“To judge another on [dietary issues] is to usurp God’s role and his authority as judge. We must not take this role upon ourselves. In Romans 14:13 Paul says to not pass judgment on one another any longer. It’s clear, then, that judgment was being passed on one another up to this point. He offers an alternative to judging one another.

[Christians] must decide to never put a stumbling block or hindrance in the way of a brother. Instead of judging one another for whether or not they eat meat that had been offered to idols, they must decide they will never put a stumbling block or hindrance in each other’s way….

This is why he says that the strong must be careful to never put a stumbling block in the way of a brother. Romans 14:15: if a brother is grieved by what you eat, you are no longer walking in love.“

-J-T Richards, https://newcitychurch.org/messages/walking-in-love/