yes, bread and wine are the required norm
as a rare exception, non-fermented grape juice and specially processed wheat-based bread may be used
Christ Hinself chose wheat bread and grape wine for the Last Supper.
as a rare exception, non-fermented grape juice and specially processed wheat-based bread may be used
Then, if 'wheat-based' is a substitute, one can assume that there is a non-wheat primary content in the wafer used? If so, there should be no problem. Especially since there is 'allowed' substitution for grape-juice for the wine, then there should be whatever option possible made for someone who's life depends on not consuming wheat.
Someone said she can simply drink the wine (or juice) and that should be sufficient for this girls health problems.