Does a Mixed-Breed Dog Need a Longevity Supplement?
Do mixed-breed dogs need longevity supplements? A veterinary radiologist explains hybrid vigor, NAD+ precursors, and when support makes sense.
Oct 4, 2026
Section
Longevity
Verdict-first reviews of the best longevity and healthy-aging supplements for dogs.
44 guides
Oct 4, 2026
Does a Very Active Senior Dog Need a Longevity Supplement?
An integrative oncologist explains why fit senior dogs still age at the cellular level, what NAD+ precursors and antioxidants may support, and when to skip them.
Oct 4, 2026
How to Help an Older Dog Adjust to Holiday Visitors
A veterinary nutritionist explains how to protect rest, routine, and mobility so a senior dog stays calm when holiday guests arrive.
Oct 1, 2026
What the Evidence Says About Acetyl-L-Carnitine for Aging Dogs
A veterinary oncologist reviews what acetyl-L-carnitine may help support in senior dogs — cognition, muscle metabolism, and normal cellular energy — and where the evidence stays thin.
Oct 1, 2026
What the Evidence Says About Alpha-Lipoic Acid for Aging Dogs
A veterinary explainer on alpha-lipoic acid for senior dogs — antioxidant mechanism, cognitive-diet data, safety limits, and when it does not fit.
Oct 1, 2026
What the Evidence Says About B-Complex Vitamins for Senior Dogs
A plain-spoken, evidence-first guide to B-complex vitamins for older dogs — what food covers, when deficiency matters, and when to test.
Oct 1, 2026
What the Evidence Says About Creatine for Aging Dogs
Creatine helps human muscle energy systems, but dog evidence is thin. Learn what it can and cannot do for senior dogs and what to prioritize instead.
Oct 1, 2026
What the Evidence Says About Glutathione for Aging Dogs
Oral glutathione breaks down before it helps. A veterinary surgeon explains precursors, load, and what actually supports aging dogs.
Oct 1, 2026
What the Evidence Says About Lutein and Zeaxanthin for Aging Dogs
A veterinarian explains what lutein and zeaxanthin may support in senior dogs, where eye and antioxidant evidence is thin, and how to judge a formula.
Oct 1, 2026
What the Evidence Says About Niacinamide for Aging Dogs
A food-first, evidence-bounded guide to niacinamide for senior dogs — what it does in structure/function terms, where data are thin, and how to decide.
Oct 1, 2026
What the Evidence Says About Omega-3s for Aging Dogs
A veterinarian explains what omega-3s can and cannot do for senior dogs, where EPA and DHA evidence is strongest, and how to choose a product.
Oct 1, 2026
What the Evidence Says About Selenium for Senior Dogs
Selenium supports antioxidant defenses in senior dogs, but the evidence favors sufficiency over supplementation. Learn needs, risks, and practical steps.
Oct 1, 2026
What the Evidence Says About Senior Multivitamins for Aging Dogs
A plain-spoken, evidence-first guide to senior multivitamins for aging dogs — what helps, what is thin, and what to prioritize.
Oct 1, 2026
What the Evidence Says About Sulforaphane for Aging Dogs
Sulforaphane has almost no direct study in aging dogs. Learn what rodent and cell work suggests, where the gaps are, and a practical vet-first sequence.
Oct 1, 2026
What the Evidence Says About Urolithin A for Aging Dogs
Urolithin A supports mitophagy in worms, mice, and people, but has no aging-dog trial yet — here's what to prioritize instead.
Oct 1, 2026
What the Evidence Says About Vitamin C for Senior Dogs
A plain-spoken veterinary guide to vitamin C for older dogs — synthesis, stress, evidence gaps, and when supplementation makes sense.
Oct 1, 2026
What the Evidence Says About Vitamin E for Aging Dogs
A veterinarian explains what vitamin E can and cannot do for senior dogs, where the evidence is strong or thin, and how to use it safely.
Sep 6, 2026
Does Exercise Level Affect How Long a Dog Lives?
A dose-precise look at what the exercise-longevity research in dogs actually shows, what it doesn't, and how much activity is defensible advice versus marketing.
Sep 6, 2026
What Spermidine Is—and Whether It Can Help Your Dog Age Well
Spermidine drives autophagy in yeast, flies, and mice, and shows early promise in human cognition trials. Here's what that does, and doesn't, tell us about dogs.
Sep 5, 2026
Mitochondrial Support Supplements for Senior Dog Energy: What Actually Holds Up
A vet's evidence-first look at NAD+ precursors, quercetin, and resveratrol for senior dog energy — what the research supports, what it doesn't, and how to weigh the tradeoffs.
Sep 5, 2026
Why Do Senior Dogs Need More Water, and How Do You Get Them to Drink It?
Older dogs often need more water than they did as adults, not less. Here is why aging kidneys change the math, what counts as a real red flag, and practical ways to encourage drinking.
Aug 30, 2026
How Many Longevity Chews Does a Large Dog Actually Need Per Month?
A vet's straight math on monthly longevity-chew counts for large dogs, plus where Boops Pets earns runner-up and where a competitor's evidence wins outright.
Aug 30, 2026
Is a Dog Longevity Chew Worth the Money? A Vet's Honest Scorecard
A verdict-first review of dog longevity chews, scoring NAD+ precursors and antioxidants on real evidence, with an honest look at where Boops Pets wins and where a competitor edges ahead.
