An analysis conducted by the Dog Aging Project, a long-term scientific initiative led by the University of Washington and Texas A&M University, revealed that only 6% of the 1,726 homemade diets evaluated had the potential to meet the minimum nutritional needs of adult dogs.
The study, published in the American Journal of Veterinary Research, reinforces growing concerns about the popularity of home-cooked meals, which often fail to deliver the essential balance of nutrients for animal health.
'Since our study did not include the exact quantity of ingredients, it is possible that an even smaller percentage would actually be nutritionally complete,' said Janice O'Brien, co-author of the study and doctoral researcher at Virginia-Maryland College of Veterinary Medicine, Virginia Tech.
The research used reports provided by pet owners about ingredients and preparation methods, including data from the Dog Aging Project itself, which gathers information from more than 50,000 dogs. All the material was analyzed using Balance It, a tool aligned with the recommendations of the Food and Drug Administration (FDA) and the Association of American Feed Control Officials (AAFCO), bodies that regulate and define animal nutrition parameters in the United States.
Common mistakes in homemade diets increase nutritional risks for dogs
Researchers pointed out that changes made by pet owners, such as switching oil types, omitting ingredients, or failing to include mandatory supplements, especially calcium, directly compromise the nutritional balance of homemade diets.
Imbalances between calcium and phosphorus can lead to bone and kidney problems , and dogs with pre-existing conditions are even more at risk when fed unbalanced diets.
The group also reinforced the importance of avoiding dangerous ingredients , noting that foods like grapes are toxic to dogs and that whole bones pose serious threats, as fragments can perforate or obstruct the gastrointestinal tract.
Homemade food is growing in popularity, but requires professional supervision
Although homemade food continues to grow in popularity, especially among pet owners seeking a more natural and personalized routine for their pets, the study warns that this type of diet requires rigorous professional supervision.
Researchers recommend that any pet owner who chooses to cook for their dog work directly with a certified veterinarian or veterinary nutritionist , follow the recipe exactly as prescribed, and, whenever possible, submit samples for laboratory analysis in nutritional monitoring programs.
Source: Panorama Pet&Vet
You could be interested: Ground Breaking New Study Reveals the True Complexity of the Canine Microbiome
Events
IBERZOO PROPET
11 to 13 March, 2026
Madrid, España
https://www.ifema.es/iberzoo-propet
Simposio CS Petfood & Aquafeed
15 to 16 April, 2026
Pilar, Buenos Aires, Argentina
https://www.cliviosolutions.com/
PET FOOD FORUM KANSAS
27 to 29 April, 2026
Kansas City, Missouri, USA
https://www.petfoodforumevents.com/
interpack
07 to 13 May, 2026
Düsseldorf, Alemania
https://www.interpack.com/
Smart Pet Food Production
11 May, 2026
Sheraton Carlton Nürnberg
https://www.petfoodcompetencenet.com/events/
Interzoo 2026
12 to 15 May, 2026
Nuremberg, Germany
https://www.interzoo.com/en
FENAGRA 2026
12 to 14 May, 2026
Santana – São Paulo
https://www.fenagra.com.br/
XXIV CONGRESO DE PET DE LA CBNA
12 to 14 May, 2026
São Paulo Expo, Brasil
https://www.fenagra.com.br/congresso/cbna-pet/
EXPO PACK México 2026
02 to 05 June, 2026
Ciudad de México, CDMX.
https://www.expopackmexico.com.mx/
VICTAM 2026
02 to 04 June, 2026
Utrecht, Países Bajos
https://victaminternational.com/
VIV Europe 2026
02 to 04 June, 2026
Utrecht, the Netherlands
https://www.viveurope.nl/
Foro Mascotas 2026
24 to 26 June, 2026
Expo Guadalajara, Mexico
https://www.foromascotas.mx/en
Pet South America 2026
12 to 14 August, 2026
São Paulo Expo, Brazil
https://petsa.com.br/
Pet Fair Asia 2026
19 to 23 August, 2026
Shanghai, China
https://en.petfairasia.com/
CIPAL 2026
23 to 24 September, 2026
Buenos Aires, Argentina
https://cipal.com.ar/?lang=en
PETZOO Eurasia
07 to 10 October, 2026
İFM- İstanbul Expo Center
https://petfuari.com/en/
SINPET 2026
15 to 16 October, 2026
Porto Alegre, Brazil
https://www.instagram.com/sinpet2026/
FIGAP 2026
21 to 23 October, 2026
Guadalajara, Jalisco, Mexico
https://figap.com/
Pet Fair South East Asia
28 to 30 October, 2026
Bangkok, Thailand
https://petfair-sea.com/

