Nutrition and supplement research

Choose a specific purpose before choosing a bottle. A manufacturer’s veterinarian-recommended description, an owner’s experience and a controlled clinical result each tell us something different.

For senior dogs

Our expanded comparison covers 12 options for mobility, cognition, calming, digestion, teeth, ears and skin. Read the evidence, formula limitations and transparent Research Scores together.

Start with the diet

An appropriate complete food may already provide the nutrients your pet needs. A broad multivitamin is not an automatic improvement. Dog study findings and doses should not be carried over to cats.

The earlier general supplement rankings have been retired in favor of purpose-specific assessments. Educational guidance, not individual medical advice.