Is anyone able to make sense of Charles Brenner's current stream of Tweets about NR affecting NAD? One of his supporters summarized it as "Asking4aFriend
@FriendAsking4a
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1h
"NR is difficult to extract from blood & moreover, when you draw blood, you accidentally break some cells releasing PNP, which degrades NR to NAM." Brenner explained why blood tests may not show NR as being present." That sounds like it might be affirming or trying to explain away the claim I posted before about Trammell showing Tru Niagen has no effect on NAD levels. Or it might just be more directed to the bioavailability issue generally. Can anyone more familiar with the testing issues interpret?