Our 3 year old kitty just went into the vet yesterday with fever, lethargy, inappetence (super sudden onset, completely fine on Monday, sick on Tuesday). We did bloodwork and leuk and FIV testing and all normal except WBC highish. Started antibiotic. Acting okay, very tired. Wouldn't eat ALL DAY today so I decided to syringe / assist feed. Grabbed chicken broth (in carton) from fridge, not thinking, blended up probably a teaspoon (no more than) with the food, got 18 ml down him (Hill's A/D). BUT just thought about it and yup, the chicken broth had ONION CONCENTRATE in it. Once of several ingredients that were listed as less than 2% but how could I have been such an idiot???? An already compromised kitty and then I force feed him poison. I emailed the vet, I am seriously hoping it wouldn't be considered a toxic dose, he certainly doesn't need that along with everything else going on. THIS IS ALL SO STRESSFUL.