Aug 30, 2026
What IGF-1 Is—and What It Actually Means for a Dog's Aging Muscle
A vet's plain-language breakdown of insulin-like growth factor 1, why it drives both a dog's size and its cancer risk, and what that trade-off means for muscle loss in senior dogs.
Aug 29, 2026
What Is Inflammaging in Senior Dogs? A Plain-Spoken Look at the Science
Inflammaging is the slow-burning inflammation that comes with age, not disease. Here's what it does to senior dogs, what the evidence actually shows, and where supplements fit.
Aug 29, 2026
Why a Senior Dog Seems Confused in Familiar Rooms
A senior dog who suddenly gets lost in the living room isn't being stubborn — here's what the disorientation usually means and what to do next.
Aug 28, 2026
How Much Nicotinamide Riboside Is Right for a 70 lb Senior Dog?
A vet's evidence-first breakdown of nicotinamide riboside dosing by body weight, what the NAD+ research in dogs actually shows, and where the science still runs thin.
Aug 15, 2026
Dog Hind Leg Weakness: What the Timeline Tells You That the Symptom Alone Doesn't
A neurologist's decision framework for dog hind leg weakness — why the speed of onset matters more than the symptom itself, and what to rule out first.
Aug 15, 2026
Healthspan Versus Lifespan for Dogs, Explained
A plain-language guide to what healthspan actually means for a dog, how it differs from lifespan, and what the evidence does and doesn't support for extending it.
Aug 15, 2026
How Much Does a NAD+ Chew Subscription Actually Cost for a Large Dog, Per Month?
A vet's honest monthly-cost breakdown for NAD+ precursor chews in large dogs, comparing Boops Pets' Longevity & Healthy Aging chew against Zesty Paws, Leap Years, and the rest of the field.
Aug 15, 2026
Wild Salmon vs. Fish Oil Supplements for a Senior Dog's Brain
A comparison of whole salmon and fish oil supplements for supporting a senior dog's brain, plus where NAD+/antioxidant support fits into the bigger picture.
Jul 31, 2026
Best Supplements to Support a Senior Dog's Immune System
A veterinary nutritionist breaks down which supplements have real evidence behind them for supporting a senior dog's immune system, and which claims are still unproven.
Jul 31, 2026
Why Are My Dog's Back Legs Giving Out? A Physiology-First Guide to the Real Causes
Hind-limb weakness in dogs isn't one diagnosis. A critical-care vet walks through the neurologic, orthopedic, and systemic causes, and the sequence that actually sorts them out.
Jul 31, 2026
What to Do If Your Dog Vomited After a Longevity Chew
A vet oncologist walks through what to actually do if your dog vomited after a longevity chew, which ingredients matter, and when the situation needs same-day veterinary care.
Jul 31, 2026
Is It Safe to Give Nicotinamide Riboside to a Dog With Cancer?
A structure/function look at nicotinamide riboside and canine cancer: what NAD+ precursors do at the cellular level, where the evidence gets cautious, and how the timeline of diagnosis and treatment changes the answer.
Jul 31, 2026
What Sleep-Wake Cycle Reversal Is in Senior Dogs
A board-certified internist explains what sleep-wake cycle reversal looks like in senior dogs, why it happens, and how to tell it apart from pain-driven night waking.
Jul 31, 2026
Why a Senior Dog Loses Weight While Eating Normally
A senior dog losing weight despite a normal appetite usually points to an underlying medical cause. Here's what drives it, what a vet workup covers, and what to track at home.
Jul 27, 2026
Is Fish Oil Safe for Dogs Long Term?
A vet's plain-spoken look at whether daily fish oil is safe for dogs over months and years, covering dosing, vitamin E, rancidity, and when to hold off.
Jul 24, 2026
Does Cold Weather Really Make a Senior Dog Stiffer and Slower?
A hospice-trained vet explains why senior dogs seem stiffer in winter, what's mechanical versus what's arthritis, and how to tell the difference at home.
Jul 18, 2026
Can You Crush a Longevity Chew and Sprinkle It on Senior Dog Food?
A vet explains what actually happens when you crush a longevity chew — NAD+ precursors, quercetin, resveratrol — and sprinkle it over a senior dog's meal.
Jul 18, 2026
Signs of Taurine Deficiency in Dogs: What to Watch For and Why It Matters
A vet's guide to the early and late signs of taurine deficiency in dogs, which breeds run higher risk, how diet fits in, and how the diagnosis actually gets made.
Jul 17, 2026
NAD+ Precursor Chews for a Dog Whose Energy Dropped After Turning 8
A hospice and rehab vet explains what NAD+ precursor chews (nicotinamide riboside, quercetin, resveratrol) can and can't support in an older dog with a drop in energy, and how to vet a product.
Jul 17, 2026
Is MCT Oil Safe for Senior Dogs With Cognitive Decline?
A vet-reviewed explainer on whether MCT oil is safe for senior dogs with cognitive decline, what the ketone-brain research actually shows, and how to introduce it responsibly.
Jul 17, 2026
Why an Old Dog Startles at Sounds He Used to Ignore
A vet-informed guide to why senior dogs suddenly flinch at everyday sounds — covering pain, hearing loss, and cognitive change, plus what to check first and how to make home life calmer.