The Best Dog Food for Mastiffs (2021 Review)

Mike PowellEdited by: Mike Powell
Abby TexasReviewed by: Abby Texas

Last Update:

The Rundown

Premium Option: Blue Buffalo Wilderness Dry Dog Food
“Give your Mastiff the balanced nutrition it needs with the Blue Buffalo Wilderness Dry Dog Food. Your beloved pet should thrive on this all-natural, supplement-packed dog food that’s high in both protein and fat.”

Best For Heart Health: Wellness Natural Dry Dog Food
“A low sodium count is essential for a healthy heart, and this dog food has one of the lowest around. The Wellness Natural Dry Dog Food isn’t only good for your pet’s heart, it’s also something they would absolutely enjoy.”

Best for English Mastiff Puppies: ORIJEN Puppy Large Dog Food
“ORIJEN Puppy Large Dog Food is especially formulated for large breed puppies such as English Mastiffs. It contains essential nutrients that aid in their growth and early development.”

Check Other Products on Chewy.com

Check Other Products on Amazon.com

English Mastiffs are enormous in body, but they’re also pretty gigantic in personality and the amount of love they have for their humans! 

But to keep that solid wall of a body healthy, it’s important to exercise them regularly and feed them the best dog food for Mastiffs to power them on. 

An adult Mastiff can weigh up to 230 pounds, so you better believe what you feed them is important! 

They’re also prone to heart problems, joint dysplasia, and bloat, so their food needs to do its bit to build up their immune and promote great heart and joint health. 

Our top choice is Blue Buffalo Wilderness. Here are our top 10!

Sources researched
19
Sources researched
Customer reviews
21,354
Customer reviews
Hours spent testing
13
Hours spent testing
Products tested
10
Products tested
Product Name
Best for English Mastiff Puppies
Our Ranking
Ranked #1
Ranked #2
Ranked #3
Thumbnail
Blue Buffalo Wilderness High Protein Grain Free Natural Adult Large Breed Dry Dog Food, Chicken 24-lb
Diamond Naturals Large Breed Adult Dry Dog Food Lamb Meal and Rice Formula with Protein from Real Lamb, Probiotics and Essential Nutrients to Support Balanced and Overall Health in Adult Dogs 40lb
ORIJEN Puppy Dry Dog Food for Large Breeds, Grain Free, High Protein, Fresh & Raw Animal Ingredients, 13lb
Our Grade
Our Rating 93/100
Our Rating 92/100
Our Rating 90/100
Feature 1
High in protein and moderate in fat
Very affordable for a premium quality kibble
DHA and EPA for eye and brain development
Feature 2
L-carnitine and taurine for heart health
Glucosamine and chondroitin for joint health
Biologically appropriate puppy food
Premium Option
Our Ranking
Ranked #1
Thumbnail
Blue Buffalo Wilderness High Protein Grain Free Natural Adult Large Breed Dry Dog Food, Chicken 24-lb
Our Grade
Our Rating 93/100
Feature 1
High in protein and moderate in fat
Feature 2
L-carnitine and taurine for heart health
Buy Now Button
Custom Button
Best Value for Money
Our Ranking
Ranked #2
Thumbnail
Diamond Naturals Large Breed Adult Dry Dog Food Lamb Meal and Rice Formula with Protein from Real Lamb, Probiotics and Essential Nutrients to Support Balanced and Overall Health in Adult Dogs 40lb
Our Grade
Our Rating 92/100
Feature 1
Very affordable for a premium quality kibble
Feature 2
Glucosamine and chondroitin for joint health
Buy Now Button
Custom Button
Best for English Mastiff Puppies
Our Ranking
Ranked #3
Thumbnail
ORIJEN Puppy Dry Dog Food for Large Breeds, Grain Free, High Protein, Fresh & Raw Animal Ingredients, 13lb
Our Grade
Our Rating 90/100
Feature 1
DHA and EPA for eye and brain development
Feature 2
Biologically appropriate puppy food
Buy Now Button
Custom Button

The Best Dog Food for Mastiffs (2021 Review)

1. Blue Buffalo Wilderness Dry Dog Food

Premium Option: Nourishing, with supplements for heart, joint, and immune health

Overall Score85%
Criteria 185%
Criteria 280%
Criteria 380%
Criteria 470%
Criteria 570%

PROS

  • High in protein and moderate in fat 
  • Contains joint supplements 
  • L-carnitine and taurine for heart health 
  • LifeSource Bits for added immune support

CONS

  • Somewhat expensive

The Blue Buffalo Wilderness Large Breed recipes contain everything your healthy adult Mastiff needs. If your Mastiff is active, at the right weight, and free from health conditions, we recommend this as our best dog food for Mastiffs. 

