overfed mastiff puppy

How Much Should I Be Feeding My 4 Month Old English Mastiff Puppy?

Great Question!

A:  There are so many variables, it’s hard to give a definite answer, but hopefully, I can give you enough information to help you figure this out.

mastiff puppiesThe best way to determine how much your mastiff puppy should be eating would be to ask your veterinarian to calculate how many calories he should be receiving based on your puppy’s age and weight. Most dog foods label how many calories are in each cup of food, so you and your vet can then decide how many cups of food your puppy needs each day. With a giant breed, like a mastiff, you’ll need to be sure to recalculate the totals frequently to make sure you’re keeping up with his growth.

Each dog food brand and type varies in the number of calories and levels of protein and fat, so depending on the food you’re feeding your mastiff, your puppy might require a cup or two more or less than he would if you were feeding a different brand. Most foods come with a recommended feeding chart on the bag. Giant breeds, like mastiffs or great Danes, should never be fed a regular puppy food, so assuming you’re feeding a GIANT breed puppy food (we feed out puppies Eagle Pack Holistic Large & Giant Breed Puppy), check the bag to see the recommended feeding amount based on your puppy’s weight and age. If you want to start out in that range, watch your puppy for the following:

Weight Condition

overfed mastiff puppyAs a general rule, it’s better for giant breed puppies to be on the thin side rather than overweight. This can help prevent several serious bone diseases. You should be able to see the last two ribs and feel the others easily under the skin. If you can see the entire rib cage, your puppy may need to be fed a little more. If you can’t see the last rib or two, cut back a bit.


Overfeeding can cause several bone and joint issues. If you know what to watch for, it’s easy to see the signs and adjust your feeding regimen accordingly. Check for straight bone growth. If your puppy’s toes are starting to turn out, front legs are starting to turn out or look bowed, or the top of his back is drastically unlevel (roached top line), these could be signs of overfeeding or an overage of protein, fat or calcium in your puppy’s diet. Overly knobby joints on the legs or joints that appear to be inflamed are other signs of irregular growth related to diet. If you suspect your puppy may have any of these problems, you should see your vet for a checkup and diet recommendations. If caught early enough, some bone diseases can be repaired and deformed growth may be reversed.

Other Considerations

If you’re using a large number of treats to train your puppy, or if you supplement his diet with fresh or raw foods, you may need to adjust the amount of dog food you’re feeding to compensate for the extra calories. In addition, some puppies are more active than others, so a puppy that runs around all day will require more calories than a pup that is kenneled while you’re at work and sleeps more.

Sharing Is Caring 🙂

About the Author Joycey

All my life I've been in love with one big dopey Mastiff family member after another. No other breed has given so much pleasure, so it's a joy for my team and I to research everything there is to know about them in this blog. We hope you enjoy the reading as much as we enjoy the writing :)

Leave a Comment:

Cody says October 23, 2018

Hello I just got a presa X English mastif 4 months old very sweet pup looking for tips or info thanks !

Danielle says January 15, 2019

Thanks for the tips, are very helpfull for the new owners of Mastiff Puppies. I went trought that same question when I got my puppy and I wasn’t sure about where to look for information.

Henry says January 16, 2019

Informative post same way we can try not to overfeed our selves should be applicable to our puppies. We need to find a balance and only give them calories that are befitting of their ages and weights.

Scott Summers says January 16, 2019

I treat puppies like I treat babies I feed them a lot ha ha. Basically I treat them as people. I miss my Labrador when he was a pup.

Erah says January 16, 2019

Oh no looks like I’ve been feeding my little puppy wrong! Thank goodness I found this blog just in time. I’m very thankful for the informative tips. Cheers dear!

Maury Cheskes says January 16, 2019

Look at that punim! I can see how a careful diet is so important with mastiffs. Thanks for all the info!

Grace K says January 17, 2019

Very helpful. Especially on the aspect of getting the right proportion. Given how big mastiff can grow, it’s better you don’t overestimate.

felly says January 17, 2019

I feed my puppies alot though not so much. I will have to start feeling them less then. Overfeeding has never been a good thing.

Polly Ashton says January 20, 2019

Thanks for these tips. I just got my mastiff last month so these will really help me take care of him.

Yolanda says January 25, 2019

Very informative article. Great tip about adjusting dietary needs dependent upon how active your dog is. The is the same as with people too.

Mike says January 26, 2019

As a rule of thumb I always rely on my veterinarian for guidance on my puppy’s nutrition. Your article will definitely save me a little consultation fee 🙂

Ella says January 28, 2019

I didn’t know that Old English Mastiff Puppies are so cute. I know now what I want for my birthday. Thanks for these helpful tips on how to feed these puppies.

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