PetFoodRate sélection
Best supplements for dogs (A and B grades)
1 supplements products for dogs graded A to E by PetFoodRate. Here is the top 1 according to our methodology: protein quality, nutritional value, absence of undesirables, transparency, and adaptability.
In short
PetFoodRate grades 1 supplements for dogs from A to E; none reach an A or B grade. The top pick is The Regal Mutt Scottish Salmon Oil at 62/100 (grade C). Independent scoring, no sponsored brands.
Top 1 supplements for dogs, ranked
Method: the PetFoodRate Score. Ranking updated July 21, 2026.
| # | Product | Grade | Score | Protein | Price/kg | Offer |
|---|---|---|---|---|---|---|
| 1 | The Regal Mutt Scottish Salmon Oil | C | 62/100 | n/a | 40.00€ | See offer |
How we grade these products
The PetFoodRate Score gives each product an A to E grade based on five sub-scores: protein quality, nutritional value, absence of undesirable ingredients, label transparency, and species adaptability. The final grade combines these sub-scores with a weighting calibrated per species and product type. No commercial partnerships, no sponsored brands.
Nutrient thresholds reference the FEDIAF nutritional guidelines for cats and dogs.
Read the full methodologyFrequently asked questions
What is the best-rated supplements for dogs in 2026?
The top-rated product by PetFoodRate is The Regal Mutt Scottish Salmon Oil, with a score of 62/100 (grade C). It leads a ranking of 1 supplements graded on protein quality, nutrition, undesirables, transparency, and species fit.
How many supplements are graded A or B for dogs?
Out of 1 supplements for dogs in our database, 0 earn an A grade and 0 earn a B grade. Only A and B foods make our recommended list.
How is this ranking decided?
Each food earns an A to E grade computed from five sub-scores: protein quality, nutritional value, absence of undesirables, label transparency, and species adaptability. The weighting is calibrated per species and product type. See our methodology page for full details.
Is this ranking sponsored or affiliate-influenced?
No. Rankings are derived purely from the ingredient and composition data we collect. We earn affiliate revenue only when a reader buys via a retailer link, which has zero impact on the grade a product receives.