underweight-but appears healthy

Question
I have a two-year-old white german sheperd.  We have had blood work done to determine why he is so thin.  The lab work came back negative, but Nikko is still underweight. We try to feed Nikko 5 cups of Pro Plan a day, but he is a very pickky eater.  Sometimes he'll take a couple bites and not eat for the rest of the day.  We have tried stirring in can food. This helps a little but, he still doesn't eat as much as he should.  We have spent over 500.00 dollars trying to get him healthy and cannot afford any more vet bills.  Is there a pill that I can buy over the counter to help increase his appetite?

Answer
Hi Kerry,  Have you tried switching to a different food?  I would switch to something else and also try putting warm water on it.  That tends to bring out the scent better of the food, which can entice them to eat more.  Also feeding when it is cool also can help, especially if you are in a hot climate.  Even if it is late at night.  There is no pill that will increase their appetite unfortunately.  Hope this helps,

Dawn