NET
29 For the one who eats and drinks without careful regard for the body eats and drinks judgment against himself.
Darby
29 For [the] eater and drinker eats and drinks judgment to himself, not distinguishing the body.
KJV
29 For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body.