Pet Care Myths You've Probably Believed (And What's True Instead)

In this guide

Some advice about our pets has been passed down for generations. Not all of it has aged well.

Tags: pet care myths, dog health, cat health, pet myths debunked, responsible pet ownership

Most of us love our pets fiercely, and we want to do right by them. The trouble is, a lot of the advice that gets handed down through families, friends and social media was never actually checked by anyone qualified. Some of it is harmless. Some of it can genuinely hurt your dog or cat.

Veterinary science has moved on a great deal in the last few decades, even if the folklore hasn't caught up. Here are twelve myths worth retiring for good, along with what actually works instead.

1. "You only need the vet when something's wrong."

This is probably the most widespread myth of all, and it's also one of the costliest. Waiting for visible symptoms before booking an appointment means you miss the whole point of preventive medicine. Routine checkups catch problems while they're still small, keep vaccines and parasite treatments on schedule, and give you a proper chance to talk through diet or behaviour with someone qualified. It's far cheaper, in every sense, than dealing with a crisis later.

2. "Garlic wards off fleas and ticks."

Garlic might be a staple in your kitchen, but it's toxic to pets, even in small quantities, and can damage red blood cells over time. The idea that it makes your pet smell unappealing to fleas simply doesn't hold up; pets don't perspire the way we do, so there's no scent trail for the theory to work on. Stick with flea and tick products that your vet has actually approved.

3. "Cats should drink milk."

It's a lovely image, but it doesn't match biology. The great majority of adult cats are lactose intolerant, so a saucer of milk is a fast route to an upset stomach. If you want to spoil your cat with something milky, look for a lactose-free cat milk made specifically for feline digestion.

4. "Crates are for punishing dogs."

A crate should feel like a den, not a cell. Use it as a consequence and your dog will start to dread it, which defeats the purpose entirely. Set it up properly, with bedding, toys and a calm atmosphere, and use it for rest or for times you're out of the house. Never as a penalty.

5. "Dry kibble cleans a pet's teeth."

This one has been around for decades and it simply isn't true for most standard kibble. Pets tend to crunch it just enough to swallow, which does very little for plaque. Only dental diets that carry proper veterinary approval actually scrub teeth as the animal chews. For everything else, brushing and professional cleanings remain the gold standard.

6. "Older pets can't learn anything new."

Senior dogs and cats are entirely capable of learning, and many genuinely enjoy the mental challenge. The trick is adjusting for their physical limits: shorter sessions, gentler movements and plenty of tasty rewards.

7. "Indoor pets don't need flea or tick protection."

Fleas don't need your pet to go outside to find them. They travel in on clothing, shoes, or other animals visiting the house, and once inside they can lurk in carpets and soft furnishings for months. Year-round protection matters even for cats that never leave the flat.

8. "Cats can't really be trained."

Cats are independent, but that's not the same as untrainable. With patience and the right treats, many will happily learn sit, come, or even a high five. Training gives an indoor cat much-needed mental stimulation and strengthens the bond between you.

9. "Harsh training methods get faster results."

Shouting, shock collars and other punishment-based approaches might suppress a behaviour in the short term, but the damage tends to run deep. Pets trained through fear are more prone to anxiety and aggression later on. Positive reinforcement, rewarding what you want rather than punishing what you don't, builds trust and turns training into teamwork instead of a battle of wills.

10. "Brushing your pet's teeth isn't necessary."

It absolutely is. Gum disease is among the most common health problems in dogs and cats, and left unchecked it can lead to tooth loss and even affect the heart or kidneys. A few brushing sessions a week, combined with professional cleanings, goes a long way toward preventing all of that.

11. "Dogs eat grass because they're unwell."

Sometimes, perhaps. More often it's simply normal behaviour; many dogs just enjoy the taste or texture. As long as it's not accompanied by frequent vomiting or an obsessive habit, there's usually nothing to worry about. Just make sure the grass hasn't been treated with pesticides.

12. "A little human food never hurt anyone."

Not true, and this one can be genuinely dangerous. Chocolate, onions, grapes, raisins and avocado are all safe for us but potentially deadly for pets, and even a modest amount can be risky, particularly for smaller breeds. When in doubt, keep the plate to yourself and offer a pet-safe treat instead.

Why These Ideas Refuse to Die

It's worth asking why outdated advice sticks around at all. Tradition plays a big part, since anything passed down through a family feels trustworthy simply because it's familiar. A lot of older pet guides also haven't been updated to reflect newer research. And then there's the internet, where a confident-sounding post can spread far faster than the science that contradicts it.

Separating genuine, evidence-based care from habits driven purely by sentiment takes a bit of awareness, and sometimes a willingness to unlearn things.

How to Tell If Pet Advice Is Worth Following

Before you act on any pet-care tip, it's worth running through a quick mental checklist:

• Is it coming from a qualified vet or certified trainer?
• Is there real scientific backing behind it?
• Does it lean on fear or promise a suspiciously quick fix?
• Does it sound like a miracle cure?

If any of those raise a flag, it's worth pausing and checking with a professional before trying it.

Compassion Backed by Science

Good pet care isn't about clinging to the old ways; it's about doing what genuinely works for your animal today. Evidence-based practices help our companions live longer, healthier and happier lives.

Our pets trust us with everything, from their food to their safety. The very least we owe them is care that keeps pace with what the science actually says they need.

Article content © S Vejay Anand. All rights reserved.