NAD+ for Dogs

How NAD+ helps cells turn food into energy, what studies in dogs have found, and what to know before choosing a supplement

By La Petite Labs Editorial 20 min read

Woman hugging a golden retriever while holding a Hollywood Elixir box
Hollywood Elixir® Daily longevity system · adult & senior dogs Starting at $63/month 

NAD+ helps your dog’s cells turn nutrients from food into usable energy. It also supplies enzymes involved in cellular maintenance, including responses to DNA damage.

Nicotinamide riboside, or NR, is one starting material cells can use to make NAD+. That explains why a product described as “NAD+ support” may list NR on its label. Researchers have begun testing NAD-related interventions in dogs, with findings in cognition, muscle biology and inflammation. Their results help explain both the interest in these supplements and the choices involved in adding one to a dog’s daily routine.

NAD+ is the coenzyme cells use. Nicotinamide riboside (NR), nicotinamide (NAM) and nicotinamide mononucleotide (NMN) are different compounds involved in making it. A supplement sold for “NAD+ support” may therefore contain a precursor such as NR, rather than NAD+ itself. 1

The most relevant controlled trial in older companion dogs found an improvement in owner-rated cognition with a precursor-and-senolytic combination. Activity monitors and the researchers’ cognitive tests did not show a significant improvement between groups. 3 Smaller experiments have examined muscle NAD+ and inflammatory proteins in blood. 4 7 These findings give the field something concrete to build on. The studies reviewed here have not established that an NAD-oriented supplement extends dogs’ lives.

For daily use, the decisions are more specific: which ingredient or blend, what it adds to the existing routine, how much the label directs you to give, and whether your dog will take it.

What NAD+ Does in Cells

NAD+ stands for nicotinamide adenine dinucleotide. It is a coenzyme—a small molecule that helps enzymes carry out chemical reactions. Its two main roles connect energy production with cellular upkeep.

In energy metabolism, NAD+ changes back and forth into a related form, NADH, as it accepts and passes on electrons. Other enzymes consume NAD+ in processes that include responses to DNA damage and the regulation of cellular activity. Cells therefore need both to cycle NAD+ through reactions and to replenish what they use. 1

Woman holding a Hollywood Elixir box beside a pug, a terrier and a food bowl

Mitochondria and Energy

Food contains energy, but a cell needs chemical reactions to make that energy available for its work. As nutrients are broken down, NAD+ accepts electrons and becomes NADH. Electrons carried by NADH can then enter a series of reactions in mitochondria that helps produce ATP, the molecule that supplies energy for much of the cell’s activity. NAD+ becomes available to take part again. 2

The location matters too. In human-cell experiments, researchers disrupted a transporter called SLC25A51, which moves NAD into mitochondria. Mitochondrial NAD levels fell and energy metabolism was impaired. The experiment helped explain how mitochondria obtain something they need to function; it did not test an oral supplement in dogs. 2

NAD+ is part of the machinery that makes food useful to a cell. The calories still come from the food.

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DNA Repair and Cellular Maintenance

Cells also use NAD+ in work that goes beyond producing energy. Enzymes called PARPs use it during responses to DNA damage and in cellular signaling. Another group, the sirtuins, uses NAD+ while helping regulate cellular processes. 1

Here, NAD+ is consumed rather than simply switched to NADH and back. That creates an ongoing need to replace it. Precursors such as NR are starting materials in the pathways cells use to make more NAD+. 1

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What the Inflammation Study Measured

A small study examined inflammation in five older dogs given NMN. Blood levels of IL-6 and TNF-α, two proteins involved in inflammatory signaling, were lower after treatment than before it. 7

The result suggests a biological response worth investigating. It does not tell us that the dogs felt less pain, walked farther or lived longer: those were not the outcomes demonstrated by these measurements. There was also no untreated comparison group in this NMN arm, so the study could not separate treatment from other changes over the same period.

