Scientific Article

NMN has not yet been shown in human trials to “cure” erectile dysfunction, but by raising NAD⁺, improving endothelial/mitochondrial tone, and helping the same metabolic pathways that support nocturnal penile tumescence (NPT), it can plausibly make morning erections more noticeable in some aging or metabolically stressed men — especially those whose erections were being held back by low-grade endothelial dysfunction, poor sleep, or declining NAD⁺. That is an inference from vascular, NAD⁺, and NPT data — not a dedicated “NMN for erections” RCT. [1] [2] [4] [5]