The Lord's Table should be regular, observed whenever God's people assemble together as summoned. We are the family of God, and part of this is demonstrated in the fact that we eat together. As I understand the Scriptures, this means weekly communion. Second, the Lord's Table is a feast, not a fast, and is a time for rejoicing and celebration, not a time for afflicting our souls. It is eucharist, thanksgiving. Third, it should be observed with wine that has alcohol in it and bread that has gluten in it. No Christians should avoid those elements on the authority of their own choices or preferences.
Via a great post on food which can be read in full here