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What the Senior-Dog Cognition Trial Found

A 2024 trial came closer to the questions many owners have about an older dog’s daily life. It enrolled 70 senior dogs with mild to moderate cognitive impairment. Owners answered a questionnaire covering orientation, memory and other behaviors; researchers also used activity monitors and cognitive tests. 3

Dogs were randomly assigned to placebo, a lower dose or the full dose of LY-D6/2. Neither owners nor investigators knew which treatment each dog received. The formula combined an NAD+ precursor with a senolytic intended to target senescent cells—cells that have stopped dividing but remain alive.

The three-month analysis included 59 dogs. Changes in questionnaire scores differed significantly across groups, with the largest improvement in the full-dose group. Activity monitoring and the researchers’ cognitive tests did not show a significant improvement between groups. 3

The paper did not identify its proprietary precursor as NR or NMN, or separate its contribution from the senolytic. The promising finding belongs to the combination that was tested.

NAD+ helps your dog’s cells turn nutrients from food into usable energy.

Does a Healthy Older Dog Need NAD+ Support?

A dog does not have to be unwell for an owner to take an interest in healthy aging. NAD+ research is relevant to that interest because it examines processes cells rely on throughout life: obtaining usable energy and maintaining themselves.

The evidence is less settled on who would benefit from extra support. The studies reviewed here do not establish an age at which a healthy dog needs an NAD+ supplement, or provide a reliable age-by-age chart of NAD+ levels in normally aging dogs. Reduced muscle NAD+ has been documented in dogs with inherited muscular dystrophy; that finding describes a disease, not the usual course of getting older. 4

For a dog who is doing well, supplementation is therefore a proactive choice to evaluate alongside the existing care plan. A new loss of appetite, a change in movement or unfamiliar behavior raises a different question—one that begins with finding out what has changed.

Overhead view of a black-and-white dog beside a food bowl and Hollywood Elixir box

Why NAD+ and Antioxidant Ingredients Appear Together

A longevity formula can bring an NAD+ precursor together with other ingredients involved in cellular maintenance. The names can blur together, even though their roles are different.

NR provides starting material for making NAD+. 1 Reduced glutathione helps an antioxidant enzyme called glutathione peroxidase break down hydrogen peroxide, limiting oxidative damage. 8 CoQ10 carries electrons within mitochondria as part of the process that produces ATP. 9

These roles explain why energy metabolism and antioxidant biology appear in the same discussion. They also make a formula easier to read. NR, glutathione and CoQ10 are three distinct ingredients with different functions; putting them together does not, by itself, establish that the combination works better in dogs.

Hollywood Elixir’s ingredient breakdown lists the ingredients and amounts in our blend.

Woman smiling beside a golden retriever, a green food bowl and a Hollywood Elixir box

What the Muscle-Disease Experiment Found

Another experiment began with a specific disease. In a 2023 pilot, three young dogs with inherited muscular dystrophy received nicotinamide, or NAM, for one month. Muscle NAD+ increased. 4

The researchers also measured the dogs’ breathing pattern at rest, comparing peak airflow while breathing in with peak airflow while breathing out. The change in this ratio differed significantly from that in untreated dogs; the authors interpreted it as an improvement in the breathing measure. Clinical-score and gait results were not statistically significant, and the researchers detected no treatment effect in measured muscle force. 4

It tested NAM in young dogs with muscular dystrophy, a very different situation from giving NR to a healthy senior pet.

Man holding a Hollywood Elixir box while sitting on an outdoor sofa with a golden retriever

NR, NAM and NMN Are Different Compounds

On a supplement label, the full ingredient name matters more than the broad phrase “NAD+ support.” Nicotinamide riboside is NR; nicotinamide is NAM; nicotinamide mononucleotide is NMN. Each connects to NAD synthesis, but they are different molecules. 1

That distinction changes how you read both research and reviews. An account of NMN use does not describe NR, even if both are discussed under “NAD.” A study of a blend does not reveal what each ingredient would do alone. Start with the ingredient actually present, then its amount per serving and the other ingredients alongside it.

