There isn't a direct gene for ADHD or depression, but there is a 'sensitivity gene' that makes individuals more susceptible to stress. According to epigenetics, present and nurturing parenting in the first year of life can effectively neutralize the expression of this gene, preventing future mental illness.

The comforting myth that a fetus selectively takes only necessary nutrients is false. The baby's system receives whatever is present in the mother's bloodstream and must adapt to it, for better or worse. The correct phrasing is 'your baby will take what you give him.'

Jessie Inchauspé simplifies complex prenatal nutrition into four key pillars: Choline for brain formation, balanced Glucose for energy without excess, Protein as a fundamental building block, and Omega-3s for brain health. Optimizing these four gives the baby an ideal foundation for growth.

Diet during pregnancy doesn't just build a baby; it actively programs their DNA by placing epigenetic "switches" on genes. These switches influence the baby's future risk for diseases like diabetes, obesity, and even psychiatric disorders, shaping their health for life.

Gestational diabetes is often seen as a random complication, but it's strongly correlated with a mother's glucose levels in the first trimester or even pre-pregnancy. This reframes it as a symptom of pre-existing glucose dysregulation, making early monitoring and intervention crucial.

Animal studies suggest the brain's pleasure response to sugar is heightened during pregnancy. This provides a biological explanation for intensified cravings, reframing the experience as a physiological event rather than a simple lack of willpower.

Animal studies suggest that when a mother's protein intake is low, it sends an epigenetic signal to the baby to "keep your muscles small" in anticipation of a nutrient-scarce world. This programming can result in smaller muscle mass throughout the child's life.

Contrary to the myth of a filtering mechanism, the placenta allows most substances from the mother's bloodstream—including excess sugar and toxins—to pass directly to the baby. It largely trusts that the mother's blood composition is safe for the fetus.

Your DNA is the fixed hardware, but DNA methylation is the dynamic software controlling which genes are expressed. This 'operating system' is constantly updated by lifestyle factors like stress and pollution, making it a key target for influencing health outcomes without changing the underlying genetic code.