Psilocybin: why increased appetite?

Unlike the majority, I have a greater appetite on MD days, but I won’t just eat anything. My appetite is for healthier things like salads, smoothies, chia seed puddings. Although I’ll still eat ‘junk’ like chocolate hours later in the evening…

Anyway, from what I read it seems it’s way more common to have a loss of appetite. So why for others like myself the appetite/desire for food actually increases?

What causes that/what does it mean???