Hollywood Elixir uses NR. Our nicotinamide riboside for dogs guide looks more closely at that ingredient.

When Your Dog’s Routine Starts to Change

A shorter walk, less interest in play or a different sleep pattern is an observation worth bringing to a veterinarian. It is not a measurement of NAD+ status. Note when the change began and what it looks like in an ordinary day. A short video of a change in movement can help make the observation clear. 11

This keeps the starting point where it belongs: the dog’s actual experience. Interest in an NAD-oriented supplement can be part of the conversation, alongside the examination, food, medicines and other care already in place.

The veterinary vignette below describes a broader care plan for a senior dog with joint changes. It is not a report of an NAD supplement trial.

NAD+ is the molecule cells use. NR is one of the ingredients they can use to make it.

Woman sitting with a beagle in a kitchen while holding a Hollywood Elixir box

DVM Voice: Clinical Vignette of a Common Pattern in Senior Dog Aging

Case provided by JoAnna Pendergrass, DVM

Rex, a 7-year-old Labrador Retriever, was brought in after his owner noticed he was slower to rise, hesitant on stairs, and less able to play as before. Examination showed stiffness and reduced hip mobility; radiographs confirmed degenerative joint changes.

His care required weight management, veterinary-guided pain control, nutritional support, and rehabilitation — a comprehensive plan, but one started only after visible decline appeared.

Clinical takeaway: Rex’s case reflects the value of proactive aging support: maintaining lean body condition, monitoring mobility early, and supporting cellular resilience, antioxidant defense, and healthy inflammatory balance before decline becomes obvious.

Single-case vignette. Not generalizable. Veterinary oversight is essential for pain, stiffness, or suspected joint disease.

Explore Hollywood Elixir Research →
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What Can an Owner Conclude From the Research?

A laboratory measurement and an owner’s observation reveal different parts of the story. Muscle NAD+ tells researchers about a tissue. An inflammatory protein can show a biological response. A questionnaire brings attention to behavior at home, while activity monitors and cognitive tests examine function in other ways. The studies discussed here have begun connecting those pieces. 3 4 7

The conclusion for a purchase is narrower than the interest of the science: an ingredient can have a well-established role in cells before researchers know what supplementing it will do for a particular dog. A formula is therefore a choice about its ingredients, evidence and practical fit, with expectations that reflect what was actually tested. The NAD technical appendix provides the closer study-by-study reading.

The Hollywood Elixir research library explains the broader research and frameworks informing our formulation.

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What Is Known About Safety?

The available safety findings also depend on the ingredient and the length of the experiment. One study divided ten four-year-old beagles between NMN and control groups for 14 days. Serum NAM increased after NMN administration, and the researchers reported mild increases in creatinine and uric acid. A two-week study provides a short view of the response; it cannot establish long-term tolerability. 5

Another experiment tested an NR-E preparation for 90 days, with a recovery arm. Those animals were rats. The study contributes toxicology information about that preparation, but it does not establish a dog’s serving or demonstrate long-term safety in dogs. 6

Golden spaniel eating from a green bowl beside a Hollywood Elixir box

Where Hollywood Elixir Fits

Hollywood Elixir is La Petite Labs’ daily longevity powder for adult dogs and cats. It combines NR with reduced glutathione, CoQ10 and other antioxidant ingredients, packaged in sachets.

That puts an NAD+ precursor alongside ingredients involved in antioxidant defenses and mitochondrial energy production. For owners considering NR, glutathione and CoQ10 together, the powder supplies them in one formulation. Its convenience is part of the choice; the amounts and any overlap with existing products still matter.

Read the Hollywood Elixir product information for the complete formulation and current serving guidance. The studies discussed here explain the scientific background; they did not test the finished Hollywood Elixir formula.

La Petite Labs’ quality and testing standards describe our ingredient and batch verification approach.

What Results Should You Look For—and When?

