Ehh, liquid smoke is def a lot better for you that actually smoking things, because there is a filtration step that removes a lot of the worse Volatile Organic Compounds that make smoke carcinogenic.

You're probably right it's not fantastic though ;p

And damn, idk what i'd do if onions made me ill... I use them in so much. Though i've found some ways of making them do make me feel ill , just i rarely make them that way so.

If you'd rather avoid liquid smoke try using smoked paprika instead. Store bought does the job but if you can find the good stuff at a local farmer's market, it's worth it.