Label Literacy

A vet explains dog size categories by weight and why size predicts senior age, joint load, and longevity better than years alone.

A vet explains dog longevity biomarkers — NAD+, inflammation, and joint turnover markers — and how to read a result without overreacting.

A pilot longevity study in dogs tests feasibility and safety signals, not lifespan — learn how to read sample size, controls, and endpoints.

Open-label means everyone knows what your dog is getting. Learn how that shapes bias, safety signals, and how to read longevity claims for quality of life.

A TCVM veterinarian explains what liver detox supplements can and cannot do for dogs, which ingredients have support, and when to skip the cleanse.

Heat, humidity, light, and air degrade potency and shorten shelf life — here's how to store dog supplements to protect function.

What organic and natural actually mean on dog supplement labels, and how to judge support claims without overpaying for words.

A veterinarian's script for vetting a dog supplement by email or chat — lot numbers, COAs, plant sourcing, and red-flag answers.

A veterinary guide to proprietary blends, flavor loopholes, and Guaranteed Analysis labels — and when missing milligrams should stop you.

A veterinarian explains when a healthy dog on complete food can skip supplements, using growth, thyroid, and adrenal signals to guide the call.

A critical-care veterinarian explains what the USDA Organic seal actually verifies on dog supplements, what it doesn't prove, and how to use it.

A veterinarian's checklist for vetting a dog supplement subscription — labels, testing, dosing, interactions, and auto-ship terms.

A veterinary neurologist walks through the real FDA rules for dog supplements, what NASC and AAFCO oversight actually covers, and why claims touching the brain or seizures deserve the most scrutiny.

A veterinary rehab specialist breaks down what heavy-metal lab testing shows about lead contamination risk in dog treats and chews, and how to vet a bag before it becomes a daily habit.

A veterinarian's evidence-first checklist for reading a dog supplement's packaging — what the guaranteed analysis has to prove and which claims should make you put the bottle back down.

A veterinarian explains why a GMP-certified glucosamine or turmeric claim on a dog chew label says nothing about the plant that actually made the finished product.

The NASC Quality Seal and an independent Certificate of Analysis answer different questions. Here's what each one verifies, what it doesn't, and which combination actually protects your dog.