Psychosomatic Medicine, 63(1), 40-48
The movement of food is slowed throughout your entire gut
So technically it's not the Stack is fast because it's implemented as Stack, but simply because it's a small memory pool that gets wiped out once it's not needed any more
It converts to NADH and powers ATP production through oxidative phosphorylation DNA repair - NAD+ helps PARP enzymes detect and fix damaged DNA, which keeps the genome stable Sirtuin activation - Sirtuins need NAD+ as a cofactor to regulate metabolism, cellular senescence, and DNA repair NAD+ also helps remodel chromatin, sends cellular signals, and regulates circadian rhythms by working with various enzymes
For a 180 lb individual, this works out to roughly 0.45 to 0.9 mg daily, aligning with the commonly used ranges