Are Bully Sticks a Sustainable Dog Treat? What Actually Holds Up

A bully stick is a by-product: one part of an animal raised for beef, so no steer is raised for the chew. That's the sustainability claim that survives checking. The bag in your hand probably makes three or four more claims.

Sustainable is not a regulated word on a dog treat. Most of what the category attaches to it goes unsourced: carbon figures, landfill-rescue stories, greener packaging. Here's what a bully stick — dried beef pizzle, one ingredient — can honestly claim, and what it can't.

What makes a dog treat sustainable

Start with the fact nobody has to sell you. Cattle are raised for beef. Nobody raises a steer for its pizzle, and nobody ever will.

The side stream is bigger than you'd guess. A USDA report on beef and pork byproducts defines byproducts as "all parts of a live animal that are not part of the dressed carcass." That comes to about 44 percent of the liveweight of cattle. Roughly 40 percent of a live beef animal's weight goes through rendering.

So nearly half of every animal was never going to be steak. Some of it gets dried into chews with nothing added — that's what a bully stick is, and all of what's inside one. That's the argument, and on its own it's enough.

Three sustainability claims, checked

Three claims turn up on nearly every sustainable-dog-treat page. Only the first is about the chew.

Read the middle column first. A claim is only as good as the thing that would have to be true underneath it, and two of these three have nothing underneath.

Why "saved from the landfill" is the wrong story

This is the line the category loves — and it runs backwards. Byproducts were not sitting in a dumpster waiting for somebody kind to rescue them. They're a commercial stream with buyers, prices and export markets.

The same USDA report says the pet food industry "significantly boosted demand and, hence, value for animal byproducts," and it names pizzles among the things pet stores now sell. Demand didn't rescue the pizzle. Demand is why the pizzle has a price.

There's an honest complication in that, and it belongs here rather than in a footnote. The report's regression finds that a 10-percent rise in the byproduct drop value lifts steer prices by 1.1 percent. Byproduct demand feeds back, faintly, into what a live animal is worth. Faint is not zero. A treat from a part nobody was lining up for is still the better version. It is not a treat with no footprint.

Nobody can put a carbon number on one chew

You'll see figures anyway. The problem isn't arithmetic, it's allocation: one steer yields beef, hide, tallow, offal and a single pizzle, and there's no agreed way to split its emissions between them.

Change the allocation rule and the number moves with it. Split by weight and a pizzle looks tiny. Split by revenue and it looks different again. A brand publishing a carbon figure for a chew has picked one of those rules — and usually hasn't told you which.

That does not make your dog's food free. Okin's 2017 paper in PLOS ONE put US dogs and cats at 25 to 30 percent of the land, water, fossil fuel, phosphate and biocide burden of American animal production. The footprint is real. It just cannot be measured one stick at a time.

What the FTC says about the word eco-friendly

This part is not opinion — it's why the word stays off our pages. The Federal Trade Commission's Green Guides run to seventeen sections, from carbon offsets to compostable. The word sustainable appears in none of them.

What the guides do say is that marketers should not make unqualified general environmental benefit claims. The example in the rule is blunt. The Green Guides say the brand name "Eco-friendly" likely tells a shopper a product has far-reaching environmental benefits, and maybe no negative impact at all.

Because a marketer is unlikely to be able to substantiate that, the guides call using it deceptive. Environmental claims, they add, usually need "competent and reliable scientific evidence."

Packaging works the same way. A brand may call something recyclable without qualification only where facilities reach a substantial majority of shoppers — which the guides define as at least 60 percent. We're not making a packaging claim here, because we haven't done that arithmetic.

Grass-fed is true, and it is not a climate claim

Our own shop copy says 100% grass-fed beef. That describes how the cattle were fed. It tells you nothing about carbon.

Grazing gets sold as carbon-neutral on the theory that pasture soil banks what the herd emits. A 2023 paper in Nature Communications ran that sum. Offsetting the world's ruminant methane and nitrous oxide would take about 135 gigatonnes of carbon, close to twice the carbon now held in the world's managed grasslands.

Origin is the harder word. Grass-fed describes a diet; it does not tell you where the animal stood, and labels blur the two. What a chew label says about sourcing works through what you can actually verify.

The sustainable part that is actually yours

Here's the piece you control — and it matters more than any label. A bully stick is digestible, so the chew itself is rarely the waste. It's the chew that was bought wrong.

A stick too big for your dog gets abandoned half-finished. A stick too small is gone before you've sat down. Match length to your dog's weight and the chew gets used instead of thrown out. 6-inch bully sticks cover the 25-to-60-pound band, and the size guide handles thickness.

Buying fewer chews that fit is the whole environmental move you have. Compare lengths and cuts across all bully sticks in one place, and run the checks in choosing a bully stick on any brand, ours included.

The stub, and the one piece that really is waste

The stub earns its trip to the trash. Once about three inches are left — or the piece would fit whole inside your dog's mouth — it stops being a chew and becomes a swallowing risk. Take it, hand over a treat, and make the trade look generous.

One more kind of waste is worth naming. A chew your dog cannot tolerate is a whole product thrown away, so if yours is on a prescription or elimination diet, clear any new chew with your vet first. If stools stay loose past a day, stop and ask.

Sustainable dog treats FAQ

Are bully sticks eco-friendly?

Not in the way that phrase is usually sold. A bully stick is a by-product of an animal raised for beef, so no steer is raised for the chew — and that part is solid. Past it, the carbon numbers and the landfill stories have nothing published underneath them. The FTC's own guides treat an unqualified eco-friendly claim as deceptive, so we leave the word off.

What is the most sustainable dog treat?

The one your dog finishes. Ingredient arguments are small next to waste at your end: a chew sized wrong gets abandoned, and a treat your dog won't touch is a whole product thrown away. Single-ingredient by-product chews start from a better place than a formulated biscuit. But your sizing decision does more work than the sourcing story ever will.

Are bully sticks biodegradable?

They're dried animal tissue rather than plastic, and that's as far as we'll take the word. Disposal barely comes up in practice, because a bully stick is digestible and your dog eats the treat. The only piece thrown away is the stub you take back for safety, roughly the last three inches. Those three inches are the trade for not leaving a swallowing risk on your floor.

A bully stick is a by-product of an animal already raised for beef, and that's the whole honest claim. Buy the size your dog will finish, take the stub, and skip anything that promises the planet.