ADHD, ASD, or neurodevelopmental disorders.[ref] A couple of things to consider here
When your cells have the energy and protection they need, they can perform their functionsincluding pigment productionmore effectively