48 hour fast

Hi looking for some advice

Looking to start a 48 hour weekly fast starting at 5pm Friday night and ending Sunday 5pm

For some background I am 6ft 13.5 stone Weight lift x2 MMA x2 Boxing x1 Sauna x3-5

Currently doing 2 meals a day and hitting all my macros and calories

Not fasting for any weight loss reason. Mainly my reason for fasting are I feeling amazing (mentally) when doing so and for the health reason (autophagy)

I would do 48 hours every month or so but really wanted to try 48 hours every week

Any advice or reason not to