I read about the Council at Jerusalem (the first council despite Council of Nicaea):
"It seemed good to the Holy Spirit and to us not to burden you with anything beyond the following requirements: You are to abstain from food sacrificed to idols, from blood, from the meat of strangled animals and from sexual immorality. You will do well to avoid these things." Acts 15:28-29 NIV
In particular on the diet issue, I have 2 questions:
What do you mean blood and strangled meat? Means it undercooked food?
Which doctrinal segments follow this principle today (I say this because I am a Christian / Reformed and we eat undercooked meat).