Boston Terriers eating habits

Question
My 5 year old spayed Boston does not eat her food right away.  She has always been like this, and I worry that her food bothers her stomach.  We have fed her Medi Cal since we got her, and we even swithced to the gastro formula.  Or could it mean that she just doesn't like it?  Once and a while she will throw up foam, but this is before she has eaten.  My three year old Boston is completely opposite.  Could she have some type of intolerance to something in the food?  She generally has solid poops, but she also has runny ones once and a while.  Today she took a solid poop then about 15 minutes later, she threw up foam.

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.