He used to race you to the door. Remember the skid on the hallway floor, the tail going before your key was even out of the lock?

Now you come home and he lifts his eyes from the couch. Maybe he thumps his tail once. Then he watches you cross the room, a spectator in his own home.

You tell yourself it is just age. Or that he is getting lazy. But that is not the dog you know. The dog you know used to bring you the lead before you asked.

Here is the mistake that is so easy to make with a senior dog: we only look at the outside. The bed. The food. The chews. Everything we can see, buy and put down for him. But what about the energy being made on the inside?

By noon, he is done. A morning walk, a little breakfast, and then the day seems to run out of battery. So you adjust. You shorten the loop. You move the bowl closer. You stop asking him to come along.

• He sleeps more than he used to, and the naps come earlier in the day
• The door greeting is now a lifted head and one tail thump
• He is “done” by noon, even on an easy day
• The walk turns for home sooner than it used to
• He watches the family play instead of joining in
• He takes his time when he sees the lead come out
• A softer bed, fancier food and a new chew changed very little

Read that list again. These are not seven unrelated signs. They have one thing in common: every step to the door, every alert look and every reason to get up asks his body for energy. If any of these changes is sudden, severe or brand new, call your veterinarian first. A supplement is not a diagnosis.

And where does energy actually get made? Not on the outside. It is made at the cell level, inside tiny structures called mitochondria. NAD+ is a coenzyme his cells use in energy metabolism, and scientists are exploring how it relates to aging in dogs.

That is the shift: stop only looking at the outside, and start asking what his cells have to work with.

You did everything a loving owner does. You bought the orthopedic bed. You moved him up to the fancy senior food. You tried the chew everyone recommends, and it sat in the pile. And still, by noon, he was running low.

So you started to wonder what you were doing wrong.

Nothing. A bed is made for comfort. Food is made to keep him fed. A chew is made for chewing. Each one is a fine thing to give him, but none of them was ever meant to do the job we kept asking of them: give him the get-up-and-go to meet you at the door.

Comfort and energy are two different things, and you gave him plenty of the first.

You were never wrong to try. You were just working on the outside of the problem.

Which brings us to Pawprint Protocol, a liquid made with NMN and NAD+ to give his cells more of what they use to make energy.

NMN and NAD+ are paired with resveratrol and CoQ10 in one daily liquid. It is a small, daily way to look after the part of him you cannot see.

It goes on his breakfast, squeezed from the included dropper straight onto the food he already eats.

• NMN + NAD+: cellular energy.
• Resveratrol: antioxidant support.
• CoQ10: nutritional support for his muscles and stamina.
• Liquid: no pills to hide in cheese. Just drops on the food he already eats.

Droppers go by weight, daily with food: 1 for dogs under 22 lb, 2 for 22–55 lb, 3 for 55–88 lb and 4 for dogs over 88 lb. A 62-pound senior Lab, for example, gets three droppers in his breakfast. That is it.

Follow the directions on your bottle, then watch how fast the bowl is empty.

There is no calendar to watch here and no guaranteed timetable. Every dog sets his own pace.

What you can do is simply notice. A few weeks into the routine, does his day start to look a little more like him? These are the ordinary moments to watch for. Not a miracle. Just your dog, showing up again.

You pick up the lead and hear the click of nails in the hallway. He is already there on his feet, tail swinging, looking up at you and telling you all about it, the way he used to. The greeting you thought was gone may only have been waiting for a little more energy to bring it out.

Not a marathon. Just the loop you both know: the hedge he always sniffs, the corner where he looks back at you. This is what you are hoping to see: a dog who gets up and heads out with you, not one who watches you leave.

You are in the kitchen and you hear him on the stairs. He did not wait for you to come back up; he came down to find you, head high and tail swinging. It is a small thing, and it is one of the first things you miss when the energy runs low.

Your hand rests on his back in the afternoon sun and he stays close, in no hurry to be anywhere else. Following you from room to room. Staying in the middle of the day instead of at the edge of it. That is the old buddy you have been missing.

If your old buddy has been watching from the couch, it may not be the bed, the food or you. It may be what is happening on the inside, where his energy gets made.

He raced you to the door for years. Give him the chance to join in again, with a simple morning liquid on the breakfast he already loves. Ask your vet first, and there is a 90-day money-back guarantee too.

He has spent years being there for you. This is a small way to be there for him, every morning.

[1] Camacho-Pereira, J. et al. CD38 Dictates Age-Related NAD Decline and Mitochondrial Dysfunction Through an SIRT3-Dependent Mechanism. Cell Metabolism, 2016.

[2] Mitochondrial Aging and Age-Related Dysfunction of Mitochondria. BioMed Research International, 2014.

[3] Age-Dependent Decline of NAD+ — Universal Truth or Confounded Consensus? Nutrients, 2022.