What Is Wheat Gluten in Dog Food?

At a glance

• Wheat gluten is the protein extracted from wheat, used in dog food as a binder and to raise the protein percentage cheaply
• It's a plant protein, less complete than animal protein, and it comes from wheat, so it's unsuitable for dogs with a wheat sensitivity
• It isn't toxic, but it can make a recipe look higher in protein than its actual meat content suggests
• Marleybones is grain-free and uses no wheat gluten; protein comes from named meat

Wheat gluten is the protein left after the starch is removed from wheat. In dog food it's used as a binder to hold shape, and as a cheap way to raise the protein figure on the label. It isn't toxic, but as a plant protein it's less complete than meat, and it can make a recipe look more protein-rich than its actual meat content would suggest.

What is wheat gluten in dog food?

Wheat gluten is a concentrated wheat protein. Once the starchy part of wheat is washed away, what's left is a sticky, protein-rich substance that holds ingredients together and boosts the overall protein content of a recipe. It shows up most often in wet foods and shaped chunks, where its binding quality helps create texture.

On a label it may appear as "wheat gluten" directly, or be folded into a broader term like "cereals" or "derivatives of vegetable origin", depending on how it's used. That's worth knowing if you're trying to avoid it, because the words on the front of the pack won't always mention it.

Why is wheat gluten used in dog food?

Two reasons, mostly. It binds ingredients together, which is why it's common in wet foods and formed pieces, and it's a cheap way to lift the protein percentage. Because the protein figure on a label doesn't separate plant protein from animal protein, wheat gluten can raise that number without any extra meat going in. A food can look impressively high in protein while much of that protein comes from grain rather than meat.

Is wheat gluten bad for dogs?

It isn't harmful to most dogs, but it isn't the same as feeding meat. Protein quality matters as much as quantity, and plant proteins like wheat gluten are generally less digestible and lower in the range of amino acids a dog needs than animal protein. A recipe leaning on wheat gluten may therefore deliver less usable nutrition than its headline protein figure implies.

Because it comes from wheat, it's also unsuitable for dogs with a wheat sensitivity or intolerance. For those dogs, wheat gluten is one of the ingredients most worth checking the label for, especially as it can hide inside broader category terms.

How can you tell if a dog food contains wheat gluten?

Check the composition list. Wheat gluten is sometimes named directly, but it can also sit inside broader terms like "cereals" or "derivatives of vegetable origin", so its absence from the front of the list doesn't always mean it isn't there. A recipe that names every ingredient in full is the easiest way to be sure. If a label leans on category terms and you need to know, ask the manufacturer whether the recipe contains wheat gluten.

Does Marleybones use wheat gluten?

No. Every Marleybones meal is grain-free, with no wheat gluten and no wheat of any kind. The protein comes from named meat, whether that's chicken, beef, lamb or salmon, rather than from a plant-protein booster, and every ingredient is listed in full so there's nothing hidden behind a category term.

To find the right recipe for your dog, build their personalised Marleybones plan based on their age, size and needs.

FAQs

Is wheat gluten the same as gluten?

Gluten is the protein found in wheat and some other grains. Wheat gluten is that protein concentrated and separated out from the starch, then used as an ingredient in its own right.

Can dogs be allergic to wheat gluten?

Some dogs have a wheat sensitivity or intolerance and can react to wheat gluten, though true food allergies in dogs are more often to animal proteins. If your dog reacts to wheat, wheat gluten is an ingredient to avoid.

Why is wheat gluten used if it's cheap filler?

It does two useful jobs for manufacturers: it binds ingredients together and it raises the protein percentage cheaply. That doesn't make it as valuable to your dog as named meat, which is the more complete protein source.

Does Marleybones contain wheat gluten?

No. Every Marleybones meal is grain-free and contains no wheat gluten. Protein comes from named meat rather than plant-protein boosters.