Brain
Focus, mood, neurotransmitters
The load-bearing nutrients — if these are deficient, this system shows symptoms first. Click any to see daily targets, top food sources, and supplements that supply it.
Lab markers that report on this system’s health.
Save a lab session under My Journey → Biomarkers to see your own values for these.
Where the biochemistry happens for this system.
DNA methylation, homocysteine clearance, methyl-donor supply
Krebs cycle + electron transport — ATP production
Hydroxyapatite formation, osteoblast cofactors
Dopamine, serotonin, GABA precursors + B6/iron cofactors
Heme synthesis, erythropoiesis, oxygen carrying capacity
eNOS → nitric oxide, vasodilation, endothelial function
Cortisol synthesis, adrenal cofactor supply, calming neurochemistry
Systems that share a load-bearing nutrient with this one.