NMN for Dogs in the UK: What It Is, What the Research Shows and How to Choose.
Updated: 2 days ago
NMN (nicotinamide mononucleotide) is a compound the body uses to make NAD+, a molecule every cell needs for normal energy metabolism. More UK owners are asking about NMN for their dogs, especially as they get older. The honest picture: research in dogs is early and small, short-term safety data looks reassuring, and no study shows NMN makes dogs live longer. This guide covers what we know, how much to give, and how to choose a product.
Quick answers
• What is it? A building block the body turns into NAD+.
• Is there evidence in dogs? A few small studies. They are interesting, but not proof of benefit.
• Is it safe? Short-term studies at high doses reported only mild changes in some blood markers. Ask your vet if your dog has a health condition or takes medication.
• How much? Follow the product's feeding guide by weight. For our chews, that is 1 to 3 a day.
What is NMN?
NMN is a naturally occurring compound found in small amounts in some foods. Inside cells it is converted into NAD+ (nicotinamide adenine dinucleotide). NAD+ is involved in turning food into energy and in many routine cell processes.
Studies in people and laboratory animals suggest NAD+ levels tend to fall with age. That is why researchers are studying NAD+ "precursors" such as NMN and nicotinamide riboside (NR), which the body can use to make it.
Why are UK dog owners interested in NMN?
Dogs are living longer, and owners want to support them well into their senior years. NMN has had a lot of attention in human wellness, and several brands now make dog-specific versions, usually as soft chews combined with familiar ingredients such as glucosamine and fish oil.
Most of these brands are in the US. Buying from overseas can mean slow delivery and unexpected import charges, which is one reason owners look for a UK stockist.
What the research in dogs shows so far
Three published studies are most often discussed. Each is useful, and each has clear limits.
Study | Dogs | What was given | What was found | Limits |
10 healthy adult beagles | 1,340 mg NMN a day for 14 days | Only mild increases in creatinine and uric acid | A short safety study, not a test of benefit | |
17 retired police dogs, average age 9 (NMN was one of three groups) | 2.5 g NMN every 2 days | Two blood markers that tend to rise with age (IL-6 and TNF-α) fell | Very small groups, no untreated comparison group | |
70 senior dogs, 59 finished | A combination product: a senolytic plus an NAD+ precursor, not NMN alone | Owners reported better scores on a cognitive rating scale at 3 months | Large placebo effect; in-clinic tests showed no difference |
What this means for you: the research supports continued interest, not firm promises. No study shows that NMN chews make dogs live longer, or that they prevent or treat any condition. Be wary of any product that says otherwise.
For scale, the 1,340 mg daily dose in the safety study is about 17 times the NMN in one of our chews (77 mg).
Is NMN safe for dogs?
NMN appears to be well tolerated by dogs in the short term, but research is still limited. In a published 2020 safety study, healthy beagles were given NMN twice daily for 14 days. They remained healthy, with only a mild rise in some kidney-related blood markers (Frontiers in Pharmacology).
There are not yet long-term studies in dogs.
Always check with your vet before starting any new supplement, especially if your dog has a kidney or liver condition, is on medication, or is pregnant. Use a product made for dogs and follow the feeding guide on the pack. Our PET NMN chews contain fish oil, so they’re not suitable for dogs with a fish allergy.
How much NMN should I give my dog?
There is no official dose of NMN for dogs. Follow the feeding guide of the product you choose, which is usually set by body weight. For PET NMN Longevity Chews for Dogs (77 mg NMN per chew), the guide is:
Dog's weight | Chews a day | NMN a day |
Up to 18 kg (40 lb) | 1 | 77 mg |
18 to 36 kg (41 to 80 lb) | 2 | 154 mg |
Over 36 kg (80 lb) | 3 | 231 mg |
Give the chew as a treat with or after food, and keep fresh water available.
How to choose an NMN supplement for dogs: 7 checks
1. Made for dogs. Human NMN capsules aren't designed or dosed for dogs.
2. Clear amount per chew. Look for the milligrams of NMN on the label, not just a "blend".
3. A feeding guide by weight. Ideally in kilograms as well as pounds.
4. A full ingredient list. Including flavourings and anything your dog may be allergic to.
5. No disease claims. Supplements can't claim to treat, prevent or cure illness. Claims like that are a warning sign.
6. A seller you can reach. A UK address, phone number and returns policy.
7. UK stock. It arrives faster and avoids surprise import charges.
What about NMN for cats?
Cats need a product made for cats. Their metabolism and dosing differ from dogs', and some ingredients and flavourings used in dog chews aren't suitable for them. Never give a dog chew to a cat. If you have a cat, see PET NMN Longevity Chews for Cats.
Where to buy NMN for dogs in the UK
Nompharma stocks Renue by Science PET NMN Longevity Chews for Dogs in the UK. Each chew contains 77 mg NMN plus glucosamine, chondroitin, MSM, resveratrol, fish oil and flaxseed.
• £37.50 for 60 soft chews
• Dispatched from Nottingham, tracked UK delivery in 3 to 5 working days, no import fees
• Free UK delivery on orders over £100
• Sold by Nompharma, A UK based company.
FAQs
Is NMN the same as NAD+? No. NMN is one of the building blocks the body uses to make NAD+.
Is NMN better than NR for dogs? Both are NAD+ precursors. There isn't enough research in dogs to say one is better.
How long before I see a difference? Every dog is different, and there's no reliable timeline. Keep up a balanced diet, exercise and regular vet check-ups.
Can I give my dog human NMN? We don't recommend it. Human products aren't formulated or dosed for dogs and may contain unsuitable ingredients.
Do I need a vet's prescription? No. NMN chews are not medicines. Still, speak to your vet if your dog has a health condition or takes medication.
Is NMN safe for dogs?Short-term research suggests dogs tolerate NMN well, but long-term studies are still limited. Check with your vet before starting any new supplement. (Link this answer to your “Is NMN safe for dogs?” section above.)
How much NMN should I give my dog?Follow the feeding guide on the pack, which is based on your dog’s weight. Don’t give more than the recommended amount. If your dog is very small, very large or elderly, ask your vet.
Can my dog take human NMN supplements?It’s best to use a product made for dogs. Human supplements are dosed for people, and some contain sweeteners such as xylitol, which is toxic to dogs.
Can I give NMN with other supplements or medication?Speak to your vet first, especially if your dog takes regular medication or has a kidney or liver condition.
Where can I buy NMN for dogs in the UK?You can buy PET NMN Longevity Chews for Dogs from Nompharma, a UK company based in Nottingham, with UK stock and fast delivery.
Important
This guide is general information, not veterinary advice. If your dog seems unwell or its behaviour changes, see your vet.
Sources
• You Y, et al. Subacute toxicity study of nicotinamide mononucleotide via oral administration. Frontiers in Pharmacology, 2020. Read the study
• Zeng M, et al. Transcriptomic and intervention evidence reveals domestic dogs as a promising model for anti-inflammatory investigation. Aging Cell, 2024. Read the study
• Simon KE, et al. A randomized, controlled clinical trial demonstrates improved owner-assessed cognitive function in senior dogs receiving a senolytic and NAD+ precursor combination. Scientific Reports, 2024. Read the study
• Renue by Science, PET NMN Longevity Chews for Dogs: ingredients and feeding guide. Product page
Important
If your dog has an existing medical condition, takes medication, is pregnant or nursing, or you are unsure whether a new supplement is appropriate, speak with your veterinary professional before introducing it.
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