PET42 guide
Why large dogs have different needs
Size affects physical strain, growth, energy needs and everyday life. Understanding these differences helps you support a large dog appropriately.

In this article
Straight to the topic
What many people underestimate - and why size means more than just weight
Large dogs are impressive. They seem calm, strong and confident. But it is precisely this size that brings with it special requirements that are often underestimated in everyday life. Because a big dog is not just a scaled-up small dog – its body works differently, its physical strain is higher and its needs are more specific in many areas.
If you understand this, you can do a lot for your dog’s health and well-being in the long term.
Size means greater physical strain
The bigger and heavier a dog is, the greater the strain on the following structures:
These structures carry that load every day.
Every step, every stand-up and every movement puts more weight on the body. While small dogs often compensate for physical strain without any problems, things can add up more quickly in large dogs.
Typical consequences can be:
This is precisely why it is important to be aware of your dog’s physical workload and everyday routine.
- Joints
- Bone
- tendons and ligaments
- Joint problems
- Movement restrictions
- early signs of wear and tear
Growth: a sensitive phase
The time during puppy and young dog age is particularly crucial. Big dogs grow:
This development differs from that of small breeds.
The problem:
Bones, muscles and joints do not always develop at the same pace. This creates sensitive phases in which the body is particularly vulnerable.
Excessive physical strain, incorrect movement or unsuitable conditions can have long-term effects.
- faster
- longer
- more intensively
Energy demand is not simply “more”
A common misconception is:
It's not that simple.
Large dogs have a higher overall requirement, but:
It is not the quantity alone that is important, but the ratio.
An unbalanced supply can:
- 👉 big dog = a lot more food
- their metabolism often works differently
- Their requirements per kilogram of body weight are usually lower than for small dogs
- That means:
- influence growth
- Increase weight
- Put additional strain on the joints
Weight has a bigger impact
A few extra kilos often makes little difference for small dogs. Things are different with large dogs.
Even being slightly overweight can:
That's why weight control is particularly important for large dogs - not for aesthetic reasons, but for health.
- Put considerable strain on the joints
- Restrict mobility
- increase the risk of subsequent problems
Movement: sometimes less is more
Large dogs need exercise, but not all types of exercise are useful.
The following can be problematic:
Even, calm movement is often much more useful than extreme physical strain.
- frequent jumping
- abrupt stopping
- excessive physical strain during growth
- uncontrolled romping on hard surfaces
Rest plays a bigger role
Due to their higher body weight, large dogs often need:
The body works harder - and needs time to recover.
- longer regeneration phases
- more rest
- stable routines
Everyday life and surroundings
There are also differences in everyday life:
An adapted everyday life can do a lot to reduce physical strain.
- Slippery floors are often more problematic for large dogs
- tight spaces can restrict movement
- Unsuitable resting surfaces can increase pressure points
Typical misunderstandings
Many problems arise not from individual errors, but from incorrect assumptions:
“It’s big, it just needs more of everything”
“He can handle it”
“He’ll grow into it”
Large dogs in particular often show symptoms late. When something becomes visible, it has often existed for a long time.
Why individuality is crucial
There are also big differences among large dogs:
Two dogs of the same weight can have completely different needs. General statements often fall short here.
- breed
- Activity level
- Age
- health
Conclusion
Large dogs bring with them special requirements that go beyond just size. Stress, growth, exercise and everyday life often have a greater impact on them than on small dogs.
Anyone who understands these differences can provide more targeted support and help ensure that the dog remains healthy, agile and balanced in the long term.
Advice tailored to your dog
Find the right food and portion size for your dog
Quantity, composition, activity and individual physical workload play an important role, especially for large dogs. General recommendations are often not enough here.
PET42 creates an individual food recommendation, independent of manufacturers, based on your dog’s details.
Questionnaire, checkout and feeding advice are provided in German.