Blue Buffalo recipes contain high protein levels, moderate fat levels, taurine and L-carnitine, and glucosamine and chondroitin, as well as only high-quality ingredients.

click to see more

Balanced Nutrition for Adult Mastiffs 

The ingredient list on the Blue Buffalo Wilderness range begins with a real meat, followed by a meat meal, which accounts for its high protein. This recipe contains 32%, but others range between 26 and 32%. 

Sweet potatoes, carrots, cranberries, and blueberries add a lovely array of vitamins and minerals, as well as antioxidants. 

The 13% fat in this recipe should be adequate for the average Mastiff. The other recipes are roughly the same. Taurine, glucosamine and chondroitin, EPA, and L-carnitine round it out for heart and joint health. 

It comes in a variety of flavors for large breed dogs, which are great for giant breeds like a Mastiff too. If your Mastiff is a picky eater, you can go for the red meat Rocky Mountain recipe, the large breed Salmon, or even a Healthy Weight recipe

Be warned, though – if your big fluff is sensitive to chicken, all of these kibbles contain chicken in the form of chicken meal.

2. Diamond Naturals Premium Dry Dog Food

Best Value for Money: Complete, balanced, and well-priced

Overall Score85%
Criteria 185%
Criteria 280%
Criteria 380%
Criteria 470%
Criteria 570%

PROS

  • Very affordable for a premium quality kibble 
  • Glucosamine and chondroitin for joint health 
  • Diamond Naturals’ proprietary K9 Strain probiotics 
  • Highly nutritious superfoods

CONS

  • Not many flavors available

Mastiffs eat a lot, so you may be looking for something that’s easy on the wallet! Diamond Naturals Premium Dry Dog Food is our best value for money choice, and it’s loaded with goodness for less than a dollar per pound of dog food. 

An adult English Mastiff would benefit from the super quality foods and helpful supplements in this kibble. It’s complete and balanced nutrition.

click to see more

Highly Nutritious 

There are two recipes: chicken and lamb. 

If your giant breed doesn’t deal well with chicken, the lamb flavor has 22% protein and 12% fat, enough for a moderately active English Mastiff to live and lumber around comfortably! The chicken recipe has 23% protein and 13% fat, containing both real deboned chicken and chicken meal. 

Both of them have a variety of fruits and vegetables, some of them highly nutritious superfoods. These bring a range of antioxidants, vitamins, and minerals to your dog’s diet. 

You should know that this isn’t a grain-free dry dog food. It contains brown rice, white rice, and barley, but no corn, wheat, or soy. 

Unlike most dog foods within its price range, it also has glucosamine and chondroitin for strong bones and joints, added vitamins A and E, and L-carnitine for energy regulation.

3. ORIJEN Puppy Large Dog Food

Best for English Mastiff Puppies: Biologically appropriate and puppy-specific

Overall Score85%
Criteria 185%
Criteria 280%
Criteria 380%
Criteria 470%
Criteria 570%

PROS

  • Biologically appropriate puppy food 
  • Above average Omega fatty acid levels 
  • High protein content 
  • DHA and EPA for eye and brain development

CONS

  • No different flavors 

A Mastiff puppy can be classed as either a giant breed or a large breed puppy, but either way, they need a dog food like the ORIJEN Puppy Large Dog Food that will provide everything a big puppy needs to grow up the right way. 

