Home / Health / Pet Nutrition / What to Look for in Dog Food: Ingredients Explained What to Look for in Dog Food: Ingredients Explained
Veterinary references checked with PetHealth+
· Last reviewed June 2026
By the Global Animal Guide editorial team • Veterinary references checked with PetHealth+ ( process ) • Last reviewed June 2026 • Cite this page • How we research & review Veterinary-source checked. This guide was
editorially checked against current UK veterinary reference sources with PetHealth+ · Last reviewed June 2026. It is for general education
only and is
not a substitute for professional veterinary advice
. Always consult your own veterinarian about your pet. In an emergency,
contact your vet, the nearest emergency animal hospital, or a pet poison helpline
immediately.
Choose foods labelled 'complete' for your dog's life stage. Named meat sources (e.g. chicken, lamb) should appear high on the ingredient list. Avoid foods where vague terms like 'meat derivatives' dominate without clarity.
Complete vs complementary
Complete foods meet all nutritional needs; complementary treats or toppers do not replace meals.
Protein and fat
Active dogs need adequate protein; working breeds may need more. Your vet can advise for medical conditions.
Grain-free caution
Some grain-free diets have been linked to heart disease in dogs — discuss with your vet before switching.
Related: Toxic foods for pets
Frequently asked questions Is grain-free better for dogs? Not necessarily — grain-free is not needed unless your vet diagnoses a specific allergy.
What does 'complete' mean on dog food? The food contains all nutrients a dog needs for that life stage without additional supplements.
Should I rotate dog food brands? Consistency aids digestion; change gradually over a week if switching.
Are by-products bad? Quality varies — named organ meats can be nutritious; vague 'derivatives' are harder to assess.
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