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.


Keeping your puppy’s skin and coat healthy is as easy as 1-2-omega-3. Feeding studies have shown that dogs thrive on high-quality animal proteins from chicken, fish, lamb and eggs. IAMS™ ProActive Health™ Smart Puppy Original and other IAMS formulas are made with these highly digestible proteins, which promote excellent skin and coat condition and enhance your dog’s overall health and well-being. When your dog’s coat looks good, the rest of his body will likely be well nourished, too.
Learn more about two important nutrients that can maintain your puppy’s skin and coat health.
Fat plays a key role in keeping your puppy’s skin and coat in top condition. Fat not only provides energy, but it’s also a source of essential fatty acids that are necessary for the skin’s healthy structure. Fatty acids in the diet keep the skin moist and supple. They also contribute to a thick, lustrous and healthy coat. The lack of or imbalance of fatty acids can cause dry, scaly skin and brittle hair. A diet with vitamin-rich fish oils is vital to your puppy’s coat health and appearance.
Although there are many kinds of fatty acids, a few are important to coat health and appearance:
An appropriate balance of omega-6 and omega-3 fatty acids helps maintain your dog’s healthy skin and coat. An optimal range of omega-6 to omega-3 fatty-acid ratios is between 5:1 and 10:1 to enhance skin and coat quality and help nutritionally manage skin and coat conditions.
DHA (docosahexaenoic acid) is a key nutrient found naturally in breast milk and is important for a baby’s neural development. And just like a baby, a puppy’s ability to learn depends on healthy brain development.
At 6 weeks, a puppy's brain mass is approximately 70% developed. At this stage and in the months ahead, feeding your puppy a diet rich in DHA can help support neural development. Premium puppy foods such as IAMS™ ProActive Health™ Smart Puppy provide DHA in their formulas.
