Natural Alternatives to Longevity Drugs for Dogs

What has evidence in dogs today, what the popular supplements really show, and how to judge a product sold as an alternative.

By La Petite Labs Editorial 10 min read

As Seen On

Woman hugging a golden retriever while holding a Hollywood Elixir box
Contents

No supplement or food has been shown to do what LOY-002, rapamycin or metformin is being tested for in dogs. What does have dog evidence is plainer: keeping your dog lean, exercise, dental care, regular vet checks and a complete diet. In one lifelong study, lean Labradors lived a median 1.8 years longer.

Here's what the evidence in dogs shows for each popular supplement, and how to judge a product sold as an alternative.

La Petite Labs publishes this guide and makes Hollywood Elixir, a supplement for dogs and cats. We're not affiliated with Loyal or any company named here.

Is there a natural alternative to LOY-002 or rapamycin for dogs?

No. No supplement, herb or food has been shown to do what LOY-002 or rapamycin is being tested for, and none has been shown to extend a dog's life. Products sold as natural alternatives borrow the drugs' language without the dog trials.

That doesn't mean there's nothing to do. The steps with real dog evidence are free or already part of good care, and they're covered below. If you're also wondering whether your dog would qualify for a longevity drug at all, use our eligibility guide.

Natural alternatives at a glance

Natural alternative to LOY-002?
None shown; no supplement has been tested for what it targets in dogs
Natural alternative to rapamycin?
None; rapamycin is itself made by bacteria, and it's sold only as a prescription drug
Best-supported step
Keep your dog lean: a median 1.8 years longer life in a 48-dog study
Also backed by dog data
Exercise, dental care, regular vet checks and a complete diet
Strongest supplement evidence
Omega-3s, for arthritis pain rather than lifespan
NAD+ precursors and senolytics
One 70-dog trial of a combination: owner-rated thinking improved; no lifespan data
With a longevity drug
Combinations are untested; tell your vet everything your dog takes

Longevity drugs vs the closest natural ideas

DrugWhat it's being tested forClosest "natural" ideaWhat the evidence in dogs shows
LOY-002A longer healthy life in dogs 10+, by lowering insulinKeeping a dog lean48 Labradors fed 25% less than littermates lived a median 1.8 years longer
RapamycinA longer, healthier life, in the TRIAD trialProducts sold as "natural rapamycin"No dog trials found
MetforminNo dog aging trial foundBerberine, sold as "natural metformin"No trials in pet dogs; it changed how a diabetes drug behaved in 6 beagles
All threeHealthy agingNAD+ precursors with a senolyticOne 70-dog trial: owners rated thinking better at 3 months; no lifespan data

Competitor label and pricing facts checked November 11, 2026. Sources are listed in the References section below.

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

What are dog longevity drugs being tested for?

Dog longevity drugs are being tested to extend healthy lifespan, something no supplement has been tested for in dogs. LOY-002, from the company Loyal, aims to lower insulin and improve insulin sensitivity in dogs 10 and older. It isn't approved, Loyal keeps its active ingredient confidential, and the FDA's review of its last section is expected in 2027.12 Rapamycin is a prescription human drug being tested in the Dog Aging Project's TRIAD trial, in dogs 7 and older weighing at least 44 lb, once a week for a year.3

Metformin is a human diabetes drug that lowers insulin resistance. In dogs it has been studied for problems such as insulin resistance in Cushing's disease, and we found no trial testing it for aging.4 A vet can prescribe rapamycin or metformin off-label today, while LOY-002 can't be prescribed at all yet.51 Loyal's large-dog drugs, LOY-001 and LOY-003, target the growth signal IGF-1 instead.1 See our guides to LOY-002, rapamycin and metformin.

Woman in sportswear holding a Hollywood Elixir box beside a black-and-tan dog outdoors

Natural alternatives vs longevity drugs: what does the evidence show?

The evidence in dogs for each "natural" idea is far thinner than for the drug it's compared with, and only calorie control has lifespan data.67 The table pairs each drug with the idea most often offered as its alternative, using the dog studies described below.89

Only the first row comes from a controlled study of lifespan. The rest are either untested in dogs or measured something short of lifespan.

