Sometimes when I get a case where the clients has a headache all the time it’s because they are allergic to something they are eating every day. Often it is a component of a seasoning they routinely use and their diet is predictable with very little variety. I use this list to catch any offending agents.

• Accent Meat Tenderizer (contains MSG)
• Adobo
• Alfredo Sauce Mix
• Apple Pectin
• Apple Pie Spice
• Apple Pie Spice
• Apple Wood Smoke Rub
• Bacon Bits
• Barbecue Seasoning
• BBQ Spice
• Beef Bullion
• Blackened Seasoning
• Bouillon Seasoning
• Broccoli Soup Mix
• Buttermilk Ranch Dressing Mix
• Caesar Rub
• Cajun Seasoning
• Cajun Seasoning
• Cavender’s Greek Seasoning
• Celery Salt
• Celestial Seasoning
• Cheese Flavoring
• Chicken Bullion
• Chili Seasoning
• Creole Seasoning
• Curry Rice Seasoning
• Deer Sausage Seasoning
• Dill Dip
• Fajita Seasoning
• Fish Sauce
• Fried Chicken Seasoning
• Grill Seasoning
• Hickory Salt
• Italian Dressing Mix
• Italian Seasoning
• Jamaican Jerk Seasoning
• Jerky Seasoning
• Johnny’s Season Salt
• Lawry’s Seasoning Salt
• Legg’s Seasoning
• Lemon Pepper
• Mesquite Rub
• Mexican Seasoning Mix
• Mint Garden
• Montreal Seasoning For Steaks
• Morton’s Nature Seasoning
• Mrs. Dash
• MSG
• Mulled Spice Mix
• Mulling Salt
• Mushroom Soup Blend
• Non-Dairy Creamers
• Old Bay Seasoning
• Onion Soup Mix
• Pastrami Seasoning (lots of nitrites)
• Pickling Salt
• Pickling Spice
• Pizza Seasoning
• Pizza Toppings
• Popcorn Seasoning
• Poultry Seasoning
• Prime Rib Seasoning
• Pumpkin Pie Spice
• Rice Syrup
• Salsa Seasoning
• Sassy Seasoning
• Sausage Seasoning
• Sazon Seasoning
• Seasoning Salt
• Spike Seasoning
• Spinach Dip Mix
• Steak Seasoning
• Taco Seasoning
• Thai Seasoning
• Thicker Quicker
• Vegetable Broth Bullion
• Vegetable Herb Dip Mix
• Vegetable Soup Blend Mix
• Other Seasonings

Helpful Links and References: 

• MSG: /Diet_Nutrition/msg_sources.htm
• Sulfites: /Diet_Nutrition/sulfites.htm
• Nitrates: /BasicsofHealth/Water_files/waterepanitratefactsheet.htm