Longevity
Healthspan + cellular defense
This isn't a single organ — it's the cluster of inputs most consistently tied to a longer healthspan across large studies. Omega-3 and vitamin D show up repeatedly in all-cause-mortality and biological-aging data; vitamin K and magnesium protect the cardiovascular and metabolic systems that tend to fail first; and selenium, vitamin E, and NAC (glutathione's precursor) defend cells against the oxidative and inflammatory damage that accumulates with age. Think of it as the overlap zone where the cardiovascular, metabolic, and cellular-defense inputs all reinforce each other.
How your supplements + diet cover this system right now — the nutrients feeding it, where the gaps are, and your own lab readouts.
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
Glutathione, SOD, catalase — quenching oxidative stress
Hydroxyapatite formation, osteoblast cofactors
Dopamine, serotonin, GABA precursors + B6/iron cofactors
CYP450 phase I + glutathione/sulfation/glycine phase II
Insulin sensitivity, GLUT4 translocation, glycemic control
Heme synthesis, erythropoiesis, oxygen carrying capacity
Cholesterol/triglyceride handling, β-oxidation of fatty acids
Prebiotic fibre + live cultures → short-chain fatty acids (butyrate)
eNOS → nitric oxide, vasodilation, endothelial function
Cortisol synthesis, adrenal cofactor supply, calming neurochemistry
Systems that share a load-bearing nutrient with this one.