Woman holding a Hollywood Elixir box above her forehead beside a Bernese mountain dog outdoors

What helps a dog live longer today?

A longer, healthier dog life today rests on five everyday steps with dog evidence behind them, and none of them is a pill:

  • Keep them lean. It's the strongest evidence there is for a longer dog life.67
  • Keep them moving. More active older dogs show fewer signs of dementia.10
  • Look after their teeth. More frequent dental cleanings are linked to longer lives in clinic records.11
  • See the vet regularly. Regular exams help catch and treat illness early.12
  • Feed a complete and balanced diet that suits their life stage.13

Most of this comes from studies that show links, not proof. The lean-feeding study is the exception: it compared littermate pairs fed different amounts for life.6

Golden retriever nuzzling a woman holding a Hollywood Elixir box on the grass beside a food bowl

Does keeping a dog lean help it live longer?

Yes, and it's the best evidence there is for a longer dog life. In a Purina study, 48 Labrador Retrievers were paired, and one dog in each pair was fed 25% less than its pair-mate from 8 weeks of age for life.6 The leaner dogs lived a median of 1.8 years longer, and late-life diseases, especially osteoarthritis, generally started later.7

A study of 50,787 neutered pet dogs at about 900 North American clinics found the same pattern. In all 12 breeds studied, dogs that were overweight in middle age had shorter median lives, with the biggest gap in Yorkshire Terriers: 13.7 years against 16.2.14 Ask your vet for a target weight before you change portions, and see our diet and dog longevity guide.

No supplement or food has been shown to do what LOY-002, rapamycin or metformin is being tested for.

Does exercise help dogs age well?

Exercise is linked to better thinking in older dogs. In 11,574 dogs aged 6 to 18 in the Dog Aging Project, more active dogs had milder signs of canine cognitive dysfunction, a dog form of dementia, and about half the odds of reaching a clinical level.10 The researchers say the study can't prove cause, since dogs with dementia may simply move less.

We found no study showing that exercise alone extends a dog's lifespan. Ask your vet how much activity suits your dog's joints and heart.

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

Does dental care help dogs live longer?

Dental cleanings are linked to longer lives in dogs. In records of about 2.37 million dogs at 787 US hospitals, dogs that reached age 2 had a lower risk of death the more often they'd had their teeth scaled.11 That's an association from clinic records, and owners who pay for regular dental care may differ in other ways too.

Ask your vet how often your dog's teeth need a professional cleaning, and whether home brushing would help.

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

How often should an older dog see the vet?

About every six months. Texas A&M's veterinary college advises wellness exams every six months once pets reach their senior years, because regular exams help catch and treat illness early.12 It counts average-sized dogs as senior at 7 and large breeds at 5. The 2023 AAHA senior care guidelines set out a systematic approach to senior care, aimed at keeping quality of life high.15

Early detection is the point. Pets can't tell us when something is wrong, and slow changes in weight, thirst, appetite or energy can be the first sign of disease.12 If you notice any of those, see your vet rather than reaching for a supplement.

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

What should an older dog eat?

An older dog should eat a complete and balanced diet, in an amount that keeps them lean. On a US label, "complete and balanced" means the food is meant to be the dog's only diet and meets an AAFCO nutrient profile or passed an AAFCO feeding trial. Treats and supplements usually aren't complete.13

AAFCO has profiles for growth and reproduction and for adult maintenance, but none for seniors, so a "senior" label doesn't mean a separate standard.13 No food has been shown to extend a dog's life on its own. The controlled evidence is about how much a dog eats, not a special ingredient.6 Our diet and dog longevity guide goes further.

Do NAD+ supplements like NR and NMN work for dogs?

NAD+ precursors such as nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN) haven't been shown to slow aging or extend life in dogs. We found no trial of NR or NMN on its own in healthy aging dogs. The dog data so far are mostly safety work: in a 14-day study, beagles given NMN had only mild increases in creatinine and uric acid.16

The best-known dog trial tested a combination. In 2024, NC State researchers gave 70 dogs with mild to moderate cognitive impairment a proprietary NAD+ precursor plus a senolytic, at a low amount, a full amount or a placebo. At three months, owner-rated thinking improved most in the full-amount group, but in-clinic thinking tests and activity monitors showed no difference between groups.9

The product's ingredients weren't named, so the result can't be applied to any other supplement. Our NAD+ for dogs and NMN for dogs guides cover the details.

