Herb & Ingredient Library
NMN
What is NMN, and how is it different from NR?
By Dr. Paulette Y. Jones, DNP-L, RN · N&O LLC
NMN vs NR: What the Research Actually Compares
Nicotinamide mononucleotide
NMN is one of the newest ingredients in our formulas and one of the most searched. It is also surrounded by more marketing than evidence, so here is a level-headed look at what it is, what has actually been shown in people, and how it compares with its cousin, NR.
What it is
NMN — nicotinamide mononucleotide — is a molecule your body makes on the way to producing NAD+, a coenzyme that every cell uses to generate energy and run repair enzymes called sirtuins. NAD+ levels fall with age. NR (nicotinamide riboside) is one step earlier on the same pathway. Both are 'NAD+ precursors' and both raise NAD+ levels in the blood in human studies; whether raising NAD+ translates into measurable benefits is the open question.
What the research has looked at
- A 2021 trial in postmenopausal women with prediabetes gave 250 mg of NMN daily for 10 weeks and reported improved muscle insulin sensitivity compared with placebo.
- A 2023 randomized trial in middle-aged adults used 300, 600, or 900 mg of NMN daily for 60 days and reported a dose-dependent rise in blood NAD+ and improved walking distance at the higher doses, with no safety signal.
- Trials of NR at 250–1,000 mg per day have consistently raised NAD+ but have shown mixed results on physical or metabolic outcomes.
- Head-to-head human trials of NMN versus NR do not yet exist; the comparison is made mostly from separate studies and from the fact that NMN is one step closer to NAD+.
Doses used in research
Human trials have used 250–900 mg of NMN daily for 8–12 weeks. We use 500 mg of Uthever® NMN with 1,000 mg of TMG (trimethylglycine), because NAD+ production uses up methyl groups and TMG helps replace them.
Interactions and cautions
NMN has been well tolerated in trials at up to 1,200 mg daily. The real cautions are about what is not yet known: there is no safety data in pregnancy or nursing, and because NAD+ supports cell metabolism, people with an active cancer or on chemotherapy should get their oncologist's approval first. Some people notice alertness from NMN; if that happens with a bedtime dose, take it with dinner instead.
| Drug / condition | Severity | Why | What to do |
|---|
| Pregnancy / nursing | MODERATE | Insufficient safety data | Avoid |
| Chemotherapy / active cancer | MODERATE | NAD+ precursors theoretically support tumor metabolism; data unclear | Oncologist approval |
| Antidiabetic drugs | MINOR | May affect insulin sensitivity | Monitor |
Who should not take it without a provider's approval: Pregnancy and nursing; active cancer or chemotherapy without oncologist approval; anyone told by a provider to avoid NAD+ precursors.
Where we use it
NMN (Uthever®) 500 mg is in Mitochondrial Protect, our sleep-safe bedtime formula, together with TMG, KSM-66® ashwagandha, phosphatidylserine, saffron, and PQQ.
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Dr. Paulette Y. Jones holds a Doctor of Nursing Practice in Leadership (DNP-L) and is a Registered Nurse with nearly thirty years of clinical experience. She is the founder and formulator of N&O LLC. This article is for education only and is not medical advice. *These statements have not been evaluated by the Food and Drug Administration. N&O LLC products are not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting, stopping, or combining any supplement with a medication.
About the Formulator. Dr. Paulette Y. Jones holds a Doctor of Nursing Practice (DNP) with a specialization in Nursing Leadership (DNP-L) and is a Registered Nurse (RN). Dr. Jones is not a medical doctor (MD or DO), is not a nurse practitioner (NP or APRN), and is not a licensed independent prescriber. She does not hold prescriptive authority and does not practice medicine. In connection with N&O LLC, Dr. Jones acts solely as a product formulator, researcher, and wellness entrepreneur. Nothing on this website, on N&O LLC packaging, or in any communication from N&O LLC constitutes medical advice, diagnosis, or treatment, and no provider–patient relationship is created by purchasing or using any N&O LLC product.
Consult Your Provider First. Before taking any N&O LLC supplement, powder, capsule, or tea, consult your own primary care provider, prescribing clinician, or pharmacist — especially if you are pregnant, nursing, or trying to conceive; under 18; taking any prescription medication (including blood thinners, diabetes, blood pressure or heart medication, antidepressants or other psychiatric medication, thyroid or seizure medication, immunosuppressants, or disease-modifying therapies); living with a diagnosed medical condition; or scheduled for surgery. Bring the full ingredient list to that conversation. Your provider, not N&O LLC, should decide whether a product is appropriate for you.
Regulatory Statement. *These statements have not been evaluated by the U.S. Food and Drug Administration. N&O LLC products are dietary supplements and are not intended to diagnose, treat, cure, or prevent any disease. Dietary supplements are not a substitute for prescribed medication, and no N&O LLC product should be used to replace, reduce, or discontinue any medication without the direction of the prescribing provider. Product and protocol names (including “Shield,” “Guardian,” “Protect,” and similar words) are brand names describing intended wellness support and do not represent claims of medical efficacy. Interaction information is compiled from published literature, is not exhaustive, and should be re-verified with a professional before being relied upon. If you experience an unexpected symptom, stop use and contact your provider.