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What's my 4-month-old puppy's adult weight and feeding needs?
Updated on September 23rd, 2025
Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 4 months and 3 days old | 18.8 lbs
Pepe is a wired hair terrier/dachshund mix. Can you give me an idea of what he may weigh as an adult? He is now 4 months and is about 12-5 lbs. he lost a half a pound in one week. Should he lose at all at this age? I fostered a few pugs in the past, they were heavy seniors. I am afraid to feed Pepe too much. How many calories should he be getting?
1 Answer
Most Helpful Answer
Answered By Kevin Sanada, DVM
Veterinarian
Published on December 6th, 2017
Based on his current weight, I would expect this mix to be around 30 lbs when he reaches adulthood, but this is a rough estimate. They shouldn't be losing any weight as puppies, but this does happen sometimes when they are in a new environment, or have a medical condition (i.e. diarrhea). I wouldn't be too worried if he lost a little weight, but is otherwise acting normal and appears healthy.
It's good that you are thinking about controlling his diet. I recommend feeding a small breed puppy food to Pepe until he is about eight months old, then he can be switched to an adult food. A good dog food will have the adequate amount of calories calculated into their recommended feeding guidelines (can find this on the bag). If you feed according to that and limit the amount of treats and/or table scraps he gets, then you should be able to keep him from getting overweight.
For more information on feeding Pepe, I recommend you read the article at the link below. This explains what to look for when choosing your food.
https://www.petcoach.co/article/what-to-look-for-when-choosing-your-pet-s-food/
I hope that helps and all is well with Pepe.
It's good that you are thinking about controlling his diet. I recommend feeding a small breed puppy food to Pepe until he is about eight months old, then he can be switched to an adult food. A good dog food will have the adequate amount of calories calculated into their recommended feeding guidelines (can find this on the bag). If you feed according to that and limit the amount of treats and/or table scraps he gets, then you should be able to keep him from getting overweight.
For more information on feeding Pepe, I recommend you read the article at the link below. This explains what to look for when choosing your food.
https://www.petcoach.co/article/what-to-look-for-when-choosing-your-pet-s-food/
I hope that helps and all is well with Pepe.
1Pet Parents found this answer helpful