The best-supported step for a longer dog life isn't a pill. In one study, lean Labradors lived a median 1.8 years longer.

Spotted gray dog beside a Hollywood Elixir box held in a person's hand

Do omega-3s help older dogs?

Omega-3 fatty acids from fish oil have the best supplement evidence in dogs, but for arthritis pain, not for lifespan. A 2022 review of 72 trials in dogs and cats with osteoarthritis found clear pain-relief evidence for omega-3-enriched diets and omega-3 supplements.17 In one 90-day trial of 38 dogs with osteoarthritis, a food with added fish oil improved how much weight dogs put on their worst leg.18

We found no study showing that omega-3s extend a dog's life. If your dog is stiff or limping, see your vet first, because pain needs a diagnosis, and ask what amount of fish oil would suit them.

Golden retriever nuzzling a man holding a Hollywood Elixir box beside a food bowl

Do antioxidants slow aging in dogs?

Antioxidants have helped older dogs' thinking in lab studies, but they haven't been shown to slow aging or extend life. In a two-year study of aged beagles, a food fortified with antioxidants improved some learning tasks, and it worked best combined with mental and social enrichment.19 The fortified food made no difference in young dogs.

That study tested a whole fortified diet in lab beagles, not an antioxidant pill in pet dogs. We found no study showing that an antioxidant supplement extends a dog's life.

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

Do senolytics like fisetin and quercetin work in dogs?

Senolytics such as fisetin and quercetin haven't been shown to work in dogs. Senolytics are compounds meant to clear senescent cells, worn-out cells that stop dividing but linger in tissues. In mice, fisetin given late in life reduced signs of senescence and extended median and maximum lifespan.20

We found no published trial of fisetin or quercetin on their own in pet dogs. The only dog trial of a senolytic we found is the 70-dog combination study above, and its senolytic wasn't named.9 Read our senolytics guide before buying a product built on mouse results.

Is berberine a natural metformin for dogs?

Berberine, a plant compound often sold as a "natural metformin", hasn't been tested as one in pet dogs. The dog studies we found are lab studies in beagles and in cells. In one, six beagles given berberine for seven days handled the diabetes drug glipizide differently: its blood levels rose and it stayed in the body longer.8

That interaction is the real warning. If your dog takes any medication, and especially a diabetes drug, don't add berberine without your vet. A diabetic dog needs the treatment your vet prescribes, not a natural substitute.

Is there a natural form of rapamycin?

Rapamycin is itself a natural product, made by bacteria, but it's sold only as a prescription drug.21 There's no supplement version. Products sold as "natural rapamycin" or "mTOR support" contain other compounds, and we found no dog trials behind them.

Rapamycin's own dog evidence is still coming. TRIAD is testing it, and a vet can prescribe it off-label today.35 Our rapamycin for dogs guide covers the trials, side effects and cost.

Woman holding a Hollywood Elixir box beside a dapple dachshund and green food bowl on a sofa

Can my dog take supplements alongside a longevity drug?

Nobody has tested it. We found no published study of supplements combined with LOY-002, rapamycin or metformin in dogs, so nobody can say which combinations are safe or useful. Loyal hasn't published interaction data for LOY-002, and it says guidance for dogs with other conditions will come from its studies.1

Interactions are possible: berberine changed how a diabetes drug behaved in beagles.8 So tell your vet everything your dog takes, including supplements, chews and food toppers, and bring the labels. If your dog is in a drug trial, ask the study team before adding anything.

Woman cuddling a brown-and-white spaniel while holding a Hollywood Elixir box

How can I judge a product sold as a natural alternative?

A product sold as a natural alternative to a longevity drug should be judged by what it can show, not what it promises. In the US there's no "dietary supplement" category for animal products: the FDA treats them as foods or as new animal drugs, depending on their intended use.22 A product that claims to treat or prevent disease is making a drug claim.

