It’s fairly common knowledge that as a general rule, Great Danes grow until they are 3. 

They will typically gain height for the first 2 years, and then ‘fill out’ until age 3. 

A lot of people, however, seem to mistake ‘getting fat’ with filling out! 

Great Danes are NOT supposed to be a heavy, weighty breed. Even ‘Euro’ built Danes should be lean and have a defined waist. 


It is around age 2 when many Great Danes have their spay or neuter. 

Spay and neuter causes a shift in hormones that for many dogs also leads to a slower metabolism and weight gain. 

Many people see this happen and assume their dog is ‘filling out’, when really…their dog is just getting fat. 

It’s important to work with your veterinarian following a spay/neuter to make sure your Great Dane stays active and at a healthy weight. 



There seems to be a contest to have the biggest, heaviest Great Dane. 

Excess weight, however is extremely hard on them. 

Most Danes are not built to be 170+lbs. Adding food, satin balls and coconut oil to their diet to ‘bulk them up’ or ‘fill them out’ is extremely unhealthy. 

Most Danes may look lean, but very few actually need help gaining weight. 

Dogs that are kept at a health weight live on average 2 years longer than their overweight counterparts. 

Lean, fit dogs have an easier time playing, walking, running, and getting around.

As a society we are so used to seeing heavy dogs that we may find it alarming to see a dog that has been kept lean and at a healthy weight! 

There is nothing cute about letting your Great Dane get fat.

Overweight dogs are more likely to suffer from:

  • Diabetes
  • Bladder Stones
  • Heart Disease
  • Hypertension
  • Cancer
  • Osteoarthritis
  • Anesthesia complications


In Great Danes, filling out refers to the process of the dog developing breadth/width in the chest and hips, as well as developing muscle mass. 

Neither one of those things has to do with becoming heavy. Good muscle development is extremely important for Great Danes! 

As your Great Dane matures and finishes filling out, you may notice a broader chest and hips, stronger more developed shoulders and larger more defined hip and thigh muscles. 

Their face will mature quite a bit and you may notice an increase on the scale, but that’s not necessarily from fat! 

Keep your Great Dane active. 

Below is a gallery of mature Great Danes that have been kept at a healthy weight.

You may notice that an outline of the ribs may be visible.

They all have a waist that can be viewed from both the side and above. These dogs are active and encourages to explore, run and jump.

***Many people believe that Great Danes should be restricted from exercise as a means to reduce the risk of bloat. At this time, studies indicate that there is no advantage to restricting water or activity, even following meals. 


Genetics really matter when it comes to size! Don’t compare the weight of your Dane to the weight of others. 

Even two Danes of the same weight can look massively different, depending on their body fat ratio, muscle development and overall structure.

Run from any breeder whose focus is on creating the largest, droopiest, heaviest dogs out there.

If they are advertising weights as a means to prove their breeding stock, they may not have the best interest of the dogs in mind.  A healthy, well-bred Great Dane is the Apollo of dogs, and will be large without being uncomfortably heavy. 

Here is a body scoring chart.

Where does your Great Dane fall on this scale? 


  • Choose a high quality, nutrient dense diet
  • Keep dietary fat content at or below 12%
  • Keep your Great Dane active! A short walk each night on pavement is not enough exercise for most dogs to stay lean, fit, and mentally healthy.
  • Free play and exploration on varied terrain (grass, sand, gravel, hills, rocks, etc.) is important for physical & mental health.
  • Tug of war, flirt poles (for dogs age 2+), and hiking can be wonderful ways to bond with your dog and keep them in great shape!
  • Take a FitPaws class with a qualified instructor.


Grab one (or several) of our 5×5 bloat stickers and share them with your Dane friends, veterinarian and dog walker!

The information contained in this post is for informational purposes only. We do our best to present the most up-to-date research, however it is up to the reader to make decisions regarding the health and well-being of their dog. We make no claims here to prevent or treat bloat or any other condition related to Great Danes. Find a veterinarian with GIANT breed experience, and chat with them. 

Some of the products we list on our website contain affiliate links. If you choose to make a purchase, we may receive a small commission for referring you. We only recommend products that we truly believe in. This commission does not affect the price of the product and is used to fund our content and expenses related to operating this website. 

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