How Much to Feed Your Dog: What the Bag Won't Tell You

The feeding guide on the back of a dog food bag is printed for the average dog. The problem is that your dog is not the average dog. After a couple of years of trial, error, and one genuinely chunky Labrador, here's what actually determines the right portion.

Puppies need more food relative to body weight — not less

Most new owners underfeed puppies because they picture a tiny dog needing tiny portions. In reality, a growing pup may need roughly five percent of body weight in food per day, spread across three or four meals. The tell is the belly: after eating, you should see moderate fullness without any tight, drum-like distension. If the abdomen looks strained, you've gone too far; if the pup is frantically hunting for more ten minutes later, you've gone short.

The catch is that puppies are terrible self-regulators. Leave food down all day and many breeds will eat until they vomit, then circle back for more. A structured meal schedule with measured amounts is the only reliable way to stay on top of it. A puppy feeding bowl with measurement markings on the side helped me more than I expected.

Adult portions are about condition, not just weight

Once a dog is fully grown, the question shifts from "how much per pound" to "how is the dog actually looking?" A dog on a raw or fresh diet may eat only two to three percent of body weight, while a dog burning energy on daily runs might need more. The rule I use: run your hands along the rib cage. You should be able to feel the ribs without pressing hard, but they shouldn't be visible. If you can't find the ribs without significant pressure, the dog is carrying too much weight. If they're visible, too little.

Activity matters more than the bag suggests. A dog who walks fifteen minutes a day is not the same as one doing two hours of fetch. Adjusting in small steps — ten percent up or down — over two to three weeks gives the metabolism time to respond before you overcorrect.

Senior dogs are a different calculation entirely

Older dogs move less, often lose muscle mass, and have reduced digestive efficiency. Many do better with slightly smaller, more frequent meals than a single large one. Protein is the area where I see the most confusion: the old advice to restrict protein in senior dogs to protect kidneys has been largely walked back by veterinary nutritionists for healthy dogs. The kidney-disease protocol applies to dogs who already have compromised kidney function, not as a blanket preventive. A senior dog food formulated appropriately — not just labeled "senior" for marketing — will have adjusted calorie density, not necessarily gutted protein.

What I'd skip

I'd skip the instinct to "round up" portions so the dog seems satisfied. A slightly hungry dog at the end of a meal is a healthy dog. The full-belly feeling we associate with contentment in humans isn't the target for dogs — consistent body condition over time is. I'd also skip buying automatic dog feeder gadgets before understanding what the correct base portion actually is; the gadget just automates whatever error you're already making.

The bottom line: weigh the food for at least the first few weeks rather than eyeballing with a dog food scoop. Check body condition every month. Adjust by no more than ten percent at a time. Those three steps alone will get you closer to the right amount than any chart on any bag.