5 Things Every Owner of a Senior Dog or Cat Should Know About NAD+
Why veterinarians and longevity researchers are paying attention to one molecule — and what it means for the older pet sleeping next to you right now.
By the PetVille Editorial Team · Reviewed for accuracy
If your dog or cat is past their middle years, you've probably noticed the small things. The slower mornings. Less interest in the toys they used to love. Sleeping a little more, playing a little less.
It's easy to write it off as "just getting old." But a growing body of research points to something happening at the cellular level — and to one molecule in particular that sits at the center of how every cell makes energy: NAD+.
Here are five things worth understanding before your pet's next birthday.
1. NAD+ is the fuel behind your pet's energy — and it fades with age
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every living cell. Think of it as the spark plug for energy production: it helps cells turn food into the fuel they run on, and supports the everyday repair work that keeps the body functioning.
Research across mammals shows the same pattern — NAD+ levels decline steadily with age. Less available NAD+ can mean cells have less of the support they rely on for normal energy and maintenance. In pets, this decline tends to line up with the years when owners start noticing their companion slowing down.
2. The "slowing down" you see often starts before you see it
By the time a pet visibly slows on walks or loses interest in play, the underlying changes have usually been building quietly for a while. That's the frustrating part for owners: the window where support matters most is often the window where everything still looks "fine."
- Less enthusiasm for walks or play
- Sleeping more, engaging less
- Slower to rise after resting
- A duller coat or lower overall vitality
None of these are reasons to panic. But they are reasons to start thinking about daily support sooner rather than later — while there's the most to maintain.
3. You can support NAD+ levels through daily nutrition
This is the part most owners don't realize. The body builds NAD+ from precursors and supporting nutrients you can provide through diet. That's exactly what PetVille was formulated to do.
Each daily vial delivers a blend built around NAD+ support and whole-body vitality:
- Niacinamide (B3) — a direct precursor the body uses to make NAD+
- Taurine — an amino acid essential for heart and cellular health, especially in cats
- Fish oil + lutein — to support coat, eyes, and everyday wellbeing
- A full B-complex, plus vitamins A, C, D3 & E — for daily nutritional support
4. It only works if your pet will actually take it
The best formula in the world is useless if your pet turns their nose up at it. Anyone who's tried to give a fussy cat a pill knows the struggle.
PetVille comes as a liquid in single-dose vials — no pills, no powder clouds, no wrestling. Pour it over wet or dry food, or give it directly. It's portioned by body weight, so there's no guesswork, and one box lasts most pets several weeks.
5. The best time to start is now — not at the next vet visit
Here's the honest truth: you can't add years to the calendar. But supporting your pet's vitality is a daily habit, and the value of a daily habit comes from consistency over time — which means the sooner it becomes part of their routine, the more of their good years you're supporting.
That's why so many owners don't wait for something to be "wrong." They start while their companion is still themselves — and make the most of the time they have together.