Does satiation goes down as time passes?

[user2015830]

I heard hunger will go down, does anyone know how fast will it go down?
And does satiation go down as well? Or does satiation stay forever?

[TeckXKnight]

Satiation seems to go up and down based on the different foods that you eat. I haven't seen my satiation move passively over time but I also won't watch it non-stop. Hunger is time based and each level of hunger has a different speed. From what I've heard going from 25% to 50% FEP gains takes 15 minutes while going from 200% to 300% FEP gains takes 9 days.