NAD+ (nicotinamide adenine dinucleotide) is a coenzyme critical for cellular energy production, DNA repair, and metabolic regulation. While research is still emerging, NAD+ injections are increasingly marketed for bodybuilding performance and longevity. Below is a breakdown of their proposed benefits and current scientific understanding:

1. For Bodybuilding
– Enhanced Energy & Endurance:
NAD+ supports mitochondrial function, which may improve ATP production (cellular energy). This *could* delay muscle fatigue during intense training, though direct evidence in athletes is limited.

Muscle Recovery & Reduced Inflammation:
NAD+ may activate sirtuins (proteins linked to cellular repair) and reduce oxidative stress, potentially speeding recovery. Anecdotal reports suggest reduced soreness, but clinical trials are lacking.

– Neuroprotection & Mental Focus:
NAD+ supports brain health, which *might* enhance workout focus and motivation.

2. For Longevity
– Cellular Repair & Anti-Aging:
NAD+ declines with age, impairing DNA repair and mitochondrial function. Boosting NAD+ *may*:
– Activate sirtuins (linked to longevity in animal studies).
– Reduce age-related inflammation and oxidative stress.
– Improve metabolic health (e.g., insulin sensitivity).

– Neuroprotection & Cognitive Health:
Preclinical studies suggest NAD+ may protect against neurodegenerative diseases (e.g., Alzheimer’s).

– Cardiometabolic Benefits:
Animal studies show improved vascular function and reduced heart stress, but human data is sparse.