Best Dog Food for Mastiffs

A Mastiff weighing 120 to 230 lbs needs roughly 1800 to 3450 calories per day, depending on age and how active they are. Split that into two meals. Use a slow feeder or puzzle bowl to reduce the risk of bloat.

Mastiffs are known to develop Hip Dysplasia, Bloat, Heart Disease. Look for foods that address these: glucosamine and chondroitin for joints, smaller kibble and slower feeding for bloat prevention, and omega-3 fatty acids for overall health.

Mastiffs do well on 22–26% protein. The first ingredient should be a named meat like chicken, beef, fish, or lamb. Skip foods where corn, wheat, or soy is listed first.

Mastiffs are a bigger breed, so keep them on puppy food longer. 12 to 24 months is the usual range because their bones need time to finish developing. Your vet can check growth progress and give you a more exact timeline.

Same as all dogs: chocolate, grapes, raisins, xylitol (check sugar-free gum labels), onions, garlic, macadamia nuts, and cooked bones. Mastiffs can get into things fast, so keep these stored where they can't reach.

Mastiffs live about 6 to 10 years, so they start hitting senior territory around age 7. That's when you might want to look at lower-calorie formulas with joint support and easier-to-digest protein.