Disordered eating isn't about the eating. It's about the thought process and obsession behind it. So the thought process you described is similar to orthorexi

Disordered eating isn't about the eating. It's about the thought process and obsession behind it. So the thought process you described is similar to orthorexia except the feeling of guilt is more powerful so it has a more powerful effect on behavior. For instance missing loved ones birthday's and avoiding go outing much at all in order to make sure you only eat the healthy food.