Is it still prevalent among Roman Catholics to believe that Christ's physical body is present in the Eucharist?

Do most Roman Catholics still believe that Christ's physical body is present in the Eucharist, or do most Roman Catholics believe that it is Christ's spiritual presence in the Eucharist? It is difficult to believe that, if one took the bread during communion and physically analyzed it, that physically it would be anything other than bread. It seems that spiritual presence would be sufficient for a sacrament.