Foods rich in micronutrients, such as liver and spinach, are also rich in mitochondria and NAD precursors.

“The NAD breaks down to NR nicotenomide nicotenic acid goes back into cells. Cells rebuilds the NAD stores. Co-enzyme A breaks down to pantaththenate. Pantaththnate gets into cells. Cells make up their own pantaththenate. So, >> so then you know and this h how much do you do you think measuring blood levels of NAD really is indicative of what's going on in the whole system and you know perhaps there is more of an age related decline in NAD in other tissues that we're not able to see in the blood.”