How Much Food Does Your Dog Need Per Day? Size-by-Size Guide
Overfeeding is the number one health risk for dogs. Here is the exact formula vets use.
The veterinary formula: Resting Energy Requirement = 70 × (body weight in kg)^0.75. Multiply by an activity factor: 1.0 for average adult dogs, 1.4-1.8 for active dogs, 0.8 for seniors, 2.0-3.0 for puppies. A 50-pound average adult dog needs approximately 1,050 calories per day — about 2.5 cups of standard kibble (at 380 kcal/cup).
Why the Bag Guidelines Are Wrong
Feeding guidelines on dog food bags are typically 20-30% too generous. Manufacturers benefit from you buying more food. Over 56% of US dogs are overweight or obese according to veterinary surveys. The consequence: shorter lifespan (2-2.5 years shorter for obese dogs), joint problems, diabetes, and higher vet bills.
The Body Condition Test
You should be able to feel your dog ribs easily (but not see them). Looking from above, your dog should have a visible waist behind the ribs. From the side, the belly should tuck up behind the ribcage. If ribs require pressure to feel and the waist is not visible, reduce food by 10-15% and recheck in 2 weeks.