switching a dog from one food to another just like that, produces soft stools, possible vomit, and diarreah....... they stomeches react to that..... why would he lie to you and do that to poor bear......

look what I found about heart shaped kibble:

Usually "rat blocks" look like giant green pellets, but Oxbow makes a "rat kibble" which is heart shaped as well.

I also saw on Royal Canin that they seem to think a heart shaped kibble is useless and pointless to produce, so they don´t do it either....

still looking for possibilities on the heart made one