Brother, if you are 90% Paleo you are inviting trouble through the 10% gateway. Even though you might not have a celiac diagnosis, there is a chance your body systems are thrown out of whack due to a gluten sensitivity. I'm not talking about a full-blown autoimmune episode like you might see with a celiac, I'm saying that every individual each with his/her unique genotype responds to gluten in a negative way along a spectrum. You might lean closer to the hypersensitivity/allergy end of the spectrum perhaps right beside celiacs.
Moderation seems to be a general rule of thumb when consuming any type of food, except it could be different for you and gluten. Even one small wheat-based cookie could be triggering a low-level autoimmune response where the villi in your intestine are under attack from a small army of WBC's. If this is the case, your rate of absorption of all those wonderful nutrients you pay good money $$ for may be plummeting - your brain biochemistry suffering as a side effect. You need high levels of cofactors and coenzymes to catalyze brain cell reactions where you make amino-acid based neurotransmitters like serotonin and dopamine. If you are lacking in these neutransmitters, your nervous system is handicapped in its regulatory role and your stress hormones like cortisol and adrenaline start to take over the reigns as the endocrine system is also a regulatory system.
Certain nuerotransmitters, like gamma-aminobutyric acid (GABA) actually help control and manage stress-hormone levels.
One cookie might not sound like a huge deal. In fact, for a great many people it is considered moderation and they can get away with it. But do they really get away with it or is there something going on beneath the surface that will manifest as a different set of symptoms at a different point in time?
Gluten is dangerous because it is not what nature wants in our bodies - at all. In my book, it's really not worth the risk, especially for you because of where you might fall on the gluten sensitivity spectrum.
Does anybody have a positive reaction to gluten? I'd like to meet him/her.
Seriously, I'd like to see the science on that but the grain industry is savvy. They are smart about spinning and putting the science on the public. We must prove gluten causes negative reactions in everyone? Who's running THAT experiment? Who's FUNDING it? Forget it.
Perhaps the damage from one cookie endures for up to one month, so if you cheat with gluten even just once per month, you never achieve the optimal balance of all body systems.
Try 100% Paleo, GFCF and see if you can get past this final hurdle that is barring you from homeostasis.
One beer triggers anxiety in me. I can feel it and I'm nowhere close to a celiac diagnosis.