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MyPetGuid

Dog Food & Nutrition

Most feeding questions come down to three numbers and one habit: the calories your dog needs, the calories per cup in the bag you actually bought, the share of the day going to treats — and a hands-on body-condition check every few weeks. The guideline printed on the bag is a starting point calculated for an average dog, not a prescription for yours.

Start here

  • Feed the dog in front of you, not the bag. Portion charts assume an average adult at an average activity level; adjust from what you can feel over the ribs.
  • Compare calories per cup, not price per bag. A dense food costs more per bag and often less per day.
  • Treats belong inside the daily calorie total, not on top of it — roughly a tenth of it, subtracted from meals.
  • Change foods across a week or so. An overnight switch is the most common cause of the diarrhea people then blame on the new food.
  • Memorize the genuinely dangerous human foods before someone in the house shares a snack: grapes and raisins, xylitol, chocolate, onions and garlic, macadamia nuts.

Buying guides & comparisons

Learn

18 guides on food & nutrition, grouped by what you're trying to work out.

How much to feed

Portion sizes, calorie math, meal frequency, and how to tell by eye and by hand whether you have it right.

Choosing a food

Reading the label, what AAFCO statements mean, wet versus dry, and which marketing claims are regulated.

Can dogs eat that?

The safe list, the dangerous list, and sensible portions for the foods that fall in between.

Puppy, adult & senior

What changes at each life stage, when to switch, and how large-breed growth differs.

Feeding problems

Fussy eaters, food allergies, weight gain, and the appetite changes that are a vet call rather than a preference.

Gear for food & nutrition

Researched picks from the categories this section covers.

What to know about food & nutrition

What to feed, how much, and which foods are actually worth buying — from kibble comparisons to what's safe to share from your plate. Most feeding questions come down to three numbers and one habit: the calories your dog needs for its weight and activity, the calories per cup in the specific bag you bought, the share of the day's total going to treats — and a hands-on body-condition check every few weeks, which catches gradual weight gain long before the scale conversation at the vet does. The feeding guideline printed on a bag is a starting point calculated for an average dog, not a prescription for yours; adjust from what you can see and feel over the ribs. Food changes belong on a gradual schedule rather than happening overnight. And the human-food question has genuinely dangerous answers as well as harmless ones — grapes, raisins, xylitol, onions, and chocolate are the ones worth memorizing before someone in the house shares a snack.

Food & Nutrition questions owners ask

How much should I feed my dog each day?

Start from the calories your dog needs for its weight and activity, then divide by the calories per cup printed on your specific bag — that number varies enormously between foods, which is why cup counts do not transfer between brands. Recheck the portion against a hands-on body-condition score every few weeks and adjust from what you feel, not from the chart.

Is grain-free dog food better?

Not by default. Grain allergies are uncommon in dogs, and the FDA has investigated a possible association between some grain-free diets and dilated cardiomyopathy without reaching a settled conclusion. Unless your vet has diagnosed a specific grain sensitivity, there is no general reason to pay for grain-free.

How do I switch my dog to a new food?

Mix the new food into the old over about a week, moving from roughly a quarter new, to half, to three quarters, to all of it. Slow down if stools loosen. Dogs with sensitive stomachs may need two weeks.

Which human foods are dangerous for dogs?

Grapes and raisins, xylitol (in sugar-free gum and some peanut butters), chocolate, onions and garlic, macadamia nuts, alcohol, and cooked bones that splinter. If your dog has eaten any of them, call your vet or an animal poison-control line immediately rather than waiting for symptoms.

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