
My Take Tuesday: What Should I Feed My Pet?
One of the most common questions I get asked as a veterinarian is simple on the surface but surprisingly complicated.
“Doc, what should I feed my pet?”
If only the answer were as simple as the question.
The truth is, there is no universal diet that is perfect for every dog or every cat. Age, breed, activity level, medical history, metabolism, allergies, and body condition all matter. What works beautifully for one pet may not be appropriate for another.
That’s why I prefer to evaluate each pet individually and have a conversation with the owner about the best options. Nutrition is not a one-size-fits-all decision.
At Mountain West Animal Hospital, many of our pets eat well-researched commercial diets from companies such as Purina, Hill’s Science Diet, Royal Canin, and Iams. These companies invest enormous resources into nutritional science, feeding trials, quality control, and veterinary research. There are certainly other good options out there, but these brands remain among the most extensively studied in the world.
When it comes to nutrition, science matters.
The Grain-Free Myth
One of the biggest misconceptions I see today is the belief that dogs should eat a grain-free diet.
Many people assume that if a food contains grains, it must somehow be unhealthy. In reality, grains such as rice, oats, barley, and corn are excellent sources of energy, fiber, vitamins, and essential nutrients.
In fact, several years ago veterinary cardiologists began noticing an alarming pattern: dogs eating certain boutique or grain-free diets were developing dilated cardiomyopathy (DCM)—a serious and potentially fatal heart disease. Research is ongoing, but the association raised serious concerns about diets that substitute unusual ingredients like lentils, peas, and chickpeas in place of grains.
Most dogs do not need grain-free food, and unless a pet has a medically diagnosed allergy—which is actually quite rare—there is usually no benefit to eliminating grains.
In many cases, grain-free diets are marketed more toward human trends than toward canine nutritional needs.
The Pet Food Aisle Problem
If you have ever walked down the pet food aisle of a store, you know how overwhelming it can be.
Dozens of brands.
Hundreds of formulations.
Labels promising everything from “ancestral diets” to “wild instincts.”
Logic might suggest that if a product is on the shelf, it must be safe and nutritionally sound.
Unfortunately, that’s not always the case.
The pet food industry has grown into a multi-billion-dollar marketplace, and marketing sometimes moves faster than science. Labels can be persuasive, but they don’t always reflect rigorous nutritional research.
That’s why veterinarians often encourage pet owners to look beyond the label and consider who formulated the food, how it is tested, and how it is manufactured.
A Few Practical Guidelines
While no food choice is completely risk-free, there are several principles that can dramatically improve your odds of choosing a safe and healthy diet.
1. Choose a brand backed by science.
Look for companies that employ board-certified veterinary nutritionists, conduct feeding trials, and maintain strict quality control standards. The companies mentioned earlier—Purina, Hill’s, Royal Canin, and Iams—have decades of research behind them.
You often get what you pay for in pet nutrition.
2. Be cautious with boutique or exotic diets.
Foods that emphasize unusual ingredients—kangaroo, alligator, lentils, or other novel proteins—may sound appealing, but they are not always supported by the same level of nutritional research.
Exotic ingredients don’t automatically mean better nutrition.
3. Supplements are rarely necessary.
If you are feeding a complete and balanced commercial diet, your pet is already receiving the vitamins and minerals it needs. Adding extra supplements without veterinary guidance can actually disrupt nutritional balance.
Occasional treats are fine—but moderation is key.
4. Fresh and home-prepared diets require expertise.
Fresh, home-cooked, or raw diets are increasingly popular. While some pets do well on carefully formulated homemade diets, most recipes found online are nutritionally incomplete.
If someone truly wants to pursue a home-prepared diet, it should be formulated with the help of a board-certified veterinary nutritionist.
The Bottom Line
More than $100 million is spent each year studying pet nutrition, and the scientific process continues to refine how we feed our animals.
Despite the flashy marketing trends that come and go, one truth remains consistent:
Well-researched commercial diets remain the safest and most reliable nutrition for most pets.
But nutrition is personal. Each animal is unique.
The best place to start is a conversation with someone who knows your pet’s health history and can help guide that decision.
Because when it comes to feeding the animals who share our homes and our lives, guessing is never as good as science and experience.
And that is my take.
N. Isaac Bott, DVM








