They’re Calling It Peptides Now. It’s Still Just Bone Broth.
Why collagen peptides for dogs are just bone broth, repackaged. And how to make it at home.
Everyone is talking about peptides. It sounds precise. Like something a researcher hands you in a sterile lab, not something your grandmother simmered on the back of a stove for twelve hours.
But nobody sits down to a steak and says, “I’m consuming amino acids tonight.” Nobody puts butter on toast and announces they’re taking in dietary lipids.
The language shifted because marketing departments have products to sell. Meanwhile, the food never changed.
They are calling it peptides now. It is still just bone broth.
The supplement industry takes something that already exists, extracts one part, gives that part a technical name, and sells it back to you at a markup. The food behind the name has not changed at all.
I grew up in Papua New Guinea, and soup was just part of eating. It came before the meal. Nobody announced it, nobody made a thing of it. It was simply there. Go to any Asian restaurant and you’ll see the same logic still intact. Soup is on the menu, and if you’re lucky it may even be complimentary.
Here in the US, somewhere along the way, soup got pushed out and appetizers moved in. Mozzarella sticks. Loaded potato skins. Fried things on small plates. I don’t know exactly when it happened, but the shift is real, and I think we lost something when it did. Not just nutritionally. Culturally. Soup was the thing that said: we’re slowing down now, we’re warming the body before we ask it to work.
Dogs made the same trade, and they didn’t get a vote.
Before kibble, dogs ate leftovers. Table scraps, food leftovers, the water the bones had been simmering in all day. They got bone broth because the house was already making it, because nothing was wasted, because that’s just what you did with bones. Then kibble arrived, and we decided that convenience was the same thing as nutrition. The broth stopped. The scraps stopped. The whole system got replaced by a bag with a picture of a happy dog on it.
Now we’ve come full circle, sort of. Bone broth is back. Except now it comes in a box, or a plastic sachet, or a shelf-stable carton with a label that says “human grade” and costs eleven dollars.
We forgot how to make it at home, so someone packaged the memory and sold it back to us.
That’s the part that cracks me up. Not because people are bad for buying it. But because the bones are still at the butcher’s. The stove still works. The knowledge was never gone, just buried under enough convenience that we stopped reaching for it.
People don’t cook meals like they used to. As a result, people outsource food, and marketing departments saw an opportunity and moved in. “Collagen peptides.” “Bioavailable glycine complex.” This is the supplement industry doing what it does best: taking something that already exists, extracting one part of it, giving that part a technical name, and selling it back to you at a markup. And to be fair, it works, because it sounds like progress.
But here’s where it falls apart. Glycine is an amino acid. The supplement industry sells it in capsules now, marketed for joint support and recovery. Fine.
One piece
Glycine, extracted and concentrated, sold for joints and recovery. The names get more elaborate every year: collagen peptides, bioavailable glycine complex, targeted delivery. One compound, lifted out of the matrix it came from, at a markup.
The whole thing
Glycine, proline, hydroxyproline, gelatin, collagen precursors, and trace minerals. A matrix of compounds that don’t work in isolation. They work together, in the form a body was designed to recognize.
Isn’t glycine supplementation just bone broth repackaged and marked up? Yes. That is exactly what it is.
When you simmer bones low and slow, collagen breaks down into gelatin. That gel you see when the broth cools in the fridge, the wobble, that’s not a sign that something went wrong. That’s the whole point. Gelatin coats and soothes the gut lining, supports digestion, and helps repair intestinal permeability.
The amino acids glycine and proline are released in the process. These are the building blocks of connective tissue: tendons, ligaments, cartilage, and the gut wall.
In Traditional Chinese Medicine, bones correspond to the Kidney system. The Kidney governs essence, aging, skeletal integrity, and the deep reserves of vitality. When we feed broth, we’re not just feeding glycine.
We’re feeding the whole animal.
Bone broth is warming in nature. It tonifies Qi and supports the Middle Jiao, the digestive center.
Dogs who run cold, seek warmth, tire easily, and are moving through the later years. A dog recovering from illness, navigating a deficiency pattern, aging out of the vigor she had at three. This is her food.
For dogs with excess heat, active inflammation, or acute pancreatitis, use it more cautiously.
You don’t need a recipe. You need a method.
No onions. No salt. If you’re buying cartons at the store, read every ingredient, and know that if it doesn’t gel, there wasn’t enough collagen to begin with.
The supplement industry will keep repackaging this. Hydrolyzed collagen. Targeted glycine delivery. Bioavailable peptide complex. The names will get more elaborate and the price will keep climbing. Behind all of it will be the same thing: broken-down connective tissue from animals, in a form the body knows how to use.
You can make that at home for a few dollars. You can even buy chicken feet at Costco, and your dog would prefer the one that’s made at home, by you.
