SAM-e is a natural compound present in all cells of the human body and represents one of the main universal methyl group donors (methylation processes). It is involved in: synthesis of neurotransmitters (serotonin, dopamine, noradrenaline), regulation of gene and epigenetic expression, hepatic detoxification and glutathione synthesis, synthesis of membrane phospholipids (such as phosphatidylcholine). Thanks to these functions, SAM-e has been studied in the neuropsychiatric, hepatic, and musculoskeletal fields, proving particularly interesting in conditions characterized by dopaminergic, inflammatory, and mood regulation alterations — aspects often present in AuDHD as well. SAM-e participates in the synthesis and functional stability of serotonin and dopamine, neurotransmitters often dysfunctional in ADHD and autism. Several clinical studies have shown antidepressant efficacy comparable to SSRI and tricyclic drugs, often with better tolerability. It can improve motivation, initiative, mood tone, and reduce “brain fog”. Studies indicate efficacy in major depression, especially in partially resistant forms or as an augmentation of antidepressant therapy. It may be useful in irritability, emotional impulsivity, and affective lability — symptoms frequently found in AuDHD. Modulates oxidative stress by increasing glutathione synthesis. Reduces inflammatory markers and may contribute to neuronal protection and improvement of synaptic plasticity. SAM-e is essential in methylation processes involved in: regulation of gene expression, neuronal maturation, membrane stability, epigenetic processes altered in various neuropsychiatric conditions, including ADHD and ASD. Osteoarthritis (pain reduction and improvement of joint function), Support in liver diseases (cholestasis, steatosis, toxic liver diseases). The most frequent studies use: 400–800 mg/day as a common dose, up to 1200–1600 mg/day in some clinical protocols. Possible side effects: nausea, headache, insomnia, restlessness, mild anxiety. Contraindicated/to be used with caution in: bipolar disorder (may trigger mania or hypomania), in combination with SSRIs, SNRIs, tricyclics → risk of serotonin syndrome, in pregnancy/breastfeeding (insufficient data), SAM-e represents an interesting nutraceutical support for: mood, emotional regulation, cognitive function, neuroinflammation, epigenetic mechanisms, with potential applications also in AuDHD. It does not replace medical treatments, but can be integrated into a multidisciplinary approach, always under clinical supervision.
Improvement of mood and mental energy
Support in emotional regulation and mood disorders
Neuroprotective and anti-inflammatory action
Role in methylation and brain epigenetics
Other areas of clinical interest
Dosage
Better to start at a low dose and increase gradually. Preferable intake in the morning, on an empty stomach, because it can be activating.Safety and precautions
Conclusion


