Why was Paul addressing foods? In
Acts 16 they dealt with food issues because of the Jewish believers. Jewish believers kept the law and all the Holy Days.
That appears to be what Paul is addressing
Rom 14:1 As for the one who is weak in faith, welcome him, but not to quarrel over opinions.
Rom 14:2 One person believes he may eat anything, while the weak person eats only vegetables.
Rom 14:3 Let not the one who eats despise the one who abstains, and let not the one who abstains pass judgment on the one who eats, for God has welcomed him.
Rom 14:4 Who are you to pass judgment on the servant of another? It is before his own master that he stands or falls. And he will be upheld, for the Lord is able to make him stand.
Rom 14:5 One person esteems one day as better than another, while another esteems all days alike. Each one should be fully convinced in his own mind.
Rom 14:6 The one who observes the day, observes it in honor of the Lord. The one who eats, eats in honor of the Lord, since he gives thanks to God, while the one who abstains, abstains in honor of the Lord and gives thanks to God.