However, neutering does change a pet's hormonal balance, which can cause their metabolism to slow down, reducing their energy requirements by around 30%, whilst increasing their appetite by as much as 25%. This can make neutered pets up to three times more likely to become overweight than an unneutered pet.
Is it normal for my dog to gain weight after being neutered?
If neutered pets are fed the same as intact pets, they will gain weight. Androgens and estrogens stimulate roaming behavior and general physical activity so intact pets are more active. Most neutered pets are overfed and underexercised and are twice as likely to become obese.
Why do dogs get bigger after being neutered?
Studies show that early spay/neuter does affect the growth plate, delaying its closure and causing dogs to grow taller than they should have. This can predispose the dog to later joint problems. This is an excellent topic to discuss with your veterinarian.
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