Nicotinamide riboside is not the same thing as NMN. Nicotinamide riboside also is beneficial to NAD, but it typically has to be taken in pill form only. Meaning it has to pass the stomach lining and can decrease its benefits. In contrast, NMN has other forms to ingest and can contain higher potency and be beneficial.  Additionally, NR has to chemically transform into NMN before it can increase nicotinamide adenine dinucleotide levels in the body. Out of an abundance of caution, we do not recommend that you take NMN and NR at the same time.