10/11/2026
Before NAD+ was a longevity conversation, it was a public health one.
In the early 1900s, pellagra appeared every spring across the poorer American South. In 1915, Joseph Goldberger showed it was dietary, not infectious, and later work named niacin as the missing piece. The fix? Grain fortification, a public health program built entirely on keeping NAD+ topped up.