← Our writersBiochemistry & mechanism
Rachel Kim
How NAD⁺ actually works in a cell — and where the mechanism story gets ahead of the human data.
Rachel Kim is a pen name used by a writer at NAD Picks. Rachel writes about NAD⁺ biochemistry: the salvage pathway, how NR and NMN differ on the way in, what sirtuins and PARPs consume, and the recurring pattern in this category where a plausible mechanism is sold as a demonstrated result.
What they cover
- NAD⁺ biosynthesis and the salvage pathway
- Nicotinamide riboside versus nicotinamide mononucleotide
- Sirtuin and PARP enzymology
- Mitochondrial energy metabolism
- Coenzyme chemistry and cellular redox
- Mechanism-versus-evidence evaluation
Articles by Rachel Kim
4 pieces- What is NAD⁺? The coenzyme, the claims, and what the trials actually showEvidence
- NMN vs NR vs NAD⁺: what the difference actually is, and which has the better evidenceEvidence
- Is NAD⁺ a peptide? No — and what that tells you about who is selling itEvidence
- Liposomal NAD⁺: does the fat bubble actually get it in?Formats