You put the bowl down, turn to the sink, and it is empty. Nine seconds, maybe 11. Then your dog looks up as though the meal never happened.
Why adolescent dogs eat like this
A flat bowl of food takes no skill and no time. Eating fast has never cost your dog anything, and in a house with another dog it has often paid.
Appetite in this stage can be enormous, and a dog who is growing, walking twice a day and thinking hard is genuinely hungry. Fast on its own is not a diagnosis.
Safety note
Some mealtime emergencies look like a stomach ache at first. Call your veterinary practice or an emergency clinic immediately if your dog's belly looks swollen or feels tight. The same applies to retching without bringing anything up, heavy drooling, or pacing and being unable to lie down after eating. Do not wait this out overnight, and do not offer more food or water to settle it. Sudden behaviour change warrants a veterinary examination, and pain frequently presents as a change in behaviour rather than as obvious lameness. A dog who has gone quiet and flat after a meal is a phone call today. Large, deep-chested dogs are the ones owners are usually warned about, so ask your veterinary practice what to watch for in your dog specifically.
Change the container, not the dog
Speed is set by how the food is delivered. Every option below turns a 10 second meal into several minutes without your dog having to learn anything.
Scatter the dry food across a towel, a snuffle mat or the lawn. This is the cheapest change you can make and often the biggest.
Use a food toy or a puzzle feeder for one meal a day. A dog working for dinner gets sniffing and chewing time in the same 10 minutes.
Split the ration into 3 smaller servings rather than 1 or 2 large ones, with 20 minutes between them.
Feed wet or soaked food from a licking surface, so the meal takes tongue work instead of gulps.
Feed after a 30 minute rest rather than straight off a walk or a game, and keep things quiet for 30 minutes afterwards.
Do not stand over the bowl
Taking the bowl away, putting a hand in it, or hovering to slow your dog down teaches the wrong lesson. A dog who thinks the meal might be interrupted eats faster, not slower.
Punishment-based approaches are associated with fear, avoidance and defensive aggression, and the bowl is a place you never want either. If your dog already stiffens, freezes or growls when you go near the food, stop and read about food bowl guarding first.
The scavenging half of the problem
A dog who inhales food indoors usually does the same outdoors, and that is the part with real risk. Trash cans, dropped chicken bones, a discarded takeout box, something in the grass at the park.
Pay a hand touch or a name response every time your dog looks up from the ground, so checking in beats scavenging.
Trade rather than reach into your dog's mouth. Two better pieces of food on the ground buys you the thing they have picked up.
Keep trash cans behind a door and counters clear. Removing the rehearsal beats interrupting it 40 more times.
Use a long line in places where the ground is dirty, so you are not relying on a recall while this is unreliable.
Behaviour change is built from management plus reinforcement together, and reward-based methods are what the veterinary behaviour guidance recommends. A bowl your dog cannot empty in 10 seconds is management doing most of the job for you.
Today's version, in one line: scatter tonight's dinner across a towel instead of putting it in the bowl.