If chicken is the suspect, you cannot choose a dental chew from marketing copy. Most brands, Ark Naturals among them, do not publish a full ingredient declaration online. Read the printed panel on the pack, and treat the elimination diet trial your veterinarian designs as the thing that actually answers the question.
Allergy, sensitivity, and why the distinction matters
Owners use the word allergy for a wide range of reactions, and veterinarians use it more narrowly. A genuine food allergy involves the immune system. A food intolerance or sensitivity does not, but can look similar from the sofa: itchy skin, recurrent ear trouble, licking at paws, loose stool, or a dog who simply seems uncomfortable in their own coat.
The reason the distinction matters here is practical. Neither is something you can confirm at home, and neither is something a product can resolve. Both are diagnosed by a veterinarian, and the standard method is an elimination diet trial: a strictly controlled diet for a set period, followed by deliberate reintroduction to see what provokes a response.
Chicken is one of the proteins most often implicated, which is partly a reflection of how common it is in pet food rather than anything sinister about chicken itself. A dog eats something for years, and over years a sensitivity can develop.
If you have not yet had this investigated, the shopping decision is premature. Book the appointment first. What follows is about getting the chew right once your veterinarian has told you what you are avoiding.
The chew nobody counts
Here is the thing that derails more diet trials than any other single factor. The food gets changed carefully, the treats get put in a cupboard, and the dental chew carries on being given every night because it does not feel like food.
It is food. A dental chew is ingested, it contains protein, and during a strict elimination trial it counts exactly as much as a bowl of kibble does. So do flavoured supplements, flavoured medication coatings, dental water additives, toothpaste, and whatever the dog hoovers up on a walk.
Tell your veterinarian about every one of those before the trial starts, not after it fails. A trial with an uncontrolled variable running through it produces a result you cannot act on, and you have spent eight to twelve weeks to learn nothing.
The awkward corollary is that a dog in a strict trial may need to pause dental chews altogether for the duration. That is a real cost, because oral care is not something you want to interrupt casually. Your vet can help you decide whether to pause, substitute or brush instead, and brushing is often the answer, since a toothbrush with an appropriate paste adds no protein question at all. The American Animal Hospital Association keeps an owner facing overview of home dental care at aaha.org that is worth reading before you drop the routine entirely.
What a product page will and will not tell you
This is the uncomfortable part, and it applies across the category rather than to any one brand.
Pet product pages are built to sell. They describe benefits, format, texture and who the product is for. What they very rarely carry is the complete ingredient declaration in order, the guaranteed analysis, or the calorie content. Ark Naturals is consistent with the category here: its dog dental products are described online in terms of what they do and who they suit, without a full printed panel reproduced on the page.
So a page that does not mention chicken is not telling you the product is chicken free. It is telling you the page does not list ingredients. Those are very different statements, and treating the first as if it were the second is how a careful owner accidentally breaks their own trial.
Two other traps worth naming. Poultry derived ingredients do not always have the word chicken in them, so a panel can include a poultry component under a different name. And a dog reacting to one protein is not automatically safe with every other protein, so swapping chicken for something the dog has also eaten for years may not be the clean substitution it looks like.
Where the information actually lives
The rule that follows from that table is short. Buy from the panel, not from the page. If you cannot get hold of the pack before purchasing, contact the manufacturer and ask for the current ingredient declaration for the exact size and flavour you intend to buy, because formulations and variants differ.
Where Ark Naturals Gentle Digest fits
A protein investigation almost always means a food change, and often several. That is the moment digestive support becomes relevant, and it is why this article ends up pointing at a digestive chew rather than a dental one.
Gentle Digest is a soft chew combining probiotics and prebiotics, which Ark positions as helping to balance intestinal microflora to support proper digestion and bowel health. Ark names switching foods as one of the situations it is intended for, along with feeding a raw diet and travelling. Ark crafts the chews in the USA, uses no artificial flavors or colors, and prices the tub at $13.30.
Two honest caveats, both important in this specific context.
First, a digestive chew does nothing about a protein sensitivity. It is not a treatment, it will not let a sensitive dog tolerate a food they react to, and it is not part of the diagnostic process.
Second, and more relevant, a chew given during a strict elimination trial is another ingested product and therefore another variable. If your dog is mid trial, do not add it without asking your veterinarian first, however gentle it sounds. Once the trial is finished and you know what you are working with, a food transition supported by a daily chew is a much more ordinary proposition. Current format and pricing are on the Gentle Digest product page.
As with everything else in this category, the number of chews per day comes from the printed pack. Ark publishes no feeding chart online, and your veterinarian is the right person to confirm it for your dog.
What to bring to the appointment
Diet trials go better when the veterinarian starts with a complete picture, and owners consistently underestimate how much they are feeding.
Write a list of everything that goes into your dog in a normal week. Not just the food. Every treat, every chew, every training reward, the flavoured coating on a tablet, the peanut butter used to get the tablet down, the dental chew, the water additive, the thing the children slip under the table. Photograph the ingredient panels on the packs while you are at it, because the panel is what your vet needs and product names alone are not enough.
Add a short symptom history. When did you first notice it, what does it look like, has it got worse, is it seasonal, does anything make it better.
Then ask directly which of those items has to stop for the trial and which can continue. That single question prevents most of the accidental contamination that ruins trials, and it is far easier to answer before you start than to unpick afterwards.
If your dog is on any medication, say so. Some coatings and compounded flavourings carry protein, and your vet may need to source an alternative formulation for the duration.
Frequently asked questions
Can I keep giving dental chews during an elimination diet trial?
Only if your veterinarian says so. A dental chew is ingested and contains protein, so during a strict trial it counts as part of the diet in the same way food does. Raise it explicitly before the trial starts, along with flavoured supplements, flavoured medications and toothpaste, so your vet can design a plan you can actually follow.
How do I find out whether a dental chew contains chicken?
Read the ingredient declaration printed on the pack, which lists ingredients in order and is the authoritative source. Product pages describe benefits rather than reproducing the panel, so the absence of the word chicken online tells you nothing. If you cannot access the pack, contact the manufacturer and ask for the current declaration for the exact variant you intend to buy.
Does Ark Naturals publish ingredient panels for its dental chews?
Ark's online product information describes format, texture and intended use rather than reproducing the full ingredient declaration, which is consistent with most of the category. The printed pack carries the panel, and Ark can be contacted directly if you need the declaration before buying.
My dog is itchy. Is that a food allergy?
It might be, and it might be several other things, including environmental allergies, parasites or a skin condition. Itching is a sign, not a diagnosis, and food is only one of the possible causes. A veterinarian needs to examine your dog and rule things out in order before a food trial is worth running.
Is switching to a novel protein enough on its own?
Not by itself, and not without guidance. A novel protein diet only works as a diagnostic tool if it is genuinely novel for that individual dog and if nothing else gets past it, which is harder than it sounds in a household with treats, chews and a second pet. Your veterinarian should choose the protein and set the rules.
Related reading: Ark Naturals Gentle Digest: What Helps a Dog Switching Foods?