Pretty much all of us who get into “healthy eating” do it, at least for a while.
It’s an inevitable part of the process. We do judge others by what they eat, and harshly most of the time.
Like when we are in line at the supermarket with our paper goods and light bulbs, and look at what’s in the baskets of the other customers — “Aw, gawd, how can they EAT that junk! And their poor children . . . !”