Puppy Nutrition 101: What to Feed, When, and How Much
Puppyhood is the most nutritionally critical period of a dog's life. Rapid growth, bone development, and immune system maturation all depend on getting nutrition right during this phase. The decisions you make in the first year have consequences that last the dog's lifetime.
AAFCO Growth Requirements
Foods formulated 'for growth' or 'for all life stages' meet AAFCO's Nutritional Profiles for puppy nutrition. Foods labeled 'for adult maintenance' do not meet puppy requirements and should not be the primary diet for growing dogs. Check the AAFCO statement before purchasing any food for a puppy.
Key puppy-specific requirements: higher minimum protein (22% dry matter basis vs 18% for adults), higher fat (8% vs 5%), and specific calcium-phosphorus ratios critical for bone development.
Large Breed vs Small Breed Differences
This distinction matters enormously and is often overlooked. Large breed puppies (adult weight over 50 lbs) have specific calcium and phosphorus requirements that are DIFFERENT from small breeds. Excess calcium in large breed puppies has been directly linked to developmental orthopedic disease including OCD (osteochondritis dissecans) and panosteitis.
Large breed puppies should eat food specifically formulated for large breed growth. Not regular puppy food. The calcium content should be 1.0-1.8% dry matter (not higher). Foods designed for all-breed puppies often have calcium levels that are too high for giant breed dogs specifically.
Small and medium breed puppies can generally do well on standard puppy formulations without this concern.
Feeding Frequency
8-12 weeks: 3-4 meals per day. Small stomach capacity and high caloric needs relative to size require frequent feeding. Going longer than 4-5 hours without food can cause hypoglycemia in very small breeds.
3-6 months: 3 meals per day. Growth rate is at its peak, energy requirements are high.
6-12 months (small/medium breeds), 12-18 months (large breeds): 2 meals per day acceptable for most puppies.
When to Switch to Adult Food
Small breeds (under 20 lbs adult weight): 9-12 months. Medium breeds (20-50 lbs): 12-14 months. Large breeds (50-90 lbs): 14-16 months. Giant breeds (over 90 lbs): 18-24 months. Switching too early deprives the puppy of growth-formulated nutrition during active bone development.
Browse the life stage collection for puppy-appropriate options and our freeze-dried raw options that are formulated for all life stages including growth.