Red flags:

  • Claims to work "like LOY-002" or "like rapamycin", or to add years to your dog's life
  • Mouse or human studies presented as proof in dogs
  • A "proprietary blend" that hides how much of each ingredient you get
  • No company address, lot number or expiry date

A good label shows every active ingredient with its amount per serving, a serving guide by weight, the maker's contact details and a lot number. A mark such as the NASC Quality Seal means the company passed an independent quality audit and random label testing, not that the product works.23

Where daily nutrition fits

We make Hollywood Elixir, a daily nutrition powder for adult and senior dogs and cats. It's built around nicotinamide riboside, an NAD+ precursor, with CoQ10, glutathione and 14 more actives, and every active amount is printed on the label. It's a supplement, not a longevity drug substitute: it isn't designed to do what LOY-002 or rapamycin is being tested for, and it hasn't been tested for lifespan. Its case is practical: one daily sachet stirred into food (half for pets under 7 lb, two for dogs over 30 lb) instead of a cupboard of separate supplements. If your dog takes a prescription drug, check with your vet before adding it or any other supplement. See the full formula and serving guide.

Nobody has tested supplements alongside a longevity drug. Tell your vet everything your dog takes.

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+ precursor: a compound the body can turn into NAD+, a molecule cells use to make energy; NR and NMN are examples.

Senolytic: a compound meant to clear senescent cells, which stop dividing but linger in tissues.

Berberine: a plant compound sold as a supplement and often marketed as a "natural metformin".

Off-label (extra-label): a vet's use of an approved drug in a way its label doesn't list.

Canine cognitive dysfunction: an age-related decline in a dog's thinking and behavior, similar to dementia.

Median lifespan: the age by which half the dogs in a group have died.

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
• Dog Longevity Drugs
• Rapamycin for Dogs

References

Sources and further detail

  1. Loyal, *For veterinarians* (program status, eligibility, confidentiality of active ingredients, pre-existing conditions; checked November 2026)
  2. dvm360 (13 Jan 2026), Lifespan extension drug in development for senior dogs reaches a new milestone
  3. Tufts Cummings School of Veterinary Medicine, *Dog Aging Project: test of rapamycin in aging dogs (TRIAD)*
  4. Miceli DD, Vidal PN, Batter MFC et al. *Open Veterinary Journal* (2018). Metformin reduces insulin resistance and the tendency toward hyperglycaemia and dyslipidaemia in dogs with hyperadrenocorticism
  5. FDA, *The ins and outs of extra-label drug use in animals: a resource for veterinarians*
  6. Kealy RD, Lawler DF, Ballam JM et al. *JAVMA* (2002). Effects of diet restriction on life span and age-related changes in dogs
  7. Lawler DF, Larson BT, Ballam JM et al. *British Journal of Nutrition* (2008). Diet restriction and aging in the dog: major observations over two decades
  8. Qi H, Wang W, Zhang X, Shang B. *International Journal of Analytical Chemistry* (2025). Pharmacokinetics study of herb-drug interaction of berberine and glipizide in beagle dogs using UPLC-MS/MS
  9. Simon KE, Russell K, Mondino A et al. *Scientific Reports* (2024). A randomized, controlled clinical trial demonstrates improved owner-assessed cognitive function in senior dogs receiving a senolytic and NAD+ precursor combination
  10. Bray EE, Raichlen DA, Forsyth KK et al. *GeroScience* (2023). Associations between physical activity and cognitive dysfunction in older companion dogs: results from the Dog Aging Project
  11. Urfer SR, Wang M, Yang M, Lund EM, Lefebvre SL. *Journal of the American Animal Hospital Association* (2019). Risk factors associated with lifespan in pet dogs evaluated in primary care veterinary hospitals
  12. Texas A&M College of Veterinary Medicine & Biomedical Sciences, *Pet Talk: Pet wellness* (16 Oct 2008)
  13. FDA, *Complete and balanced pet food* (content current as of 28 Feb 2020)
  14. Salt C, Morris PJ, Wilson D, Lund EM, German AJ. *Journal of Veterinary Internal Medicine* (2019). Association between life span and body condition in neutered client-owned dogs
  15. Dhaliwal R, Boynton E, Carrera-Justiz S et al. *Journal of the American Animal Hospital Association* (2023). 2023 AAHA senior care guidelines for dogs and cats
  16. You Y, Gao Y, Wang H et al. *Frontiers in Pharmacology* (2020). Subacute toxicity study of nicotinamide mononucleotide via oral administration
  17. Barbeau-Grégoire M, Otis C, Cournoyer A et al. *International Journal of Molecular Sciences* (2022). A 2022 systematic review and meta-analysis of enriched therapeutic diets and nutraceuticals in canine and feline osteoarthritis
  18. Roush JK, Cross AR, Renberg WC et al. *JAVMA* (2010). Evaluation of the effects of dietary supplementation with fish oil omega-3 fatty acids on weight bearing in dogs with osteoarthritis
  19. Milgram NW, Head E, Zicker SC et al. *Neurobiology of Aging* (2005). Learning ability in aged beagle dogs is preserved by behavioral enrichment and dietary fortification: a two-year longitudinal study
  20. Yousefzadeh MJ, Zhu Y, McGowan SJ et al. *EBioMedicine* (2018). Fisetin is a senotherapeutic that extends health and lifespan
  21. Yoo YJ, Kim H, Park SR, Yoon YJ. *Journal of Industrial Microbiology & Biotechnology* (2017). An overview of rapamycin: from discovery to future perspectives
  22. FDA, *Animal foods & feeds* (content current as of 2 Nov 2026)
  23. National Animal Supplement Council, *NASC Quality Seal*

