Brooke, Emma was allergic to Missing Link too (got the itchies from it!) so we discontinued it. BUT I use flax oil in their food and haven't had a problem. It doesn't stink like the salmon oil does, and it has a nutty flavor. I like the idea of mixing it in with some applesauce or yogurt would work too-that would be easier for them not to taste rather than trying to put salmon oil in something sweet. You could always try it and see how they do-and if they don't like it you can always use it for yourself!
Just make sure to keep it in the fridge!