Quick answer: Bully sticks are generally safe for most adult dogs when supervised, but they come with three real drawbacks: they're gone in minutes for any serious chewer, they smell genuinely awful, and they carry a high calorie load that adds up fast. If you want something that lasts hours per session and a single chew that holds up for days to weeks, has no odour, and sits at 93% protein with around 1% fat, a collagen chew like Fangz is the cleaner option.
What are bully sticks, exactly?
Bully sticks are made from dried bull penile muscle. That's the whole ingredient. They're a single-protein beef product, air-dried or oven-baked, and they've been a popular dog chew for decades. Most are imported, predominantly from South America or the US.
The appeal is real: they're digestible, dogs love them, and they're natural in the sense that the base material is meat, not wheat flour or synthetic compound. That puts them a decent step above rawhide (which is chemically processed hide) and far above grain-heavy dental sticks.
But safe-enough and optimal are two different things. Here's where bully sticks actually land.
Are bully sticks digestible and safe?
Yes, in most cases. Bully sticks are protein-based and digestible, so a dog that chews and swallows pieces won't generally face the obstruction risk that comes with harder chews like bone fragments. Vets broadly agree that bully sticks break down in the digestive system in a way that nylon or synthetic chews do not, which is a meaningful distinction from those alternatives.
The safety caveat is at the end of the chew. Once a bully stick gets short enough to swallow whole, it becomes a choking hazard. Vets routinely advise taking the nub away when it reaches a size your dog could gulp. If you're not supervising, that's a problem.
For dogs that are aggressive swallowers rather than methodical chewers, bully sticks carry more risk. Any chew does. Supervision is non-negotiable.
Do bully sticks last?
This is where the honest answer stings a bit if you've been relying on bully sticks to keep your dog settled.
For most dogs, a bully stick is gone in under 15 minutes. For a power chewer (Staffy, Kelpie, Lab, GSD, Malinois), it's often closer to 5. You're not buying hours. You're buying a snack that's finished before your coffee is.
The reason is texture. Bully sticks are fibrous and relatively soft compared to a dense, slow-dried collagen chew. They don't have the structural resistance that forces a dog to work slow. They get moist quickly with saliva and break down fast.
If your dog is demolishing every chew you give them, see what actually lasts for power chewers. Duration is almost never about the dog. It's almost always about the density of the product.
The smell problem
We're being direct: bully sticks smell. Not mildly. Not "a bit doggy." Genuinely bad, especially as they warm up and get wet with saliva. If you have a bully stick going in your lounge room on a warm afternoon, everyone in the house knows.
The odour comes from the nature of the ingredient. There's no processing step that removes it. Some brands market "odour-free" bully sticks, but these typically use additional chemical treatment or are just milder batches. They're not odourless. They're less offensive.
For odour-sensitive households, bully sticks are a consistent complaint. Fangz collagen chews, by contrast, are genuinely odourless. The air-drying process concentrates protein without producing the smell compounds you get from the muscle tissue in bully sticks. You can hand one to your dog in the car without regretting it.
Calories: the hidden issue
Bully sticks are high in calories relative to their size. A single 6-inch bully stick sits around 88 calories, depending on thickness and brand. For a 10kg dog on roughly 600 calories a day, one bully stick is about 15% of daily intake from a treat alone. That blows well past the 10% treat rule.
The 10% rule comes from veterinary nutritional guidelines: treats should account for no more than 10% of a dog's daily caloric intake to avoid tipping the energy balance (see how many chews a day is safe).
For dogs on a weight management plan, or any dog getting bully sticks daily, the calorie load matters. It adds up. This isn't about being precious. It's about the numbers.
Collagen chews are a different profile. Fangz sits at about 93% protein and around 1% fat. The caloric density is lower, and the chew lasts longer, so you're getting more minutes of satisfaction per calorie. That's the honest comparison.
Bully stick vs collagen chew: the numbers
| Feature | Bully stick | Fangz collagen chew |
|---|---|---|
| Main ingredient | Bull pizzle (beef muscle) | Beef collagen + beef gelatine + superfood |
| Ingredient count | 1 (most brands) | 3 |
| Protein (approx.) | ~80% | ~93% (Goat's Milk: ~82%) |
| Fat (approx.) | ~15-20% | ~1% (Goat's Milk: ~2%) |
| Odour | Strong | Odourless |
| Duration for average dog | 5 to 15 minutes | Hours per session; one chew lasts days to weeks |
| Duration for power chewer | 2 to 5 minutes | Hours per session; one chew still lasts days to weeks |
| Tooth safety | Generally safe (softens) | Softens with saliva, tooth-safe |
| Caloric load | High (~88 cal / 6-inch stick) | Lower (high protein, low fat) |
| Price-per-hour-of-chew | High (short duration) | Lower (hours of engagement) |
| Preservatives/additives | Varies by brand | None |
| Australian-made | Mostly imported | Yes (Brisbane) |
Are bully sticks safe for puppies?
