I don't care. It's irrelevant to a discussion about the sabbath because it's about eating or not eating. It's not about sabbath worship.
Rom 14:3 Let not him who eats despise him who does not eat, and let not him who does not eat judge him who eats; for God has received him.
Rom 14:6 He who observes the day, observes it to the Lord; and he who does not observe the day, to the Lord he does not observe it. He who eats, eats to the Lord, for he gives God thanks; and he who does not eat, to the Lord he does not eat, and gives God thanks.
The verse you quoted is sandwiched (get it?) between two verses that clearly are talking about eating or not eating. Nine of the 23 verses in romans 14 specifically mention eating or drinking and all of the other verses are supporting or using these verses to make the point.
Who knew!