Choosing the Right Diet for Your Pet: A Veterinarian’s Guide

Deciding what to feed your pet can feel overwhelming. With so many brands, formulas, and trends available, it’s easy to question what truly matters. At Belle Isle Animal Hospital, we believe nutrition should feel informed, not stressful.

The good news is that choosing a healthy diet for your pet doesn’t have to be complicated. Below is a veterinarian approved guide to help you make confident, practical decisions about your pet’s nutrition.

What Matters Most in a Pet Food?

When evaluating any diet, we focus on three key factors:

  1. Is the food complete and balanced?
  2. Does your pet enjoy it and tolerate it well?
  3. Is your pet maintaining a healthy weight on it?

If all three are true, the specific brand or trend is far less important than many people think.

Which Pet Food Brands Are Best?

Rather than focusing on brand popularity, we prioritize formula quality and nutritional science.

We recommend companies that:

  • Employ veterinary nutritionists
  • Conduct research and feeding trials
  • Maintain strict quality control standards
  • Meet AAFCO nutritional guidelines

It’s important to know that recalls are not always a red flag. In many cases, they indicate a company is actively monitoring safety and responding responsibly.

Some smaller boutique brands may not invest in the same level of research or employ veterinary nutrition specialists, which can lead to nutritional gaps.

Why this matters:

Veterinarians identified a link between certain grain free diets and heart disease (dilated cardiomyopathy) due to taurine deficiencies. Many of these diets lacked proper testing and formulation.

Brands we commonly recommend include:

  • Purina Pro Plan
  • Hill’s Science Diet
  • Royal Canin
  • Eukanuba

Always confirm the food states it is AAFCO approved.

Canned Food vs. Dry Food

Both canned and dry diets can be healthy options.

Canned food benefits

  • Higher moisture content, supporting hydration
  • Often higher protein and lower carbohydrates
  • Especially beneficial for cats, who naturally drink less water

Dry food benefits

  • Convenient and cost effective
  • Crunchy texture may help reduce dental tartar
  • Typically higher in carbohydrates

For many pets, a combination of both works best.

Protein Sources: Does It Matter?

From a nutritional standpoint, the specific protein source is usually less important than quality.

General guidance:

  • Look for foods listing a named protein as the first ingredient
  • Chicken is highly digestible and commonly used
  • Protein allergies do exist, with poultry being the most common
  • Fish based diets (like salmon) can benefit pets with skin sensitivities due to omega 3s

Feeding by Life Stage

  • Puppies and kittens: Puppy or kitten food until about 1 year old
  • Adults: Adult formula from 1 to 7 years
  • Seniors: After 7 years, senior diets may support mobility, brain health, and aging organs

Special Needs and Lifestyle Considerations

Some pets benefit from specialized diets, including:

  • Large breed formulas for growing large dogs
  • Small breed formulas for kibble size and calorie density
  • Performance diets for highly active dogs
  • Indoor cat formulas for lower activity levels
  • Reduced calorie needs after spay or neuter
  • Prescription diets for medical conditions, when recommended by your veterinarian

Raw Diets and Home Cooked Meals

At Belle Isle Animal Hospital, we do not recommend raw diets.

Risks include:

  • Difficulty balancing nutrients properly
  • Bacterial contamination
  • Parasites
  • Risk to both pets and people

Home cooked diets should only be used if formulated by a veterinary nutritionist.

How to Switch Foods Safely

Always transition slowly over 7 days:

  • Days 1–2: 25% new, 75% old
  • Days 3–4: 50% new, 50% old
  • Days 5–6: 75% new, 25% old
  • Day 7: 100% new

This helps prevent digestive upset.

Feeding Schedule and Portions

We recommend:

  • Measured meals
  • Feeding 2 to 3 times daily

Free feeding is discouraged because it contributes to obesity and makes managing medical diets more difficult.

Portion needs vary based on breed, age, activity, and health. Food labels are a starting point, but adjustments should be guided by your veterinarian.

Treats and Chews

  • Limit table scraps
  • Choose treats with benefits such as dental chews or joint supplements
  • Use training treats in moderation

There is no single perfect food for every pet, but there is a right food for your pet.

If you’re unsure what diet is best, the team at Belle Isle Animal Hospital is happy to help you make a personalized nutrition plan based on your pet’s needs. Healthy nutrition today supports a longer, happier life tomorrow.