A Labrador has almost no feeling of fullness and therefore you have to be very careful to keep the food supply tightly closed. It has happened that a ravenous labrador has eaten a whole 10 kg sack of feed. A visit to the vet is of course pre-programmed and many, many heaps, stomach aches, etc.
Unfortunately, they also like to eat things that they shouldn’t eat. Therefore you have to be extremely careful here, especially during the puppy period.