Really stupid question...

[Taz_Zoee]

I don't think it's a stupid question. Although, I don't have an answer for you.
I have always had to try to get Taz to be smaller and now my vet wants him to gain 1/2 lbs.
Maybe you should ask your vet? They could probably give safe healthy advice.
And I know you love both of them no matter what.

[shepgirl]

Not a stupid question at all but I don't think it's possible to make him "bigger". The size of a dog is predetermined by genes and such unless he was malnourished before you got him in which case proper care and good food could help him gain the maximum weight he should be.
Smaller doesn't mean less healthy. Maybe he was the runt of the litter? If your vet has recommended putting weight on him then there are lots of ways to do that. Before trying anything I think a consult with your vet might be in order.....your dog might be small in stature but huge in heart....

[StarandBratsmom]

If your dog is a normal weight, I wouldn't worry. However, you may try feeding him dog food that helps build strong bones and body mass.

[mr.chiwawa]

Actually I asked my vet the same question about Mister. He was 2.5 just a year ago now he is 4. What they told me to do was up his food intake and do muscle active exercises such as agilty. Running him up stairs things like that. And it does work...Mister didn't get fatter but where muscle weighs more then fat that is where he gained his weight. Hope that helps somewhat.

Oh and Mister says hi to joey