Signs of Frailty in Aging Dogs: What to Watch For and When to Act
A veterinarian's guide to recognizing early frailty signs in senior dogs — from subtle mobility changes to appetite shifts — and how to bring them to a vet visit.
Sep 6, 2026
Section
Healthy aging
Practical, evidence-first guides on senior-dog care and healthy aging, mobility and quality of life, preventive care for older dogs — we cover the whole category and name trade-offs honestly.
22 guides
Sep 6, 2026
What Factors Actually Determine How Long a Dog Lives
A vet's look at the genetics, size, weight, and daily habits that shape canine lifespan, and what families can realistically influence.
Aug 31, 2026
Can Older Dogs Safely Take NAD+ Long Term?
A vet's look at what's actually known about giving senior dogs NAD+ precursors like nicotinamide riboside month after month, and where the evidence still runs thin.
Aug 31, 2026
Is Rapamycin Safe for Dogs as an Anti-Aging Treatment?
A vet's honest look at what the rapamycin-for-dogs trials actually show — safety data, cardiac findings, dosing, and where the open questions still are.
Aug 30, 2026
How to Help a Senior Dog Who Has Lost Interest in Food
A vet's guide to why older dogs go off their food, what to try at home first, and when a dropped appetite means it's time to call the clinic.
Aug 30, 2026
How to Help an Aging Dog Climb Stairs Safely
A vet's practical, evidence-based guide to helping an aging dog climb stairs safely — what to watch for, what actually helps, and when to call your vet.
Aug 29, 2026
Why a Senior Dog Stares at Walls or Blank Spaces
A senior dog fixed on a bare wall is not being odd for the sake of it. Here is what disorientation actually looks like, when it points to cognitive decline, and the conversation to have with your veterinarian.
Aug 28, 2026
How Long Before Quercetin Has an Effect in Dogs?
A vet explains what quercetin actually does in a dog's body, why "effect" is the wrong frame for a fast-clearing flavonoid, and what timeline to watch for instead.
Aug 28, 2026
How Many mg of Resveratrol Per Pound of Dog? What the Evidence Actually Supports
There is no agreed-upon resveratrol dose per pound of dog. Here's what the veterinary literature does and doesn't tell us, and how to weigh a supplement anyway.
Aug 27, 2026
Does Nicotinamide Riboside Actually Raise NAD+ Levels in Dogs?
A vet's evidence-based look at whether nicotinamide riboside raises NAD+ in dogs, what the human and canine data actually show, and how to weigh it against other longevity ingredients.
Aug 27, 2026
Is SAM-e Safe for Dogs Long Term?
A vet's honest read on giving SAM-e to a senior dog month after month — what the safety data actually shows, and where I still ask questions.
Aug 27, 2026
L-Carnitine for Muscle Loss in Aging Dogs: What the Evidence Actually Supports
A vet's evidence-bounded look at L-carnitine for age-related muscle loss in dogs, including what the Labrador retriever research found and where it falls short.
Aug 27, 2026
Signs a Nicotinamide Riboside Supplement Is Working in a Dog
A vet's guide to the real, observable changes owners can watch for after starting a nicotinamide riboside supplement in an older dog.
Aug 25, 2026
How Long Does CoQ10 Take to Work in Dogs?
A vet explains what the pharmacokinetic data actually shows about CoQ10 timing in dogs, why plasma levels and clinical benefit are two different clocks, and what to watch for at home.
Aug 25, 2026
Omega-3 for Aging Dog Brain Health: What Actually Helps
A vets guide to omega-3 fatty acids and aging dog brain health, covering the DHA evidence, realistic expectations, and what to ask your veterinarian.
Aug 25, 2026
Why an Old Dog Seems to Lose His Sense of Smell
A veterinarian explains what's actually happening when an aging dog stops tracking scent the way he used to, and when the change is worth a vet visit.
Aug 24, 2026
Why a Dog Seems to Forget Cues He Used to Know Well
A veterinarian explains why senior dogs seem to "forget" commands they've known for years, what's normal aging versus a sign worth flagging, and how to bring it up at your next visit.
Aug 23, 2026
Do Small Dogs Reach Senior Needs Earlier Than Large Breeds? A Vet's Answer
A vet explains why small-breed dogs are labeled "senior" later by the calendar but why large and giant breeds actually need senior-level care sooner, and what to watch for at home either way.
Aug 22, 2026
Is Vitamin B12 the Answer for an Aging Dog Who's Gone Picky About Food?
A vet's honest look at whether vitamin B12 can help an older dog's fading appetite, when a deficiency is the real culprit, and what to bring to your vet visit.
Aug 21, 2026
How to Compare Dosage Guidance Across Dog Longevity Supplement Brands
A vet's practical framework for reading longevity supplement labels — what dose language actually means, which claims deserve scrutiny, and how to talk about it with your veterinarian.
Aug 20, 2026
Dog Mental Sharpness Supplements: What Actually Helps an Aging Brain
A veterinarian explains which ingredients in dog mental sharpness supplements have real evidence behind them, and how to weigh that evidence against what a senior dog's daily life is telling you.
Aug 20, 2026
NAD+ for a Dog's Brain: What the Evidence Actually Shows
Dr. Monica Tarantino explains what NAD+ is, why it declines with age, and what the current dog research does and doesn't support for cognitive changes in senior dogs.