NAD+ Before And After: How to Read the Claims Critically

Both formats are weaker than they look, and they are weak in different ways. Working out which one you are reading is the first move.

Compare this with the categories where the format originated. A wound closes or it does not. A scale reads a lower number. Those outcomes are crude, but they exist outside the person reporting them.

Here the claimed outcome is energy, clarity, mood, or a vaguer sense of restoration. There is no unit, no instrument, and no external record. The before state is being recalled after the fact by someone who has since spent money on changing it, and human memory of how tired you were a fortnight ago is not a reliable instrument even without that pressure.

This is not a reason to treat everyone posting as dishonest. It is a reason to notice that the format cannot do the job it is being asked to do, no matter how sincere the person filling it in.

Set aside the contents of the bag and look at what else the appointment contains, because almost every ingredient known to produce a placebo response is present at once.

There is an invasive procedure, and invasive procedures produce larger placebo responses than pills do. There is a clinical environment with equipment in it. There is a clinician giving sustained attention. There is a substantial fee already paid, and a person who has paid it has an interest in the result. There is an hour or more of enforced rest, no screen, no obligations, which for a tired person is itself an intervention. And there is an expectation, carefully built by the marketing that brought them in, that they will walk out feeling different.

Any of those alone would be enough to muddy a self reported outcome. Together they make an uncontrolled account close to uninterpretable. That is precisely why controlled trials exist, and why the absence of one for the infused form matters more here than it would for an outcome you could measure with a tape.

A more sophisticated version of the format has appeared, and it deserves a more careful answer than the mood posts do.

Somebody has their blood level of the coenzyme measured, undergoes a course, has it measured again, and posts both. The second number is higher. This looks like objective evidence, and in one narrow sense it is: something measurable changed.

Two problems sit underneath it. The first is that a level rising is the least surprising possible result of delivering the substance, and it is not what anyone is buying. Nobody wants a blood level. They want to feel different, and the link between the two is the unproven step in the entire field. Human trials of oral precursors have shown levels rising reliably while functional outcomes came out mixed, which is exactly the pattern that should make a reader cautious about treating the level as a proxy.

The second is that these tests vary in what they measure and how, results move with time of day and recent food, and a single pair of readings has no way to separate a real change from ordinary variation. A number is not more trustworthy than a sentence merely because it has a decimal point.

The other artefact now appearing in these posts is a biological age result, usually from a consumer test based on chemical marks on DNA that vary with age across a population.

These tests are built by finding patterns that correlate with chronological age in large groups, then applying that pattern to an individual. That is a legitimate research tool and a shaky personal instrument. Repeat measurements on the same person can move by a surprising amount, and a shift within that range tells you nothing about whether anything about the person has changed.

Nobody has established that moving one of these readings corresponds to living longer or better. Treating the reading as the outcome, rather than as a proxy for an outcome that would take decades to observe, is the same substitution as treating a blood level as the benefit.

No row on that table can be fixed by adding more of the same. Ten thousand uncontrolled accounts still contain no comparison, which is the missing ingredient rather than a shortage of volume.

Think about what actually surrounds a decision to book a course of infusions.

People do it at a low point, which is the moment from which improvement is most likely regardless of what is done, simply because low points pass. They frequently start other things at the same time: sleeping more, drinking less, taking time off, dealing with whatever produced the exhaustion. The clinic visit itself imposes rest into a week that did not have any. Seasons change. Illnesses resolve.

An honest account would have to disentangle all of that from the bag, and no honest account can, because the person writing it did not have a version of themselves who skipped the course.

Not every account is advertising, and assuming so would be lazy. Plenty are written by people describing what they think happened to them.

Some are not. Affiliate arrangements, discounted or free sessions in exchange for a post, clinic staff and owners posting as clients, and practitioners whose income depends on the format all exist in this market. The tells are worth knowing: a discount code, a clinic tagged, a phrase from the clinic's own marketing appearing verbatim, an account that only ever posts about one provider.

The point is not that a paid post is necessarily false. It is that a paid post has passed through a filter, and the accounts that did not go well were filtered out before you ever saw them. The published set is a selection, not a sample.