I have been using chef paul spices - meat magic & poultry magic & seafood magic.
It says no additives, gluten or msg on their website, but I am also allergic to eggs, milk, soy.
I get a heavy/bloated/full stomach felling for several days after using it.
I am not sure if it's that or sweet baby ray's BBQ sauce. (I am a big BBQ fan, meat eater)
I would almost BET it is the BBQ sauce. Annies naturals has a gluten-free BBQ but its not tasty and not soy free. The only sauce I have found (and we by the gallon and cook with it because its GREAT) is Daniel's BBQ Sauce. Daniel Hipster is a small but first prize winner of competions at the American Royal BBQ contest. If you like hot and spicy the orginal may be good but the Compettion is a certified gluten-free, also free of your other allergens. (We use honey and orginal to make a french sytle salad dressing..my son made it himself but for meet we only like competition) His email is firstname.lastname@example.org and HIS resteraunt location (he has other locations he franchised) is in Eudora Kansas. I know he can sell online but I just dont have the information at hand. Good Luck!