How Much Should I Feed My Dog? A Complete Portion Guide
One of the most common questions pet parents ask is "how much should I feed my dog?" The answer isn't as simple as following the bag's instructions—which are notoriously imprecise. Here's how to get it right.
Why Bag Guidelines Are Often Wrong
Pet food packaging provides broad ranges based on weight alone. But proper portioning depends on much more:
Following bag guidelines leads to overfeeding for sedentary dogs and underfeeding for active ones.
The Science of Dog Nutrition
Veterinary nutritionists use specific formulas:
Resting Energy Requirement (RER)
This is the energy a dog needs simply to exist: `RER = 70 × (body weight in kg)^0.75`
Daily Energy Requirement (DER)
This adjusts RER based on activity:
Example Calculation
For a moderately active 30-pound (13.6 kg) adult dog:
Signs You're Feeding Too Much
Signs You're Feeding Too Little
The Body Condition Score
Use this simple check:
Ideal Weight (Score 4-5 out of 9):
Underweight (Score 1-3):
Overweight (Score 6-9):
Tips for Proper Portioning
1. Measure Accurately
Use a kitchen scale, not a scoop. "One cup" varies wildly depending on who's scooping.
2. Account for Treats
Treats should be no more than 10% of daily calories. Adjust meals accordingly.
3. Weigh Regularly
Monthly weigh-ins catch weight changes early.
4. Adjust Seasonally
Dogs often need fewer calories in summer, more in winter (especially if they spend time outdoors).
5. Consider Meal Frequency
Fresh Food Portions
Fresh dog food is more calorie-dense than kibble, so portions look smaller—but pack more nutrition. Follow the specific guidelines for your fresh food brand, as calorie density varies.
When to Reassess
Adjust portions when:
The Personalized Approach
Every dog is different. The formulas provide a starting point, but observation is key. Watch your dog's body condition, energy levels, and coat quality. Adjust portions based on results, not just calculations.