This is the part that drives everyone crazy. You feel terrible, you suspect gluten, and your first instinct is to purge your pantry like a detox influencer. Stop right there. If you go gluten-free before testing, your blood work will come back looking like a happy, gluten-tolerant unicorn. The test relies on your immune system firing antibodies at gluten like tiny, angry missiles—no gluten, no missiles.
Doctors call this “eating a gluten challenge.” It sounds like a frat party dare, but it’s basically eating the equivalent of one slice of wheat bread every day for at least six weeks. Some people handle two slices. If you’ve already gone cold turkey for months, you might need to pump bread back in for up to twelve weeks. Yes, you will feel terrible. Yes, it’s worth it to get a clear answer. Just think of it as scientific martyrdom.