The cognition trial assessed its combination at three months. That gives researchers a defined point of comparison; it does not establish when a different NAD-oriented product would produce a visible response. The reviewed studies do not supply a reliable timetable for that. 3

If you are introducing a product to support a specific concern, agree on what to observe and when to review it. For a dog who is already doing well, there may be no obvious change to look for. Staying well over a few weeks would not, on its own, show that a supplement is slowing aging.

A useful review can still address whether the formula fits the care plan, whether your dog tolerates it and whether the routine and cost are sustainable.

What Does It Add to the Existing Routine?

Start with what is already in the bowl and on the shelf. A food labeled complete and balanced is intended to provide the required nutrients for its stated life stage. Whether an additional NAD+ precursor offers a benefit is a separate question from meeting those nutritional requirements. 10

Make one list of food, treats, supplements and medicines, including the amounts you actually give. AAHA’s senior-care guidance recommends a thorough history, including eating habits and the medicines and supplements being given. 11 For supplements, use full product and ingredient names: two products described as “senior support” may contain quite different things, while differently named products may overlap.

An NR-containing formula adds an NAD+ precursor to that inventory. If a product already supplies CoQ10 or glutathione, a combined formula introduces a question about overlap and amounts. That is a specific comparison to make with your veterinarian before adding or replacing a supplement. A single powder may simplify the routine, but it should not make the ingredient list harder to see.

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Serving Size, Daily Cost and What Your Dog Will Take

A 30-sachet box is not automatically a month’s supply. For a hypothetical $60 box, directions of one sachet a day would mean 30 days at $2 a day; two sachets a day would mean 15 days at $4 a day. Use the current price and directions for your dog’s size when comparing products—these example numbers are not Hollywood Elixir’s price or serving guidance.

Then consider the part your dog has to cooperate with: taking it. A powder, chew, capsule or liquid has to fit the product’s directions and a feeding routine your dog accepts. Check how it is meant to be given, including whether it is to be mixed with food. A format that makes sense on paper may be awkward at breakfast.

The studies reviewed here do not establish a universal canine dose for NR or for NAD-oriented blends. A scoop or sachet is not a standard amount across formulas, and a human or rat research dose is not a home dosing plan. Follow the applicable pet-product directions and the plan agreed for your dog. The NR for dogs guide covers the ingredient-specific evidence.

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A Record That Is Useful at the Next Review

Keep the record short enough to use. Note the product and serving, appetite, stool, sleep and the activity you agreed to watch. For a familiar walk, record how far your dog comfortably goes, where they stop and how recovery looks afterward. Use reasonably similar conditions when making comparisons.

If several people care for the dog, choose one person to keep the main record so the descriptions stay consistent. Note changes in food, exercise, medicines or other care during the same period. A better week is easier to interpret when you know what else happened that week.

At the review point, the notes will not prove cause and effect, but they can make a decision about continuing, adjusting or stopping more concrete than a memory of whether your dog seemed generally brighter.

When to Consult Your Veterinarian

Discuss a new supplement before starting if your dog has a medical condition, takes medicines, receives several other products, or you are considering a human formulation. Bring the labels and the specific purpose you have in mind; that makes the conversation more useful than asking about “NAD” in the abstract.

New or worsening symptoms need their own assessment. Seek advice for vomiting, diarrhea, appetite loss or other concerning changes after introducing a product. If an accidental excess occurs, have the exact product, estimated amount and time it was taken ready when you contact the veterinarian.

Hollywood Elixir puts NR, an NAD+ precursor, alongside reduced glutathione and CoQ10 in one daily powder.

Educational content only. This material is not a substitute for veterinary advice. Always consult your veterinarian about your dog’s specific needs. These statements have not been evaluated by the Food and Drug Administration. Products mentioned are not intended to diagnose, treat, cure, or prevent any disease.

Glossary

NAD+: Nicotinamide adenine dinucleotide, a coenzyme used in cellular metabolism and enzyme activity.

NADH: The reduced partner of NAD+ in electron-transfer reactions.

Coenzyme: A molecule that helps an enzyme carry out a chemical reaction.