A large breed puppy food needs to contain the right nutrients in the right amounts, so your little big Mastiff doesn’t grow up too fast and end up with brittle bones.

click to see more

Everything a Growing Large, Giant Breed Puppy Needs 

There’s no doubt that a large breed puppy needs slightly different nutrition to a smaller one. Orijen is what’s known as “biologically appropriate” dog food, meaning it’s made with stuff that pups would eat in the wild. 

The ingredient list is superb, consisting of multiple proteins, some muscle meat and some organ meat. Organ meat is wonderfully full of amino acids, boosting the immune system. It also contributes to a rather high protein content, at 38%. Your puppy needs to be active! 

A perfect 1,2:1 calcium/phosphorus ratio will help your puppy grow up at the right pace. EPA and DHA will  give their brain and eye tissue a boost as it develops. Glucosamine and chondroitin give those bones and joints the best start in life. 

It’s also grain-free, and hgh-quality fruits and vegetables increase the vitamins and minerals content.

4. Diamond Naturals Dry Senior Dog Food

Best for English Mastiff Seniors: Easy on the stomach and joints 

Overall Score85%
Criteria 185%
Criteria 280%
Criteria 380%
Criteria 470%
Criteria 570%

PROS

  • More affordable than many senior-specific foods 
  • Keeps aging joints strong with joint support 
  • Added probiotics for digestive health 
  • Lowered calorie count for less active seniors

CONS

  • No other flavors for seniors who get bored with taste 

Senior English Mastiffs have slightly different nutritional needs to a large breed adult. Diamond Naturals Dry Senior Dog Food contain fewer calories per cup, high levels of Omega fatty acids, and enough vitamins and minerals to keep your aging Mastiff tough and happy. 

click to see more

Nutrition for Active Seniors 

The fat count is slightly lowered, while the protein count remains high. This is great for keeping seniors from becoming rolly-polly, but still retaining lean muscle mass. 

Gluten-free grains like brown rice, white rice, and oatmeal provide a decent amount of fiber and Diamond Naturals’ special K9 Strain probiotics soothe the stomach in case of age-related sensitivities. There are no grains containing gluten, so you won’t find corn, wheat, or soy. 

Omega-3 and Omega-6 fatty acids keep your aging English Mastiff’s skin and coat health where it needs to be. Taurine and L-carnitine keep seniors’ hearts strong. 

Another big pro is that there are fewer calories per cup in this dog food (318). For seniors, this is great as it means there’s less chance of overeating and gaining weight, which could contribute to serious health conditions.

5. The Honest Kitchen Dog Food

Best for Extra Calories: Healthy recipes for adding calories 

Overall Score85%
Criteria 185%
Criteria 280%
Criteria 380%
Criteria 470%
Criteria 570%

PROS

  • Variety of recipes available 
  • High in calories 
  • Grain free or with grains 
  • Great for adding moisture to your dog’s diet

CONS

  • No other added supplements 

English Mastiffs need a good many calories per day. If your dog isn’t getting enough, their dog food may be too low in calories. This could be a good way to add some extra calories to their diet. 

Simply feed them a meal or two of The Honest Kitchen Dog Food per day instead of kibble (or as a treat). Each flavor contains close to 500 calories. 

It would also be good for older dogs who can no longer chew kibble, although you’d need to keep a tight rein on calories.

click to see more

Extra Calories, Extra Moisture 

This organic, dehydrated dog food is unusual. It’s not a crunchy kibble. Instead, it’s a smooth, porridge-like meal, filled with nutrition and water. 

Three different flavors allows even dogs with sensitivities to find something they like. This is the whole grain version, but you can buy grain free too. 

This dog food is classified as human grade, which shows just what high quality it is! All you need to do is add water, and your dog will have a delicious meal, and some extra water in their diet. 

No supplements are added, except taurine. This will strengthen your dog’s heart, but if you’re using this food exclusively and not simply adding it to your dog’s kibble, you’ll need to buy separate supplements.

6. Taste of the Wild Pacific Dry Dog Food

Best Without Glucosamine: Well-rounded food for dogs already on joint supplements

Overall Score85%
Criteria 185%
Criteria 280%
Criteria 380%
Criteria 470%
Criteria 570%

PROS

  • High quality protein and fats  
  • Easy to digest ingredients 
  • Antioxidants from fruits and vegetables 
  • Chelated minerals for better digestion

CONS

It may be that your English Mastiff gets separate glucosamine supplements. Or perhaps you want to be able to control how much they receive per day. 

