The healthiest dog food varies. It's challenging to pinpoint a single "healthiest" dog food brand. The best choice depends on an individual dog's nutritional needs, health conditions, and preferences. Plus, it's essential to consult a veterinarian to determine the best diet for a specific dog. However, JustFoodForDogs is often recommended for its human-quality ingredients and comprehensive nutrition profiles. The food aligns with National Research Council guidelines, which is very respectable in the industry. The food is also supported by veterinarians.