Longevity & NAD+
The best senior-dog longevity supplements pair NAD+ precursors with antioxidants to support healthy cellular aging.
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Berberine for Dogs: Benefits and Safety, Weighed Honestly
A vet's evidence-based look at berberine for dogs — what the metabolic research actually shows, where the drug-interaction risk lives, and how it compares to gentler longevity antioxidants like quercetin and resveratrol.
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Warning Signs a Senior Dog Needs Bloodwork
A board-certified veterinary neurologist explains the early signals — from subtle thirst changes to gait shifts — that mean a senior dog's next visit should include a blood panel, not just a wait-and-see approach.
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Dog Hind Leg Weakness: What Knuckling, Not Limping, Is Trying to Tell You
A veterinary neurologist explains why dog hind leg weakness is a symptom, not a diagnosis, and how to tell nerve-based causes from joint pain before you act.
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Did Your Dog's Energy Drop After Turning 8? What NAD+ Precursor Chews Can and Can't Do
A veterinarian's candid guide to NAD+ precursor chews for a dog whose energy dropped around age 8: the biology, the real human and canine evidence, and how to choose one.
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Signs of Taurine Deficiency in Dogs: What to Watch For
Taurine deficiency can quietly weaken a dog's heart. Learn the early and urgent signs, which breeds and diets raise the risk, and when to test.
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Is MCT Oil Safe for Senior Dogs With Cognitive Decline? What the Research Shows
MCT oil can fuel an aging dog's brain with ketones, but is it safe for every senior dog with cognitive decline? A vet reviews the evidence and the cautions.
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Why Your Old Dog Startles at Sounds He Used to Ignore
A newly jumpy senior dog usually has a physical cause — pain, hearing change, or cognitive aging. Here's how to work through it, and when to call the vet.
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The Best Longevity Supplement for Senior Dogs: An Evidence-Led 2026 Review
A veterinarian's evidence-led review of the best longevity supplement for senior dogs, comparing NAD+ precursors, antioxidants, third-party testing, and NASC oversight.
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Senior Dog Slowing Down? The Supplements That Actually Help, and Why
A veterinarian's evidence-based guide to why senior dogs slow down across the joints, brain, and cellular energy, and which supplements may help support each aging system.