Pet Food Ingredient
Soy
Soybean-derived protein and fibre. Appears as soybean meal (protein), soy flour, or soy hulls (fibre) in a range of commercial pet foods, particularly budget tiers.
Also labelled as
Regulatory status
AAFCO defines soybean meal as the product obtained by grinding the flakes which remain after removal of most of the oil from soybeans.
Key notes
- —Reported in roughly 6-10% of confirmed canine food allergies.
- —Soybean oil does not typically trigger the allergy because the offending protein fraction is largely absent — but whole soy and soybean meal do.
Classified as a soy allergen source in the scanner's cross-match. If your pet reacts to soy, this ingredient is also a trigger.
Common alternatives
Brands commonly using this ingredient
List based on typical formulations — specific SKUs may vary. Scan the actual label to confirm.
In-depth guides
Common questions
Is soy a common allergen in dogs?
Moderately. Roughly 6–10% of confirmed food-allergic dogs react to soy (Mueller 2016) — more common than lamb or fish but less common than chicken, beef, or dairy. Soy appears mainly in budget kibble (soybean meal as protein extender) and in some Rx hypoallergenic foods as hydrolysed soy, where the fragments are small enough to escape most allergic responses.
Is soy in pet food GMO?
Almost always. Over 95% of US-grown soy is genetically modified per USDA data. Unless a brand explicitly labels "non-GMO soy" or "Non-GMO Project Verified", assume the soy is GMO. GMO status does not affect allergenicity — the allergenic proteins are the same in GMO and non-GMO soy. Non-GMO is a separate consumer preference, not an allergy-safety distinction.
Is this ingredient in your pet's food?
Scan the label. If it contains soy or any of the alternative names above, the scanner will flag it against your pet's allergen profile.
Scan a label →This entry is factual reference. It is not medical or veterinary advice. Consult a veterinarian for any decisions about your pet's diet.