The timeline for feeding your new puppy changes rapidly over the first six months. Learn what and how you should feed your puppy based on the key development milestones she will experience.
Due to breed differences and animal individuality, it is impossible to predict exact dates for a puppy’s growth and development milestones. However, by using the following milestones as a guide for healthy growth, developmental problems can be spotted — and possibly prevented — early on. By knowing these milestones, you’ll also know when your puppy is ready to begin weaning.
| Age | Milestone |
|---|---|
| 7-10 days old | Puppies double their birth weight. Puppies begin to urinate and defecate on their own. |
| 10-18 days old | Puppies attempt to stand. Puppies’ eyes begin to open. Puppies’ ears begin to open. |
| 18-21 days old | Puppies hear and respond to noises. Puppies begin to walk. |
| 3 weeks old | Begin weaning process for orphaned puppies. Puppies begin responsive vocalization. Deciduous (baby) teeth will begin erupting. |
| 4 weeks old | Begin weaning process for mother-fed puppies. |
| 3–6 months old | Puppies’ adult teeth erupt. |
When your puppy is ready to begin weaning (at around 4 weeks for mother-fed puppies and 3 weeks for orphaned puppies), use this step-by-step process:
The entire process should take approximately three weeks.


Dog-food products described as light, lite, or low calorie must meet specific calorie levels set by the Association of American Feed Control Officials (AAFCO), while dog foods named “less” or “reduced calorie” must show a percent reduction in calories as compared to a product in the same moisture-content category. The following table shows the guidelines as set by AAFCO for both dog and cat foods for determining whether a product can use the term “light.”
| Food Texture | Moisture Content | Dog Foods Maximum kcal ME/kg | Cat Foods Maximum kcalME/kg |
|---|---|---|---|
| Dry | less than 20% moisture | 3,100 | 3,250 |
| Semi-Moist | between 20 and 64% moisture | 2,500 | 2,650 |
| Canned | 65% or more moisture | 900 | 950 |
Like light versus reduced-calorie foods, lean or low-fat dog-food products must meet specific fat levels set by AAFCO, and less-fat or reduced-fat dog-food products need to show a percent reduction in fat as compared to a product in the same moisture category. AAFCO guidelines for dog and cat foods with “lean,” “low fat,” or similar words are shown in the following table.
| Food Texture | Moisture Content | Dog Foods Maximum % Crude Fat | Cat Foods Maximum % Crude Fat |
|---|---|---|---|
| Dry | less than 20% moisture | 9 | 10 |
| Semi-Moist | between 20 and 64% moisture | 7 | 8 |
| Canned | 65% or more moisture | 4 | 5 |