When To Switch From Puppy to Adult Dog Food

switching from puppy to adult dog food

When to switch from puppy to adult dog food can be an unnerving time. Progressing too quickly can cause an upset stomach and stress for you and your dog. Puppies require more calories and protein for growth and their nutritional needs change as they age.

So you’re not sure when or how to switch from puppy to adult kibble. We can help to explain the right time, why you should do so and the best method. This will ensure your puppy is feeling good and you are feeling confident with this big change.

When to Switch Your Dog from Puppy to Adult Dog Food?

It is important to note that every breed will differ in the exact time you should be switching from puppy to adult food. This is largely due to size and breed type. On average, a puppy can be considered an adult at one year of age and this is the time to switch their dog food. However, smaller breeds will grow much more quickly than larger breeds. So some individuals require the switch sooner and some later. You should also consider factors such as their weight and whether or not they are spayed/neutered. As these can too affect when you should be switching your dog from puppy to dog kibble.

Small to medium breeds

The average age to begin switching your puppy to dog food is around one year if they are a small to medium breed. This is because physical maturity can be defined when a puppy reaches its breed’s expected height and weight. A small breed will weigh under twenty pounds at maturity. Whereas a medium breed will weigh under fifty pounds at maturity. An exception to these weight categories are toy breeds. Which usually average at four to seven pounds when they are adults.

Here are some good websites to calculate the predicted adult height and weight of your puppy. You can start switching your puppy to dog kibble when they reach 80% of their adult size. Once you find the predicted weight and height for your dog’s breed, divide this amount by ten and multiply it by eight to find 80% of their adult weight. Once they reach this number, you can start the switch.

The reason you can transfer puppies to adult kibble much more quickly in small and medium breeds is their growth rate. Smaller breeds grow much more quickly than larger because reaching adult size requires less energy as there is less growth. For a toy breed puppy to reach adult size, it will not take as much energy as a Great Dane puppy’s growth. Therefore you can expect it to happen a lot sooner. But how often should you weigh your puppy? We recommend doing so initially once a month. Depending on what age you bought the puppy. Increase the occasions you are weighing your pup to once every two weeks. Then once a week as their weight gains to the appropriate percentage of their expected adult weight.

Large to giant breeds

Large to Giant breeds can often take double the time to reach their mature weight and height. Therefore they are technically puppies for longer. On average it will take a larger breed a year and a half to reach their adult weight and a giant breed two years. These large breeds are often at risk of irregular growth due to an improper diet. This can include moving your puppy onto dog food too quickly. Problems such as joint pain and arthritis can occur. Hence why it is so important to begin switching your puppy to dog food at the right time.

At the beginning of a puppy’s life, they will be taken to the vets regularly for check-ups, shots, and possibly neutering/spaying them. We advise consulting a vet during one of these visits about their advice with your particular large breed pup. As this is from a professional, you can feel confident in knowing you are providing the best care for your dog. Furthermore, they can look at your dog as an individual and give tailored advice and check their growth rate right then and there.

To weigh your puppy we recommend weighing yourself, then lifting your puppy onto the scale with you. Then subtract your weight from the total amount to find their current weight. However, as your large breed puppy grows, this will be more and more difficult. You can take your pup to the vets to have them weighed or order a large scale that your dog can walk onto. The same percentage estimate is given to large dog breeds as small. Once they reach 80% of their expected adult weight, you can begin to switch your puppy to adult food. Here is the calculation again to figure out 80% of your dog’s adult weight. Your dog’s expected adult weight for their breed divided by 10 and then multiplied by 80.

Differences Between Puppy and Adult Dog Kibble

The main difference between puppy and adult food is the protein percentage and calorie amount. This is because growing puppies require more calories for energy in growth and play, and more protein for growth and repair. Their food also has different amino acid and nutrient percentages. For example, puppy food will have one of two strains of Omega 3 known as DHA that is useful to them but not so much to grown dogs.

calories in one gram of protein, carbohydrates, alcohol and fat
To understand why a low carb dog food is good, you need to understand why fats are problematic when your dog needs to get into a calorie deficit.

