Methylation regulates gene expression, neurotransmitter activity, detoxification, and redox signaling. When methylation runs too fast due to genetic variants (e.g., MTHFR, COMT) or excessive methyl-donor intake, it can overstimulate catecholamines like dopamine and norepinephrine, leading to emotional volatility, anxiety, and tantrums.
Orthomolecular(the right nutrient in the right dose) medicine focuses on restoring equilibrium by reducing methyl overload and stabilizing redox balance.
Three key nutrients work synergistically:

1. Vitamin B3 (Niacinamide or inositol hexanicotinate)
Functions as a methyl sink, consuming methyl groups via nicotinamide-N-methyltransferase (NNMT). This lowers SAMe load, dampens dopamine overstimulation, and normalizes mood regulation.
Ref: Ueland PM et al., J Nutr 2012; 142(12):2050–2056.

2. Vitamin C (Ascorbic Acid)
A master redox regulator and cofactor in neurotransmitter synthesis and degradation. It recycles tetrahydrobiopterin (BH₄), stabilizes dopamine metabolism, and counteracts oxidative stress that drives methylation imbalance.
Ref: Harrison FE & May JM, Antioxid Redox Signal 2009; 11(7):1645–1656.

3. Collagen / Glycine
Provides amino acids that support inhibitory neurotransmission, glutathione synthesis, and connective-tissue repair, reducing nervous-system hyperreactivity.
Ref: Yalcin AS, Amino Acids 2021; 53(9):1335–1357.

Vitamin b3 B3 helps lower excess methyl groups, vitamin C restores redox control and cofactor balance, and glycine supports inhibitory tone. Together they help normalize neurotransmitter signaling and calm the overactivated child’s nervous system.

Give your child 1-2 grams of vitamin c, 100-250mg of vitamin B3 non flush form, and a high protein snack or collagen power.

If your child calms down, they were overmethylating!