Either way, if you’re looking for the best dog food without glucosamine, Taste of the Wild Pacific Dry Dog Food is what we’ve chosen.

click to see more

Well-Rounded Nutrition Minus Joint Supplements 

Taste of the Wild grain-free dry dog food contains helpful supplements for a dog that’s already on joint supplements. 

The protein and fat counts are great for a large breed adult. They’ll be more than enough to give them energy and keep that impressive muscle mass. 

It’s a bonus that the ingredients in Taste of the Wild are high-quality and easily digestible, like salmon, sweet potatoes, and fish meal. Fruits like blueberries and raspberries add antioxidants, vitamins, and minerals without adding calories. 

There’s some taurine in there for heart health, Omegas for a skin and coat boost, probiotics and chelated minerals for easier digestion, and a whole lot of goodness. As long as you give your dog something to keep their joints strong, Taste of the Wild dog food would be a good choice!

7. Gentle Giants Dry Dog Food

Best Low Protein & Fat: For dogs recommended a low-protein diet 

Overall Score85%
Criteria 185%
Criteria 280%
Criteria 380%
Criteria 470%
Criteria 570%

PROS

  • For dogs who need a lower fat or protein content 
  • Chicken meal as main protein source 
  • Vegetables and healthy grains 
  • Made for giant breeds’ nutritional needs

CONS

  • May not be suitable for dogs who can’t tolerate chicken 

Gentle Giants could be the best dog food for Mastiffs who need a lower protein or lower fat diet. This should only be done on the advice of a veterinarian! 

Gentle Giants Dry Dog Food is made to meet a giant or large breed adult dog’s nutritional needs. It contains everything they need to grow and stay strong.

click to see more

Made for Large and Giant Breed Nutritional Needs 

It can be hard to find a dog food specifically for giant breed puppies or adults. This one, as their very name suggests, is made just for them. 

They understand that dog food for a giant or large breed dog doesn’t need higher protein and fat. This brand is lower in protein content and fat, but both should be alright for a Mastiff who gets relaxed exercise. 

It’s made using chicken meal, easily digested veggies like sweet potatoes, and superfood fruits like blueberries and cranberries. 

You’ll also find joint supplements to keep them strong and flexible, and slightly lower than average Omega fatty acids.

8. Acana Singles Limited Ingredient Dry Dog Food

Best Flavor Variety: Healthy nutrition for picky eaters 

Overall Score85%
Criteria 185%
Criteria 280%
Criteria 380%
Criteria 470%
Criteria 570%

PROS

  • Great nutrients for large breed dog health 
  • Supports a healthy immune system 
  • Good calcium/phosphorus ratio 
  • Added EPA and DHA, making it great for all life stages

CONS

  • Pricey, but not unusual for limited ingredient foods

If you find yourself with a Mastiff who’s a picky eater, it’s possible that he just needs some variety. To provide the best nutrition while allowing for choice can be hard, but Acana Singles Limited Ingredient Dry Dog Food does it. 

We recommend it as the best dog food for fussy eaters! It may be limited ingredient, but it’s not  limited in nutrition.

click to see more

Great for All Life Stages 

Generally, we don’t recommend feeding giant breeds a dog  food for all life stages, as many of them miss important age-specific nutrients. Not this one, though! 

It’s grain-free, has a great protein content, is moderately high in fat, and contains all the additions an English Mastiff may need, at all life stages! 

As well as having multiple proteins and easy-to-digest carbs in its main ingredients, joint supplements, good levels of Omega fatty acids, a perfect calcium/phosphorus ratio, and EPA and DHA… There are also 5 healthy, grain-free, limited ingredient flavors for you (or your dog) to choose from. 

Ingredients like sweet potatoes, pumpkin, cranberries, and kelp give your Mastiff a digestive boost.

