in this text Paul not say It is regarding the connextion between food and day. If so the verse Will be If one Eat certain food oN certain day that fine, If one Eat AS every day alike that's fine
What you are doing now is hold to one verse by ignore all the chapter CONTEXT and the context my friend is talking about food eating or not eating (fasting) in connection to days dedicated to the Lord for fasting of food offererd to idols as shown above going through each scripture.
We looked at each scripture and NO SCRIPTURE even mentions God's Sabbath or the 4th commandment. It is only talking about juding others in relation to food and days dedicated to God. There is no mention of abolishing anything in the whole Chapter.
If you believe it is not true then please who me where Romans 14 is talking about God's 4th commandment when the Sabbath day is not even mentioned in the whole book of Romans?
If you cannot do you think you are building on the sand? How will you explain to God on Judgement day that you broke his 4th commandments when it does not say anything in the book of Romans about not keeping God's Sabbath a Holy day?
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God's 4th commandment is one of the ten (Exodus 20:8-11) If we knowingly break it when God asks us not to we stand guilty before God of committing sin (James 2:8-12). If we do not seek him in repentance and forgiveness we are in danger of the Judgement (Hebrews 10:26-27)
There is not one scripture in ALL of God's WORD that says God's 4th commandment is now ABOLISHED and we are now commanded to worship God on Sunday in it's place.
Sunday worship is a tradition and teaching of man that has lead many to break the commandments of God. Jesus says that if we follow the traditions of man that break the commandments of God we are not following God (Matthew 15:3-9)
In times of ignorance God winks at but now calls all men every where to REPENT for the KINGDOM of HEAVEN is at HAND (Acts 17:30-31)
Hope this help.......