Soy-Free Dog Food: What to Look For

At a glance

• Soy-free dog food contains no soy in any form, whether as soybean, soya meal or soy protein
• Soy is used in some foods as a cheap plant protein and bulking agent
• Soy can appear under terms like "derivatives of vegetable origin", so a fully named label is easiest to check
• Every Marleybones recipe is soy-free, with protein coming from named meat

Soy-free dog food contains no soy in any form, whether as whole soybean, soya meal or isolated soy protein. Soy is used in some dog foods as a cheap plant protein and a bulking agent, and it's one of the ingredients a number of owners choose to leave out, whether for a suspected sensitivity or simply as a preference. Every Marleybones recipe is soy-free, with the protein coming from named meat rather than plant sources.

What is soy-free dog food?

Soy-free dog food contains no soy at all. Soy is a plant protein made from soybeans, and in dog food it turns up as soya meal, soybean hulls or concentrated soy protein, used to raise the protein figure cheaply and to add bulk.

Because it's a plant protein, soy is sometimes used in place of meat to lift the protein percentage on a label without the cost of more meat. A soy-free food leaves it out entirely.

Why do owners choose soy-free food?

Sensitivity is one reason. Soy is a recognised food sensitivity in some dogs, and an affected dog may do better without it, which is worth discussing with your vet. It's less common than a reaction to animal protein, but it does occur.

Preference is the other. Some owners would rather their dog's protein came from named meat than from a cheaper plant source, and soy-free food fits that. Soy isn't harmful to most dogs, but if avoiding it matters to you, a soy-free recipe keeps it out.

Where is soy used in dog food?

Soy is most common in cheaper dry foods, where it's a low-cost way to raise the protein content, and in some treats and meat-style chunks, where textured soy protein is used to mimic meat. On a label it can appear as soya meal, soybean hulls or soy protein concentrate. Because it's usually there to bulk out protein cheaply rather than for any particular benefit, a food built around named meat generally has no need for it. Checking treats as well as the main food is worth doing if you're avoiding soy completely.

How do you find a genuinely soy-free dog food?

Read the composition list. Soy may be named directly, as soya or soybean meal, but it can also sit under a broad term like "derivatives of vegetable origin", so its absence from the front of the label doesn't always prove a food is soy-free. A recipe that names every ingredient in full is the easiest way to be sure, and if a label leans on category terms, you can ask the manufacturer directly.

Is Marleybones soy-free?

Yes. None of the four Marleybones recipes contain soy in any form. 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. If you want to know what else is worth checking a label for, the guide to dog food ingredients to avoid covers the rest.

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

FAQs

Is soy bad for dogs?

Soy isn't harmful to most dogs, and it's a source of plant protein. The reasons to avoid it are a soy sensitivity, which some dogs have, or a preference for protein that comes from named meat rather than a cheaper plant source.

Why is soy used in dog food?

Soy is a cheap plant protein, so it's used to raise the protein percentage on a label and to add bulk. Because a protein figure doesn't separate plant protein from meat, soy can lift that number without adding meat.

Can dogs be allergic to soy?

Some dogs have a soy sensitivity or intolerance, though it's less common than reactions to animal proteins. If you think soy is affecting your dog, speak to your vet about a soy-free diet.

Is Marleybones soy-free?

Yes. All four Marleybones recipes are soy-free, with protein from named meat rather than plant-protein boosters.