Nope, they will say youre wrong! Its how they get Christ in them. The Jesus explained the rest.
Matthew 15:17 Do not ye yet understand, that whatsoever entereth in at the mouth goeth into the belly, and is cast out into the draught?
Really now, CynicalBear, do you actually think that Jesus Christ did not know that what He was referring to there was the waste matter, AFTER the benefits of vitamins, and minerals, and proteins, and other bodily health and cell building and sustaining elements were removed from the food, and retained and built into the healthy growing human body?
(Keep in mind, God created our bodies, and knows exactly what our bodies need in the way of healthful nutrients.)
Jesus also knows exactly what we need for optimal spiritual health, including, as He clearly said, His Holy Presence in His Holy Eucharist,and when He speaks about those things, we all should put our sarcasm and skepticism aside, and simply listen to Him and believe Him.)
Funny how Romanists instist on wooden literal interpretations for John 6 but then deny that those who eat, have eternal life.
Whoever feeds on my flesh and drinks my blood has eternal life, and I will raise him up on the last day.
Catholics can only have conditional life at best until death.