Exploring the potential link between vegetable oil supplementation and adverse food reactions in dogs: a preliminary study

Abstract Background Adverse food reactions (AFR) are a common cause of skin diseases in dogs, with a prevalence of up to 24%. Research in humans and mice has shown that a high intake of vegetable oils rich in omega-6 polyunsaturated fatty acids (n-6 PUFA) can increase the risk and severity of allerg...

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Main Authors: Elisa Maina, Eric Cox
Format: Article
Language:English
Published: BMC 2025-04-01
Series:BMC Veterinary Research
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Online Access:https://doi.org/10.1186/s12917-025-04720-0
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author Elisa Maina
Eric Cox
author_facet Elisa Maina
Eric Cox
author_sort Elisa Maina
collection DOAJ
description Abstract Background Adverse food reactions (AFR) are a common cause of skin diseases in dogs, with a prevalence of up to 24%. Research in humans and mice has shown that a high intake of vegetable oils rich in omega-6 polyunsaturated fatty acids (n-6 PUFA) can increase the risk and severity of allergic diseases. This study aimed to investigate the association between AFR and the supplementation of vegetable oils in the canine diet. Results A total of 459 dogs were analyzed, with atopic dermatitis (22.66%) and adverse food reactions (AFR) (8.06%) being the most common diagnoses. Oil supplementation was recorded in 14.16% of dogs, with extra-virgin olive oil being the most common (70.77%). Dogs with AFR and concurrent AFR and CAD showed significantly higher oil supplementation rates compared to other conditions (P < 0.05; P < 0.001). No significant association was found between oil type and diagnosis (P = 0.563). After excluding EFA-supplemented dogs and those on prescription dermo diets, oil supplementation was still more prevalent in dogs with AFR compared to other conditions (29.31% vs. 10.10%, P < 0.001). Conclusions Vegetable oil supplementation was more frequent in dogs with AFR than in those with other dermatological conditions. This is the first study to evaluate the relationship between vegetable oil supplementation and AFR in dogs. While vegetable oil supplementation is associated with AFR, further studies are needed to establish causality and better understand the role of n-6 PUFA in the development of food allergies in dogs.
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spelling doaj-art-c6658dd97b1a4fbbaea439f2b0cb1ef22025-08-20T02:28:08ZengBMCBMC Veterinary Research1746-61482025-04-0121111010.1186/s12917-025-04720-0Exploring the potential link between vegetable oil supplementation and adverse food reactions in dogs: a preliminary studyElisa Maina0Eric Cox1Department of Clinical Veterinary Medicine, Division of Clinical Dermatology, Vetsuisse Faculty, University of BernDepartment of Animal Health and Biomedical Sciences, SLU - Swedish University of Agricultural SciencesAbstract Background Adverse food reactions (AFR) are a common cause of skin diseases in dogs, with a prevalence of up to 24%. Research in humans and mice has shown that a high intake of vegetable oils rich in omega-6 polyunsaturated fatty acids (n-6 PUFA) can increase the risk and severity of allergic diseases. This study aimed to investigate the association between AFR and the supplementation of vegetable oils in the canine diet. Results A total of 459 dogs were analyzed, with atopic dermatitis (22.66%) and adverse food reactions (AFR) (8.06%) being the most common diagnoses. Oil supplementation was recorded in 14.16% of dogs, with extra-virgin olive oil being the most common (70.77%). Dogs with AFR and concurrent AFR and CAD showed significantly higher oil supplementation rates compared to other conditions (P < 0.05; P < 0.001). No significant association was found between oil type and diagnosis (P = 0.563). After excluding EFA-supplemented dogs and those on prescription dermo diets, oil supplementation was still more prevalent in dogs with AFR compared to other conditions (29.31% vs. 10.10%, P < 0.001). Conclusions Vegetable oil supplementation was more frequent in dogs with AFR than in those with other dermatological conditions. This is the first study to evaluate the relationship between vegetable oil supplementation and AFR in dogs. While vegetable oil supplementation is associated with AFR, further studies are needed to establish causality and better understand the role of n-6 PUFA in the development of food allergies in dogs.https://doi.org/10.1186/s12917-025-04720-0Adverse food reactions (AFR)N-6 Polyunsaturated Fatty Acids (PUFA)Canine Atopic Dermatitis (CAD)Vegetable OilsDietary SupplementsEssential Fatty Acids (EFA)
spellingShingle Elisa Maina
Eric Cox
Exploring the potential link between vegetable oil supplementation and adverse food reactions in dogs: a preliminary study
BMC Veterinary Research
Adverse food reactions (AFR)
N-6 Polyunsaturated Fatty Acids (PUFA)
Canine Atopic Dermatitis (CAD)
Vegetable Oils
Dietary Supplements
Essential Fatty Acids (EFA)
title Exploring the potential link between vegetable oil supplementation and adverse food reactions in dogs: a preliminary study
title_full Exploring the potential link between vegetable oil supplementation and adverse food reactions in dogs: a preliminary study
title_fullStr Exploring the potential link between vegetable oil supplementation and adverse food reactions in dogs: a preliminary study
title_full_unstemmed Exploring the potential link between vegetable oil supplementation and adverse food reactions in dogs: a preliminary study
title_short Exploring the potential link between vegetable oil supplementation and adverse food reactions in dogs: a preliminary study
title_sort exploring the potential link between vegetable oil supplementation and adverse food reactions in dogs a preliminary study
topic Adverse food reactions (AFR)
N-6 Polyunsaturated Fatty Acids (PUFA)
Canine Atopic Dermatitis (CAD)
Vegetable Oils
Dietary Supplements
Essential Fatty Acids (EFA)
url https://doi.org/10.1186/s12917-025-04720-0
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