Food Sensitivities - IgG vs IgE

Friends, let’s talk food again this week.  I know I’ve been blabbing on and on about food sensitivities and inflammation to anyone and everyone - and also in last weeks post.  But I wanted to get a little scientific on this topic for a minute and also share with you my personal results.  


First the science, it’ll be quick and painless I promise.  


Food Allergies VS Food Sensitivities 

Our bodies have two antibodies that are released when something enters the body that it believes is a “poison.”  The one most people will recognize is immunoglobulin E (IgE)- this guy causes a reaction right away.  Think of someone who has a peanut allergy and eats a peanut, right away their body starts to have a reaction.  That’s IgE at work.


The other is Immunoglobulin G (IgG).  IgG is much more subtle than IgE and people live with these reactions to foods for years without realizing that they even have them.  Reactions range from headaches and nausea to depression, anxiety, and hyperactivity, or simply just fatigue, bloating, or mood changes after eating and even dark under-eye circles when you are well-rested.  IgG reactions happen hours to days after a food is consumed.  


OK…Science lesson over! (not bad right?!)


So now that you’re well versed in immunoglobulins, I bet you’re wondering how the heck you’re supposed to know what food is giving you those pesky dark under eye circles or why you’re always tired even though you got your 8 hours in.  All it takes is a little bit of blood (you can keep the sweat and tears) and we send it off to the lab where they take different food substances, spices, molds, and pollens and introduce them to the blood to see if those immunoglobulins show up to the party.  

For fun, these are my lab results so you can see exactly what I’m talking about.  

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These are my IgG results - those pink and red markings are the foods that my blood had a strong immune reaction to.  As you can see, milk does not do my body good!  I did have a feeling dairy would show up the way it did because I just do not feel great after a meal with heavy dairy.  Mushrooms, corn, rice and pecans were all a little surprising…and that little pink bar next to chocolate is still a sore subject! 


If you’d like to chat more about your health and how to improve it, schedule a functional medicine consultation through the website HERE and we can dig deeper.

Dr. Ashley Neumann