As suggested above, try some good quality kibble. Always look at the ingredients. Most certainly don't want any by-products. I have found that it helps get my furbabies to eat the kibble by putting just a little water over it. I've heard of using a little no-salt broth. My little ones like no-salt string beans and no-sugar yogurt. Look for natural treats without fillers. JMHO There are dried meats available in the pet stores. I just cut them into tiny pieces for treats. There is a member of this forum that sells Yorkie Yummies. There's been a very positive response to her product.
I just ordered some yesterday. Here's the info:
http://www.yorkietalk.com/forums/sho...d.php?t=110799