<https://www.celiac.com/forums/topic/74797-gluten-challenge/>
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"hi everyone, \n \nJust a quick question... I've read that when doing a gluten challenge you have to eat 3-4 slices of white bread everyday. Just wondering if it has to be white, or if wholemeal/wholegrain/multigrain breads will do.  \n \nAlso, is it necessary for me to do a challenge if I've only been off gluten for 2 weeks, and have a biopsy scheduled for 3 weeks away. I just want to do everything I can to avoid a false negative. \n \nThanks! \n"
<https://www.celiac.com/forums/topic/74797-gluten-challenge/>