Precursor: A substance involved in the production of another molecule. NR, NAM and NMN are distinct compounds involved in NAD synthesis.

NR: Nicotinamide riboside. NAM: Nicotinamide. NMN: Nicotinamide mononucleotide.

Biomarker: A measured biological feature, such as a blood marker or tissue concentration.

Clinical outcome: A measured aspect of health or function in the population being studied.

Senolytic: An intervention intended to target senescent cells. The senior-dog cognition trial tested a combination described as containing a senolytic and an NAD+ precursor.

Related Reading

Aging & Senior Dog Guidance
• Dog Age Calculator
• Dog Lifespan by Breed
• Dog Dementia
• Lethargy in Dogs
• My Dog Won't Eat
• Dog Pacing At Night
• Dog Licking Paws
• Can Dogs Dehydrate

Healthy Aging Support
• NAD+ for Dogs
• NMN for Dogs
• Antioxidants Supplements for Dogs
• Best Senior Dog Supplements & Vitamins
• Rapamycin for Dogs

References

Numbered references identify the sources used for specific claims. Read the study design, species and evidence boundaries alongside each finding.

  1. Ratajczak J, Joffraud M, Trammell SA, et al. NRK1 controls nicotinamide mononucleotide and nicotinamide riboside metabolism in mammalian cells. Nature communications · 2016· DOI 10.1038/ncomms13103Study design/context: Mechanistic studySpecies/context: mouse, mammalian cellsEvidence boundary: Experimental pathway work; not canine or feline absorption, dosing, or clinical efficacy.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4 · ↩ 5 · ↩ 6
  2. Kory N, Uit de Bos J, van der Rijt S, et al. MCART1/SLC25A51 is required for mitochondrial NAD transport. Science advances · 2020· DOI 10.1126/sciadv.abe5310Study design/context: Mechanistic studySpecies/context: human cellsEvidence boundary: Intracellular transport mechanism; no oral precursor trial in dogs or cats.↩ 1 · ↩ 2
  3. Simon KE, Russell K, Mondino A, 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· DOI 10.1038/s41598-024-63031-wStudy design/context: Randomized controlled clinical trialSpecies/context: dogEvidence boundary: Combination-specific owner-assessed cognition result; does not isolate NR or establish efficacy of another formula.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4 · ↩ 5
  4. Cardoso D, Barthélémy I, Blot S, et al. Replenishing NAD+ content reduces aspects of striated muscle disease in a dog model of Duchenne muscular dystrophy. Skeletal muscle · 2023· DOI 10.1186/s13395-023-00328-wStudy design/context: Muscular dystrophy disease-model experimentSpecies/context: dogEvidence boundary: Dogs with inherited muscular dystrophy received NAM, not NR. Not healthy senior-dog or feline evidence.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4 · ↩ 5
  5. You Y, Gao Y, Wang H, et al. Subacute Toxicity Study of Nicotinamide Mononucleotide via Oral Administration. Frontiers in pharmacology · 2020· DOI 10.3389/fphar.2020.604404Study design/context: Subacute oral toxicology studySpecies/context: dog, mouseEvidence boundary: Beagle exposure lasted 14 days and mild creatinine/uric-acid increases were reported. Not NR or long-term efficacy evidence.↩
  6. Marinescu AG, Chen J, Holmes HE, et al. Safety Assessment of High-Purity, Synthetic Nicotinamide Riboside (NR-E) in a 90-Day Repeated Dose Oral Toxicity Study, With a 28-Day Recovery Arm. International journal of toxicology · 2020· DOI 10.1177/1091581820927406Study design/context: 90-day oral toxicology study with recovery armSpecies/context: ratEvidence boundary: Sprague-Dawley rats, not dogs or cats. Rat toxicology cannot establish long-term pet safety or a pet serving.↩
  7. Zeng M, Zhou T, Li Z, et al. Transcriptomic and intervention evidence reveals domestic dogs as a promising model for anti-inflammatory investigation. Aging Cell · 2024· DOI 10.1111/acel.14127Study design/context: Exploratory canine biomarker study with separate intervention arms and before-and-after comparisonsSpecies/context: dogEvidence boundary: Small NMN biomarker arm without an untreated placebo group; does not establish NR effects, clinical benefit or lifespan extension.↩ 1 · ↩ 2 · ↩ 3
  8. G C Mills. Hemoglobin catabolism. I. Glutathione peroxidase, an erythrocyte enzyme which protects hemoglobin from oxidative breakdown. Journal of Biological Chemistry · 1957· PMID 13491573Study design/context: Biochemical mechanism experimentEvidence boundary: Biochemical erythrocyte experiment; no oral product effect inferred↩
  9. Cristina Cerqua, Alberto Casarin, Fabien Pierrel, Luis Vazquez Fonseca, Giampiero Viola, Leonardo Salviati, Eva Trevisson. Vitamin K2 cannot substitute Coenzyme Q10 as electron carrier in the mitochondrial respiratory chain of mammalian cells. Scientific Reports · 2019· DOI 10.1038/s41598-019-43014-yStudy design/context: Cell experimentsSpecies/context: human cells, yeastEvidence boundary: Human-cell/yeast deficiency experiments; no canine supplement benefit inferred↩
  10. U.S. Food and Drug Administration. “Complete and Balanced” Pet Food. U.S. Food and Drug AdministrationStudy design/context: Official guidanceSpecies/context: dogs, catsEvidence boundary: Nutritional adequacy labeling; does not establish whether an NAD+ supplement benefits dogs.↩
  11. American Animal Hospital Association. Evaluating the Healthy Senior Pet. American Animal Hospital Association · 2022Study design/context: Official guidanceSpecies/context: dogs, catsEvidence boundary: Professional senior-care guidance about history and observation; not an NAD+ efficacy trial.↩ 1 · ↩ 2

