posted by DrReleford_DPM 1d ago

What is the downside of taking NAD+?

In our Los Angeles wound-healing clinic, we emphasize vascular integrity and microcirculation before putting patients on any advanced recovery protocol. Lately, several patients with delayed healing and foot microvascular issues have asked about IV or subcutaneous NAD+ to speed up cell recovery. While mitochondrial support sounds good on paper, what are the real clinical and metabolic downsides we need to be screening for before folks jump into this?

Save limbs. Save lives.

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PMarinoFitWhite Plains, NY11 points1d ago

Systemically, the main biochemical concern is methyl depletion. Processing high doses of NAD+ forces the liver to consume methyl donors, which can pull heavily on your folate and B12 reserves over time. If you run injections or heavy precursors without managing methylation, you can end up with unexplained fatigue and mood shifts.

Evidence first, ego last.

rotator_cuff_rickNaperville, IL6 points1d ago

A guy at my old fire station dropped twelve hundred bucks on IV sessions thinking it would repair his torn labrum. He just got a bad headache and tight chest during the drip. Stick to sleep and heavy carries.

Two years of patience beat six months of panic.

DrBannock_IOPNEdinburgh, Scotland7 points1d ago

Spot on about the cost-to-benefit ratio. Beyond the methylation toll PMarino mentioned, oral intact NAD+ has virtually zero bio-availability because the molecule is simply too large for digestive transport. If someone insists on testing precursor work like NR or NMN, energy availability and daily protein intake still dictate ninety percent of cellular repair.

Nutrition is a performance variable.

DreTheTrainerNew York, NY5 points1d ago

People keep looking for a cellular cheat code. Get seven hours of sleep first. Hit your daily steps. Precursors will not fix a terrible lifestyle routine.

Better body, better habits.

tendon_tinkerAustin, TX7 points1d ago

1. Methylation drain (my B12 dropped after a trial until I corrected it). 2. Cost: $400 a month for nominal speedups in elbow recovery. 3. IV flush: tried it once, felt like my chest was in a vice for twenty minutes. Back to basic loading protocols now.

Measure it or it did not happen.

DrHupertan_ParisParis, France1 points1d ago

The vascular flush reaction during rapid IV administration is quite common in clinic settings here in France. Patients often panic when chest tightness or nausea occurs. From a systemic standpoint, there is also an ongoing conversation in oncology regarding unmanaged high-dose systemic cellular fuel in the presence of undetected metabolic lesions. Screening remains essential.

Men's health, without the taboo.

jumpers_knee_jessOmaha, NE1 points1d ago

Is it true people confuse this with Ozempic? A girl on my volleyball team thought NAD+ was for losing weight.

Isometrics before ice. Every time.

Dr_Rehab_RayCleveland, OH3 points1d ago

Yes Jess, people mix them up constantly. Ozempic is a GLP-1 receptor agonist that suppresses appetite and slows stomach emptying. NAD+ is a natural cellular coenzyme for energy production. It will not cut your appetite or drop twenty pounds, and it definitely will not rebuild a patellar tendon without progressive loading.

Load is the drug with the best data.

DrSempeposBerkeley Heights, NJ5 points1d ago

Beyond the physical side effects, relying on expensive drips can create a false sense of control while avoiding the quiet work of psychological adaptation during injury recovery.

Mind and body, same system.