Read labels. It is frequently used in roasted nuts, which are otherwise a healthy thing to add to your diet.

Chik-fil-a advertises that they use 100% peanut oil and I suspect Jack in the Box uses peanut oil. I don't eat at either one, not even to get salad.

I don't eat at any type of fast food at all and I haven't for maybe 18 months now. If I am going someplace for dinner, I often bring some of my own food, at least a salad or my own dressing. Usually people are understanding about it once I tell them why, My friends already know so it is no big deal to them.

Thanks for mentioning that peanut oil might be in nuts. I eat nuts everyday. I will check the labels.