9. Eagle Pack Adult Dry Dog Food

Best for Weight Management: Low fat but high quality 

Overall Score85%
Criteria 185%
Criteria 280%
Criteria 380%
Criteria 470%
Criteria 570%

PROS

  • Maintains a healthy weight or facilitates weight loss 
  • Multiple proteins and a good protein count 
  • High but decent calcium/phosphorus ratio 
  • Contains joint support supplement

CONS

  • Lower than average fatty acids 

Mastiffs are prone to weight gain. They’re already big, heavy dogs, and extra weight can do harm to their bodies and joints. 

Eagle Pack Adult Dry Dog Food is our recommendation of the best food for weight management. It can reduce weight if your English Mastiff needs to lose a few pounds, or maintain a healthy weight. Both need to be paired with regular exercise, though!

click to see more

Weight Management for Big Dogs 

The protein sits at 24% in this food, while the fat level is low at 9%. These types of foods work by reducing the fat count, forcing your dog’s body to burn its own, for fuel. 

If you feel this is too low for your dog, you can try Eagle Pack Large/Giant Breed dry dog food. It’s a little higher in fat but around the same for everything else. 

There’s no real meat in this dry food, but pork meal, turkey meal, and chicken meal feature. There also aren’t as many veggies, and no fruits in this dry dog food, unfortunately. 

Omegas and glucosamine round this food off to make sure your giant breed isn’t missing anything.

10. Wellness Natural Dry Dog Food

Best for Heart Health: Low sodium count for a healthier heart 

Overall Score85%
Criteria 185%
Criteria 280%
Criteria 380%
Criteria 470%
Criteria 570%

PROS

  • Low sodium formula with taurine 
  • Good calcium/phosphorus ratio 
  • High Omegas 
  • 417 calories per cup

CONS

  • The whitefish flavor contains no glucosamine 

Mastiff dogs are prone to heart disease, so dog foods for Mastiffs that place emphasis on heart health get a thumbs-up from us. Wellness Natural Dry Dog Food is great for Mastiffs with heart problems,or simply as a preventative measure. It contains everything a healthy Mastiff needs. 

click to see more

Low in Sodium, High in Taurine 

One of the most important things in a heart health food is the sodium content. This one contains 60mg sodium per 100 calories. That’s a great low sodium count. 

Along with guaranteed levels of taurine, this makes Wellness dry dog food great for hounds like Mastiffs. 

Other plusses include being fairly high in calories per cup to cater to a Mastiff appetite, has three high-quality protein recipes, good Omegas, and joint supplements. 

Be aware, though, that the whitefish recipe has no glucosamine in it!


What To Look For When Buying a Dog Food for English Mastiffs 

Protein 

The best food will have real meat, animal protein ingredients. Two or more protein sources is great. Look for deboned chicken, beef, lamb, turkey, or salmon. 

The amount of protein your Mastiff needs will depend on his life stage and weight. We’ll go into detail in the next section! 

Plant proteins are decent as secondary sources. But a dry dog food without animal protein will be lacking in amino acids that are important for a Mastiff to grow in a healthy manner. 

Fats 

Fats are important and easy-to-access energy for your Mastiff. They should be identified (for example, chicken fat, not “animal fat”). 

Up to about 15% is good for a moderately active Mastiff. Puppies and rather energetic Mastiff dogs could do with more; those needing to trim down a little could use less. 

Calories 

Dog foods can vary wildly in their calorie counts. A Mastiff needs a good many calories per day.

As a general idea, a Mastiff needs around 20 calories per pound of body weight per day. That means an adult weighing about 200 pounds will need about 4000 calories a day, give or take a few depending on their activity level. 

Mastiff puppies weighing around 160 pounds need about 3500 calories a day. Seniors will most likely need fewer calories as they begin to slow down and get less active 

The kibble you choose should be fairly high in calories per cup. This means you’ll  have to feed your Mastiff fewer cups per day to reach his calorie goal. 

Micronutrients 

These are the little nutrients that many pet parents don’t even know are important. You should look for: 

  • Calcium and phosphorus, in a ratio of 1,2:1 up to 1,8:1 
  • Glucosamine and chondroitin for joint support 
  • Taurine to promote goo heart health 
  • L-carnitine for energy regulation 
  • DHA and EPA in puppy and senior foods 
  • Added vitamins, minerals, and antioxidants 
  • Probiotics and prebiotics 

Food Irritants 

Things like artificial or synthetic ingredients can aggravate a Mastiff stomach, even if the giant breed dog isn’t prone to sensitivities. 

