NMN: 5 Most Frequently Asked Questions Answered
NMN (nicotinamide mononucleotide) is one of the most talked-about ingredients in longevity research. As a UK supplier of NMN, SellHealth UK® is asked the same questions again and again, so we have answered the five most common ones here as plainly as we can.
1. What is NMN, and how does it work?
NMN is a compound the body uses to make NAD+ (nicotinamide adenine dinucleotide), a coenzyme found in every cell. NAD+ is involved in energy metabolism, DNA repair and cell signalling.
NAD+ levels appear to fall with age in some tissues. Taking NMN as a supplement is one way people choose to provide the building blocks for NAD+. Whether this leads to measurable benefits in people is still being researched.
2. What does the research say so far?
Most of the research on NMN has been carried out in animals. Human studies are growing in number but are still small and usually short, often lasting 6 to 12 weeks. Areas researchers are looking at include:
- NAD+ levels: several human trials have measured NAD+ in the blood before and after taking NMN.
- Metabolism: a small number of studies have looked at markers such as insulin sensitivity.
- Physical function: some trials in older adults have measured things like walking speed and grip strength, with mixed results.
NMN is not a medicine and is not intended to diagnose, treat, cure or prevent any disease.
3. How should I take NMN?
Always follow the directions printed on your pack and do not exceed the recommended daily amount. Human studies have generally used between 250 mg and 1,200 mg a day.
- Capsules give you a fixed, pre-measured amount. REJUVE® Pure NMN Capsules provide 500 mg per capsule.
- Powder lets you adjust your serving and can be mixed into a drink or held under the tongue. REJUVE® Pure NMN Powder comes with a measuring scoop; two scoops are about 500 mg.
Many people take NMN in the morning simply because it is easy to remember. See our guide on the best time to take NMN.
4. Is NMN safe? Are there side effects?
In published human studies, NMN has generally been well tolerated at the amounts tested, and reported side effects have been mild and infrequent. Some people report mild digestive upset or headaches. Long-term safety data in people is still limited.
Speak to your GP or pharmacist before taking NMN if you:
- take any prescribed medication, including diabetes or blood pressure medication
- have a medical condition
- are pregnant or breastfeeding
- are under 18
Read more in our article on the potential side effects of NMN.
5. How do I choose a good NMN supplement?
Because NMN is expensive to produce, low-quality and mislabelled products do appear online. Before you buy, check:
- Independent testing: can the seller show you a recent certificate of analysis from an independent laboratory?
- Clear amounts: is the amount of NMN per capsule or serving stated on the label?
- A real business: is there a UK company name, address and a way to contact a person?
- Honest wording: be wary of any product promising dramatic or guaranteed results.
REJUVE® NMN is independently tested by SGS, and we are happy to share the test results with customers. Our guide to avoiding NMN scams covers this in more detail.
From SellHealth UK®
REJUVE® NMN is independently tested by SGS and comes with free Royal Mail Tracked 48 delivery and our 60-Day Empty Bottle Guarantee.
This article is general information, not medical advice. Read our full disclaimer.