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Nutrition

Practical, species-specific feeding answers, from everyday routines and food changes to dog and cat human-food safety.

2 roundups35 guides

Nutrition at House Pet Authority

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35 guides

Dog nutrition

Feeding amounts, diet choices, weight, treats, and transitions for dogs.

15 guides

Best food for senior dogs: what to look for

How a dog's nutritional needs shift with age, what to look for on the label, and why the right senior diet is a conversation with your vet.

Do dogs need supplements? Help vs. hype

Most healthy dogs on a balanced diet do not need supplements. When they genuinely help, when they are hype, and why to ask your vet before adding any.

Grain-free dog food: what the science actually says

A balanced look at grain-free dog food, the FDA and DCM heart disease investigation, what remains unresolved, and why to ask your vet before switching.

Homemade dog food: what to know before you start

Homemade dog food can work, but most recipes are unbalanced. Why calcium and taurine pitfalls matter, and why a veterinary nutritionist should formulate it.

How many treats can my dog have? The 10 percent rule

The vet-backed 10 percent rule for dog treats, how to count treat calories, and how to pick healthy rewards without unbalancing your dog's diet.

How much should I feed my dog

How to size your dog's meals by weight, age, and activity, read a feeding chart, and use body condition score, with vet-backed sources.

How much water should my dog drink

Daily water needs for dogs by weight, the signs of dehydration and overdrinking, and when increased thirst is worth a vet visit, with vet-backed sources.

How to add variety to your dog's diet safely

How to add variety to a dog's meals without upsetting their stomach: a balanced base, safe additions, the 10 percent rule, and foods to avoid.

How to choose the right dog food

A vet-informed way to pick dog food: the AAFCO statement, life stage, WSAVA maker questions, body condition, and when to ask your vet.

How to feed multiple dogs in one home

Feed multiple dogs safely: separate stations, portioning per dog, preventing food theft, spotting resource guarding, and when to get help.

How to help an overweight dog lose weight safely

Safe, vet-guided weight loss for dogs: honest portion control, the right amount of exercise, and how to track progress with body condition scoring.

How to switch your dog's food safely

The gradual 7 to 10 day food transition for dogs, signs of GI upset to watch for, and when to slow the switch down, with vet-backed sources.

How to tell if a dog food is good quality

The WSAVA criteria for judging dog food quality: who formulates it, nutritional adequacy, feeding trials, quality control, and ignoring buzzwords.

Puppy feeding schedule by age: how often to feed

A clear puppy feeding schedule by age, how many meals per day from weaning to adulthood, and why large-breed puppies need extra care with growth.

What human foods are dangerous for dogs

A sourced guide to the human foods most likely to send a dog to the emergency vet, including chocolate, grapes, xylitol, onions, garlic, and macadamia nuts.

Cat nutrition

Practical feeding, hydration, weight, and food-transition guidance for cats.

9 guides

How much should I feed my cat

Portioning a cat's meals by weight and life stage, wet versus dry, obesity risk, and free-feeding versus scheduled meals, with vet-backed sources.

How to choose the right cat food

How to pick cat food: obligate carnivore needs, taurine, the AAFCO statement, wet versus dry and water intake, life stage, and vet input.

How to feed a picky cat: tips that actually help

Practical ways to tempt a fussy cat to eat, how to transition foods for a picky eater, and the appetite changes that mean it is time to call the vet.

How to feed multiple cats in one home

Feed multiple cats without stress: separate bowls and locations, the bowl-per-cat-plus-one idea, monitoring intake, and free-feeding pitfalls.

How to help an overweight cat lose weight safely

Cats need slow, vet-guided weight loss. Why crash diets risk hepatic lipidosis, how to control portions, and safe ways to help a cat slim down.

How to switch your cat's food safely

Cats are wary of new food. The gradual 7 to 10 day transition, why feline neophobia calls for patience, and the GI signs that mean slow down.

Kitten feeding schedule by age: from weaning to adult

A kitten feeding schedule by age, how many meals per day from weaning through the first year, and why kittens need a diet made for growth.

Wet vs. dry cat food: a balanced comparison

Wet and dry cat food both work. How they compare on hydration, the dental cleaning myth, cost, and texture, so you can choose what suits your cat.

What human foods are dangerous for cats

A sourced guide to the human foods most dangerous for cats, including lilies, chocolate, onions, garlic, grapes, and xylitol, with what to do if your cat eats one.

This page is for informational purposes only and is not veterinary advice. Always consult your veterinarian about your pet's diet and health.