Encratites were a group of people a long time ago who thought it was not good to eat certain foods and do certain things that many other people did. They believed that by doing this, they were following the teachings of their religious leader, who they thought was very important.
They felt that it was important to be very strict and not do anything that could be seen as bad or wrong, even if many other people did it without any problem. They believed that things like drinking wine, eating meat, and even getting married were all not good things to do.
Some people thought that the encratites were extreme and that they were taking their beliefs too far. But the encratites felt that they were doing the right thing and that their strict way of life would help them be closer to their religious leader and live a better life in general.