Should one avoid smoked spices and smoked foods in general?

[Guest guest]

Years ago I had heard that one should avoid smoked foods. I don't know

whether that is due to the type of foods that normally are smoked (such

as meats) or due to the smoked flavor itself. I like to use some

smoked spices, since they add tons of flavor to vegetables, etc. Is

anyone aware of any studies indicating that such smoked flavor is

unhealthy?

Thanks,

-Dave