That sucks you had 2 of the pups die. It does make one wonder, as I have fed this oil for yrs with no problems and my pup had been on it since she was 7 weeks old. I give it maybe 5 times a week and it certainly looks like a very high grade oil with good color to it. I also know a number of dog people who feed it too. I have no idea why your pups got sick on it but I can see why you would not feed it again. How did they act when they got sick? Could they have gotten into anything else to make them sick?