Vitamin D3 seems pretty critical for people who code too much
D3 + K2
K2 supplementation can cause hypertension for some
Problem is that vitamin D suppletion seems uncorrelated with all-cause mortality, where as sun expose does increase longevity
I will say that - anecdotally - vitamin D suppletion does help with my general feeling of well being during the winter months, though
Vitamin D. Was diagnosed with extreme lack of 2 winters ago. Don't ever want to be in this state again.
Gotta get outside on every sunny day you can, walking and D3