In the context of Christian communion, the use of wheat flour is actually the traditional and standard ingredient for making unleavened bread. Unleavened bread represents the body of Christ in the sacrament of the Eucharist.
If wheat flour is substituted with regular leavened bread (which contains yeast or other leavening agents) during Communion, it would deviate from the traditional practice and the intended symbolism. However, the specific implications of using leavened bread instead of unleavened bread can vary among different Christian denominations and their respective beliefs and practices.
For example, in the Catholic Church, the use of unleavened bread is mandatory for the Eucharist. The bread must be made from wheat and contain only trace amounts of gluten, adhering to specific guidelines established by the Church. The use of leavened bread would generally be considered invalid or inappropriate in this context.
On the other hand, some Protestant denominations may have more flexibility regarding the type of bread used in Communion. They may use various types of bread, including leavened bread, depending on their theological interpretations and practices.
Ultimately, the significance of the bread used in Communion depends on the specific beliefs and traditions of the religious community or denomination involved. It is advisable to consult with the religious leaders or authorities within your particular faith tradition for accurate information and guidance on the proper elements and practices of Communion.