update: Long

[OakLeaf]

Can't have my Clif Bar???

That depends on your level of sensitivity. Clif Bars are free of wheat, yeast, corn and dairy, and I'm fine with them with my garden-variety food allergies. They are (IIRC) processed on shared equipment and not certified gluten-free, so they're not suitable for a challenge diet or someone with celiac, but you may be able to re-introduce them without symptoms.

[KnottedYet]

The oats in Clif bars are killers. There's enough cross contamination with wheat (and some suspicion of oats themselves anyway) that oats can be real trouble.

If you eliminate the bad 4: wheat, oats, barley, and rye (and all their relatives like spelt, etc.) you might want to switch to Clif Nectar bars for a while just to avoid the possibility.

Brigham and Woman's has one of the best celiac/gluten intolerance research groups out there. Great resource for you to either confirm or rule out gluten sensitivity influencing your symptoms!