Well they do normally say thd hunger goes away in 3 to 4 days, so short fasts will leave you hungry.
However, I am always hungry, a week, 10 days, doesn’t matter. The longest time fasting was 30 days and I was hungry every damn day. So probably won’t work for you either.
I think there is no hunger if you start with a conservative KETO diet (<15g carbs) for a week before your fast. Then enough drinking of just water and electrolytes.
I’ve lots of appetite but not so much hunger. (day 18)