Picky,sensitive tummy Labrador

Question
I have a 4 1/2 year old Lab.  She is spayed.  She has always had a sensitive stomach but last fall she began to throw up and have severe gastric problems.  It happened 3 times and one time she had to be on an IV.  We aren't sure what caused it but since then she has been on Hill's Science ID canned/dry.  She hates it!  I feed her 3 x/s a day and haved added cooked chicken to try to entice her.  This worked for awhile and now it has become a challenge again.  Especially in the morning when her tummy is the emptiest.  Is there anything else I could add to her diet so that she enjoys eating again???  She loves people food...although I don't really feed her "table scraps", she has had a bite here and there.  Her sense of smell is so good I'm not sure if that doesn't have something to do w/it.  I want to keep her healthy and happy!  I'm worried I couldn't even go on vacation right now for fear she wouldn't eat and make herself sick.
Any ideas would be helpful!  

Answer
If the dog never did eat very well, and has seen the vet since the problem existed, you may be over feeding it. A vet check still won't hurt. Many dogs will snarf down more than is good for them and look for more. Others refuse to eat more than than they need. Evaluate the dog as illustrated in this link, http://www.longliveyourdog.com/twoplus/RateYourDog.aspx  You may want the vet to confirm your judgment. Adjust the dogs food and exercise as needed to reach its ideal body condition. Some German Shepherds and other breeds may refuse to eat enough to completely hid their ribs. As long as you are feeding a concentrated, meat based chow, the best thing is to accept it.

The worst thing you can do is to bribe a dog with rich foods into eating more than it needs. Instead, Put down the dish with what the dog should eat, and give it 15 minutes to eat. Then take it up. Do not give it anything to eat until its next scheduled meal. In a few days, it should be eating what it needs. Continue to check its ribs and adjust the food as needed. This is not easy. I had a Shepherd go 3 days on a few nibbles. I was a wreck, but she was fine. It is almost unknown for a healthy dog not to eat what it needs. Unfortunately, in too many cases, it is less than the package says, and less than the owner thinks the dog should have. Many dogs are quite good at holding out for tastier chow. Like kids, sometimes it calls for tough love.