Supplements to use while fasting?

I'd like to hear the supplements you guys use for fasting. I'm not going for strict no calorie so even any superfood powder to recommend is greatly appreciated

Answer

I started taking Vitamin D, Biotin and Iron because i was low on iron (checked with doctor) and my hair started to fall. it has been highly recommended in the community. Also upped my protein, veg and fat intake

Answer

I take magnesium, B12, vitamin d, and biotin every night before bed. I also add Lyte show with my water throughout the day.