In puppy food, the average calorie amount in a cup full is 400 calories. Whereas in adult dog food it is usually 300 calories but ranges from 200 – 400. If you monitor your puppy’s behavior, when they are happy and comfortable they will often play and run until they literally fall asleep. An adult dog will know their limits and will rest more than playing or gently exploring and interacting. This is one of the reasons for the higher calorie count. More importantly, though, calories give a dog energy and this is required for growth. Without the correct amount, their growth may be stunted. Furthermore, too many calories for an adult dog can lead to obesity as it is not needed.

Similarly, protein is another resource that a puppy requires a larger amount of than a full-grown dog. Protein is the main tool used for growth and repair. This includes the construction and growth of muscles, bones, ligaments, and even blood. Without proper protein, your puppy will not be able to grow properly. Excess protein in a grown dog, however, can lead to weight gain, kidney and liver problems, and a low immune system just for starters. This is why adult dogs have 18% protein in their diet on average whereas puppies will have between 22.5 and 32% protein in their food. This is another important reason you must gradually switch your puppy onto dog food as the contents are very different.

How to Transition from Puppy to Adult Dog Food

Infographic: introduce gradually the new food to your dog and monitor his health during this transition period. In rare cases, you may have to revert back to the original old food.
Infographic: introduce gradually the new food to your dog and monitor his health during this transition period. In rare cases, you may have to revert back to the original old food.

When you begin switching from puppy to dog food, you want to do so gradually. If you do not do so, you cause the risk of your puppy having an upset stomach, feeling ill and possible vomiting or having diarrhea. To counteract this, you need to gradually mix dog food over the course of a week. Start by mixing one-quarter of the adult food with three-quarters of the puppy food with their daily meals. After a few days, you can begin to mix half of the adult food and half of the puppy food. By day five or six you can mix three-quarters of the adult food to one-quarter of the puppy food. By day seven your pup will be ready for just dog food!

This adjustment period is important, especially if your puppy has a sensitive stomach. But even by gradually switching from puppy to adult food, some things can still go wrong. Sometimes your dog may have an intolerance to an ingredient or certain food type. So you have to find which brand is right for your individual. If you are worried, you can consult a vet and get their opinion.

Can my Puppy have Regular Dog Food?

We would strongly recommend not giving your puppy regular dog food. Puppies have nutritional requirements that adult dogs do not and vice versa. Therefore, by feeding your puppy mature dog food, they are receiving excess nutrients and missing nutrients and nutritional amounts.

Most commonly, puppies will get too small an amount of protein and calories which means their growth will be stunted and their health will suffer. This can lead to joint pains and arthritis. Furthermore, not having the right nutrients can lead to a weakened immune system at best and serious deficiencies or toxicities that can lead to organ failure at worse.

How to Stop Your Puppy From Eating Other Pets' Food?

The best method to stop your puppy trying to eat from bowls that are not theirs is to feed your animals in different rooms. If you have multiple puppies, for example, a litter, try to ‘chain’ feed them. This means feeding one in an isolated room and as soon as it is finished, bring in the next puppy and their meal. Another option is feeding the animals at the same time in different rooms. As then all the individuals will be distracted. However, if for example, you own a cat who will graze and eat throughout the day, move their bowl. Put it on a surface your dog cannot reach or in a room they are not allowed in. Make sure to train them so they do not attempt to reach the bowl or bark at it.

How Much Time Does my Puppy Need to Adjust to New Food?

Similar to switching from puppy to adult food, changing your puppy or dog onto any kind of different food will require a gradual adjustment. It is always recommended to give your dog at least a week to adjust to their new food. This is done by slowly adding some of the new food to the old. Do this until the old food completely replaces the new by day seven.

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