The whole show wasn’t about him trying the food. It was about disordered eating (which is different than eating disorders as they explained). People like you have just chosen to take one small clip of it and present it without context. In this segment there were two women who have spent their lives eating almost nothing but potato and bread sitting beside Anderson. They had all been asked to sample some new things, but Anderson was the only one willing to do it.

He can’t stand hot beverages of any kind. He’s said so a lot of times, so I’m not surprised he hasn’t had coffee.