If one thing is certain about this breed, it's that it loves to eat! Owners will need to closely monitor both what they feed their Clumbers--and even more important, how much the dogs consume. This means that the most sensible Clumber Spaniel food choice is the premium dry kind. This high-quality kibble, while more expensive and difficult to obtain, contains balanced portions of animal proteins and carbohydrates, vitamins and minerals, and omega fatty acids--all of which your Clumber will need to maintain its health in the long term. Cheap, generic dog food is not recommended for this breed, because it contains mostly empty "filler" ingredients that don't provide enough nutrients, are harder for the dog to digest, and may even shorten its lifespan if eaten on a daily basis.
Royal Canin, Blue Buffalo, and Taste of the Wild are three recommended brands that carry excellent lines of premium dry food.
The typical adult Clumber, depending on its age, size, and activity level, will need about three cups of premium dry food per day, divided into two meals. Clumber puppies, again depending on age, need a bit less: about 2ΒΌ cups per day, divided into three meals (not two) until six months of age.
For more info on feeding a Clumber Spaniel from puppyhood through maturity, see this chart:
Clumber Spaniel Feeding ChartDog AgeDog WeightFood TypeAmountFrequency2 Months10 lbsDry (Puppy formula)0.3 cups3x/day3 Months20 lbsDry0.5 cups3x/day6 Months40 lbsDry0.75 cups3x/day9 Months55 lbsDry* (Puppy/Adult)1.25 cups2x/day12 Months+70 lbsDry (Adult formula)1.5 cups2x/day*--Around this time, transition to adult food by first mixing in a bit of adult formula with the puppy formula. Over the course of a week, with each meal add a little more adult food to the mixture, until the dog is eating it entirely.
It's especially important for Clumber Spaniel owners to try and stick to the above-listed portions if at all possible. These dogs will happily eat all the food you give them--and they'll likely beg for more! But dogs of this breed are especially prone to obesity, and an overfed, under-exercised, fat Clumber Spaniel will have major joint problems, not to mention breathing and digestive issues and even a shortened lifespan. You can help control your Clumber's weight by establishing consistent feeding and exercise schedules, by not feeding the dog table scraps, and by not leaving food in the dog's bowl all the time, thereby allowing it to eat anytime it wants. It's better to put your Clumber's bowl down only at mealtimes, then pick it up a few minutes after the dog begins eating.
If you're worried your Clumber is overweight, give the dog this simple test: run a hand along its side, and if you can't feel any ribs, it's diet time. Reduce the dog's daily food consumption by one-fourth, and add an extra walk, jog, or play period to its daily exercise schedule.