I don't think that we are told anywhere what those who didn't agree did after the decision to drop dietary restrictions from their faith in the God of the Old Testament. The Law of God's covenant with Israel his favoured nation, was not to be totally ignored however and the 10 commandments delivered to Moses are  still applicable to all humans here on earth. The Pharisees were mentioned as being totally up in arms at the lifting of their restrictions which put them apart from other believers and they still are to this day..

Dear Lord let not my joy in avoiding sin become my main goal .Let me learn to pray as Jesus taught us with a prayer of the heart rather than the superficialities of words. 

He calls us friends and and performs his supreme sacrifice to show us the way to his friendship. John never stops emphasising the supremacy of love. We are all capable of loving; even soulless creatures seem to love. How do we prove our love? Do we have a cross to be nailed to. Jesus went this far in his Divine Love. Millions of us cannot follow him to a personal Calvary ; although a few have achieved martyrdom: Jesus' yoke for us  is light. We need to keep his commandments and  maintain a love of God knowing that the Father has accepted the sacrifice of his Son and together with the Holy Spirit brings us to  full and faultless humanity in the Glory that has no end.

Dear Lord let my soul be open to the promptings of the Holy Spirit  and love all that you command and have created out of your infinite uncreated being. Let me and all your children follow Jesus to the centre of your loving heart where our knowledge of you means the end of time.