FAQ

What can I give my dog for longevity?

No pill or supplement has been shown to extend a dog's life. The best evidence is for keeping your dog lean, along with exercise, dental care and regular vet checks. Talk to your vet before adding any supplement.

What are some good anti-aging supplements for dogs?

None has been shown to slow aging in dogs. Omega-3s have good evidence for arthritis pain, and one 70-dog trial found owner-rated thinking improved on an NAD+ precursor and senolytic combination. If you buy one, choose a label that prints every ingredient amount.

How can I reverse aging in my dog?

Nothing has been shown to reverse aging in dogs. You can protect their health as they age by keeping them lean and active and keeping up with vet and dental checks.

What can I give my dog while waiting for LOY-002?

Start with the basics that have evidence: a lean body weight, daily activity, dental care and checkups about every six months. If you add a supplement, choose one with every amount on the label and tell your vet.

Is calorie restriction good for dogs?

In a lifelong study of 48 Labradors, dogs fed 25% less than their littermates lived a median of 1.8 years longer. In practice that means keeping a dog lean, not underfeeding. Ask your vet for a target weight before changing portions.

Is fish oil good for senior dogs?

Fish oil omega-3s have good evidence for easing arthritis pain in dogs, but there's no evidence they extend life. Ask your vet about the amount, especially if your dog has other conditions or takes medication.

Is NMN or NR better for dogs?

Neither has been shown to slow aging in dogs, so there's no evidence to rank them. The dog data are mostly safety studies, plus one combination trial whose ingredients weren't named.

Can supplements replace insulin for a diabetic dog?

No. A dog with diabetes needs the treatment your vet prescribes. Supplements such as berberine can change how some drugs work, so don't add anything without your vet.

Are natural rapamycin supplements safe for dogs?

We found no dog trials of products sold as natural rapamycin or mTOR support, so their safety and benefit in dogs are unknown. Rapamycin itself is available only by prescription.

What anti-aging medication for dogs will be available in 2026?

None. As of November 2026, no drug is approved to extend a dog's life. LOY-002 is the closest, and the FDA's review of its manufacturing section is expected in 2027.

Dalmatian looking toward a Hollywood Elixir box held in a person's hand

Discover LPL-01: How This Fits Into a Larger Canine Longevity System

Aging in dogs is not driven by a single pathway. It’s the result of interacting biological systems—energy metabolism, oxidative stress, immune signaling, and structural integrity—changing over time.

This article explores one piece of that puzzle. If you want to understand how these pieces connect—and what actually moves the needle—you need to zoom out.

Start with the underlying science: