English Mastiff feeding guide: how much and how often
Daily calories, portions by age and practical feeding tips for the English Mastiff.
An adult Mastiff eats less per kilogram than you might think, because it moves slowly and its metabolism is modest for its mass. Many adults need roughly 800 g to 1.1 kg of a typical dry food a day, about 8 to 11 cups, depending on size and activity. Always split this into at least two meals, and three for dogs that gulp.
Deep-chested giant breeds carry a higher risk of gastric dilatation and volvulus (bloat), so the meal routine matters. Rest the dog for about an hour before and after meals, avoid boisterous play right after eating, and use a slow feeder or spread the food across a wide tray if the dog swallows fast. Research on raised bowls and bloat has not produced clear answers, so discuss bowl height with your vet rather than assuming either way.
Keep the water bowl heavy and wide, and put a mat or tray underneath. Mastiffs drink in huge gulps and carry half of it away on their lips, so a towel next to the bowl is a normal part of the setup. Extra weight is especially hard on giant joints; aim to see a waist and feel ribs without pressing.
English Mastiff feeding in numbers
Illustrative adult portions
| Dog | Weight | Calories | Dry food per day |
|---|---|---|---|
| Female, relaxed lifestyle | 66 kg | 2260 kcal | 610 g (6 cups) |
| Female, typical pet | 66 kg | 2580 kcal | 695 g (7 cups) |
| Male, typical pet | 87 kg | 3180 kcal | 860 g (8.5 cups) |
| Male, very active | 87 kg | 3970 kcal | 1075 g (10.8 cups) |
Puppy portions need measured weight, growth stage and the food’s energy content. A breed-average curve is not a feeding plan. Calculate with measured inputs and review the result with your vet.
Bowl capacity
1800 ml
21.5 cm across
Product height estimate
59 to 65 cm
not a veterinary recommendation
Rough drinking estimate
3.9 to 4.6 L
keep fresh water freely available
Adult examples assume midpoint breed weights, neutered pets and food with 370 kcal per 100 g. Cups assume 100 g per cup; actual food density varies. These are not measured breed requirements. Use actual weight, the food label and veterinary body-condition advice.