The best dog foods for these big guys and girls should be free from artificial colors, flavorants, and preservatives. Also, meat by-products should be avoided at all costs. 

Some dogs may not respond well to grains. If your dog is one, going grain-free is a good idea. 


Nutrients for Mastiffs 

Puppy 

The best dog foods for a Mastiff puppy are giant breed formulas. A large breed puppy formula would work in most cases as well. Stay away from “every life stage” recipes, as they often aren’t adequate. 

Giant and large breed puppies tend to grow rather quickly, and the right food will help pace them. The right calcium and phosphorus ratio is the most important thing for their growing bones, as is a dose of glucosamine. 

For a Mastiff puppy, a protein count of 25% to 30% is great, along with a fat count of 12% to 15%. 

You’ll need to see DHA and EPA on the ingredient list for a Mastiff puppy food. If it’s not there, it’s not right! 

Adult 

You can switch to an adult large breed formula when your little one reaches about 80% of his full estimated size, which you can find out from your vet. 

20% to 25% protein is good for the average Mastiff. Slightly more can be quite alright for those who are energetic. 

If your Mastiff is quite chilled, you can get by with a kibble containing 10% to 12% fat. If they’re still fairly bouncy, they can still deal with 12% to 15%. 

The best food for Mastiff adults should also contain all the good stuff, like joint supplements, heart supplements, Omegas, and vitamins, minerals, and antioxidants. 

Senior 

With age, stomach sensitivities can arise. It’s a good idea to choose a grain-free dry food for  Mastiff seniors. 

A lowered fat count could be a good idea for less active seniors. If they can’t burn it off, they’ll end up gaining weight, which could lead to an unhealthy seniorhood. 

Make sure the senior food  you choose contains Omega-3 and 6 fatty acids, glucosamine and chondroitin to keep those joints tough, and contains only premium, easy-to-digest ingredients, like deboned chicken, beef, lamb, or salmon.


Questions & Answers

How Much Should I Feed My Mastiff? 

You’ll need to calculate your own Mastiff’s required calorie intake, by multiplying his weight in pounds by 20. Then, divide that number by the amount of calories in a cup of his food, to get how many cups of food you should be giving him per day. 

Keep in mind, that’s per day, not per meal. Split that number between meals! Keep an eye on your dog. If he starts getting pudgy, reduce it by 100 calories. If he starts looking skinny, add 100 calories per day.

How Should I Feed My Mastiff Puppy? 

Choose a kibble formulated for large or giant breed puppies. A puppy Mastiff needs to be fed 3 to 4 times a day in the beginning, about ¾ cup in each meal. From a few months of age, you can start feeding by weight. There will be guidelines on the packaging of the kibble you choose. 

They grow quickly, so you’ll need to weigh them and adjust portion size every few weeks. At about six months, down them to being fed twice a day. 

Mastiffs can take up to 2 years to reach full size. Consult your vet, and switch your big puppy over to an adult food when he reaches about 80% of his full size.

Do Mastiffs Have Sensitive Stomachs? 

Mastiffs don’t generally suffer from sensitive stomachs, but it can happen to any breed. Some ingredients that dogs often develop allergies to are deboned chicken, beef, lamb, eggs, potatoes, and grains. 

It’s a good idea to pay attention to your dog after he’s eaten to see if he has any digestion upset. If he displays signs of a sore stomach or has diarrhea, it could be a good idea to change his food. 

Choose a different protein source (be careful of hidden chicken ingredients), or go grain-free. Also, kibbles with probiotics and prebiotics can help soothe digestion.


Conclusion 

Your Mastiff needs a bit of TLC when it comes to their food. It’s easy to feed them the wrong thing, so spend a bit of time and effort upfront understanding how their big bodies work and learning why certain foods are good for them and others aren’t. 

Once your Mastiff is on the right food, you’ll know it! They’ll be happy, healthy, and so happy to have their daily meal.