The general guidance from vets is to wait until a puppy is at least 16 weeks old before introducing any chew, and to start with age-appropriate options. Bully sticks can work for puppies from around 4 to 6 months, with close supervision, because they soften with chewing and are digestible.
The main risks for puppies are the nub-swallowing issue mentioned above, and over-feeding. Puppies have smaller calorie budgets. One bully stick can represent a significant portion of a small puppy's daily intake.
If you want a puppy-safe chew that's also long-lasting, collagen chews that soften with saliva are a sound option from 4 months. Fangz is suitable from that age: a single chew lasts hours per session and holds up across days to weeks, so you're not buying a replacement every few days. They won't fracture puppy teeth, and the protein-to-fat ratio is appropriate for a growing dog. You can build your Fangz pack across sizes and flavours to find the right fit.
Are bully sticks safe for dogs with sensitive stomachs?
Usually, yes, because beef muscle is a single, identifiable protein and is generally well-tolerated. The issue is not the ingredient itself but the fat content. Dogs with pancreatitis, fat-sensitive conditions, or sensitive digestive systems can react to the higher fat load in bully sticks, especially if fed frequently.
If your dog has a sensitive gut, lower-fat options are worth considering. Fangz Pumpkin flavour uses real pumpkin powder alongside the collagen base and sits at 1% fat, making it a gentler choice for dogs that don't do well with rich treats. For the mildest option, Goat's Milk is creamy and gentle. See the full range on the Fangz Build Your Pack page.
What vets actually say about bully sticks
Vets generally consider bully sticks acceptable chews, with the standard caveats: supervise, remove the nub, don't over-feed. They're not a category that vets typically flag the way they flag yak chews, antlers, or hooves (see are yak chews safe for dogs).
The main veterinary concern around bully sticks is bacterial contamination. A 2013 study in the Canadian Veterinary Journal found a meaningful percentage of bully sticks tested positive for bacteria, including some concerning strains. Most commercially produced sticks from reputable brands are processed to reduce this risk, but raw or "natural" bully sticks carry higher contamination risk. Wash your hands after handling.
Where bully sticks make sense
We're not anti-bully-stick. If your dog is a moderate chewer, you're supervising, you're accounting for the calories, and you've made peace with the smell, bully sticks are a reasonable occasional chew. They're better than rawhide. They're better than synthetic nylon. They're digestible.
They're just not a long-duration solution for dogs that chew seriously. And they're not the clean-label, low-fat, odourless option that some dog owners want.
Bully sticks are the right call if: your dog is a light or moderate chewer, you want a single-protein beef chew, and you're giving it occasionally as a treat rather than a daily occupation.
Bully sticks fall short if: your dog destroys them in minutes, you can't handle the smell, you're managing your dog's weight, or you want something that genuinely occupies your dog for a meaningful stretch of time.
The collagen chew alternative
Fangz is made from beef collagen, beef gelatine, and one superfood per flavour. That's it. Three ingredients on the label. Made slowly in Brisbane over two to four weeks of air-drying, which creates a density that bully sticks can't match. The chew softens with saliva, so it's tooth-safe, but it doesn't collapse the way bully sticks do under a determined dog.
It's odourless. The protein is around 93%. The fat is around 1%. And it lasts hours per session, with a single chew often lasting days to weeks depending on how hard your dog goes at it. Hours, not minutes is the floor.
For more on how collagen chews compare to the wider field, see our complete guide to collagen for dogs and how chewing cleans a dog's teeth.
If you want to try one, build a Fangz pack. Sizes from Small (under 8kg) to Large (over 15kg). If your dog doesn't love it, we'll refund you.
Sources
- Freeman LM, Janecko N, Weese JS. (2013). "Nutritional and microbial analysis of bully sticks and survey of opinions about pet treats." Canadian Veterinary Journal, 54(1), 50-54. (PMC: pubmed.ncbi.nlm.nih.gov/23814301/)
- Flint HE, Atkinson M, Lush J, Hunt ABG, King T. (2023). "Long-Lasting Chews Elicit Positive Emotional States in Dogs during Short Periods of Social Isolation." Animals (MDPI), 13(4), 552. PMC9951671. (Referenced for long-duration chew benefit.)
- VOHC (Veterinary Oral Health Council): vohc.org (dental chew accreditation standards).
- Veterinary nutritional guidance on the 10% treat rule: sourced from general published veterinary nutrition references (not brand-specific).