26F 148lbs.
Really wanting to attempt a lengthier fast but wasn’t sure if that was safe with my job.
I’m a delivery driver and heavy lift 8 hours and walk 4 miles on average per day.
I can confirm it’s possible because I see it during ramadan. These were skinny guys doing all-day intensive labor in full summer heat without water. Caveat is they prep for it as it’s only sunrise to sunset. Know your limits, make sure someone is checking on you frequently. First time do it on a long weekend when you’re not driving. Good luck
How long have you fasted so far? If you’ve only tried 24 hour fasts in the pasts, and haven’t had too much trouble while working, then I would see if you can do the same with somewhat longer fasts.
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I’ve found that I can still exercise quite well several days into a fast. After about the 4th or 5th day I consciously begin to reduce the strenuousness of my exercises. My longest fast yet though is only about 7 days. But hopefully this can give you some perspective.