FAQ

How do I know if my dog might benefit from NAD⁺ support?

Changes in play, stamina, sleep, or movement do not diagnose low NAD+. Ask your veterinarian to investigate the cause before choosing a supplement. The studies in this guide do not identify a reliable checklist for which healthy dogs will benefit.

Is NAD⁺ safe for dogs when used long-term?

The cited studies do not establish long-term safety for every NAD precursor or formula in dogs. NAM, NMN, NR, and combination products have different evidence. Review the complete product, current instructions, and medical history with your veterinarian.

Why does NAD⁺ decline as dogs age?

The studies in this guide do not establish a universal NAD+ decline rate in normally aging dogs. Findings in muscular dystrophy or other species cannot supply that estimate. NAD metabolism is a research topic, not a diagnosis made from slower recovery or more rest.

Is NAD⁺ support appropriate for senior dogs?

Age alone does not establish that a dog needs a NAD-oriented supplement. Discuss reduced activity, pain, sleep changes, or cognition with your veterinarian. A senior-dog trial tested a specific precursor-and-senolytic combination; it does not establish NR-alone benefits.

Is it better to give NAD⁺ in the morning or evening?

The cited research does not establish an ideal morning or evening schedule for dogs. If a product is appropriate, follow its current instructions and the routine agreed with your veterinarian.

Is NAD⁺ safe for dogs with sensitive stomachs?

A sensitive stomach is a reason to review the entire formula and monitor tolerance. The cited studies cannot guarantee that NR or a NAD-oriented blend will be tolerated. Seek veterinary advice if a new product causes vomiting, diarrhea, appetite loss, or other concerning changes.

Can dogs take too much NAD⁺ precursor?

Do not exceed product directions or turn a rat or human research dose into a dog serving. The cited studies do not establish a universal NR dose or upper limit for dogs. Discuss accidental excess with a veterinarian and provide the exact product and amount.

Is NAD⁺ support safe with other supplements?

Compatibility depends on the complete formula, dose, medical history, and other products. A shared role in normal metabolism does not guarantee that combinations are safe. Bring all supplement and medication labels to your veterinarian.

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