Rare Diseases

Supplement Notice: These products have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Supplements are not a substitute for regular medical checkups or professional healthcare. Do not delay seeking medical evaluation or treatment by taking supplements. Some supplements should not be taken if you are pregnant, nursing, or may become pregnant. Supplements may interact with prescription medications and other drugs — always inform your physician or qualified healthcare provider about any and all supplements you are taking. Always consult your healthcare provider before beginning any new supplement regimen, especially if you have an existing health condition or take other medications. Note: NAD⁺ supplements are not FDA tested and may vary between formulations. There are no studies of NAD⁺ or NR in children, pregnancy, breastfeeding, or those planning to become pregnant. Please discuss the use of NAD⁺ or NR with your healthcare provider before use and if you are taking long term.

MedicalResearch.com Interview with:

Andrew Shao, PhD

Senior Vice President, Niagen Bioscience

[caption id="attachment_75541" align="alignleft" width="200"]Dr. Andrew Shao, PhD Dr. Andrew Shao, PhD[/caption]

MedicalResearch.com: What is NR and how does it differ from NAD+?

Dr. Shao: NAD (nicotinamide adenine dinucleotide) is a vital coenzyme found in every cell, essential for energy production and DNA repair. While levels decline with age, direct NAD+ supplementation is ineffective because the molecule is poorly absorbed and utilized when taken orally. NR (nicotinamide riboside) is a vitamin B3 derivative and an efficient NAD+ precursor — a "building block" of NAD+. Unlike direct NAD+, NR is readily converted into NAD+ through established metabolic pathways. Pharmacists are ideally positioned to help patients understand that when they seek NAD+ supplements, they actually need an effective precursor like NR.