Thanks! I pull conventional, I'm no good at sumo. I would agree that multi-day fasts would not be good for strength sports. There doesn't seem to be a authorit

Thanks! I pull conventional, I'm no good at sumo. I would agree that multi-day fasts would not be good for strength sports. There doesn't seem to be a authoritative source but LeanGains states you won't lose muscle if you're fasting less than 24 hours. (https://leangains.com/top-ten-fasting-myths-debunked-major-update-nov-4th/ https://leangains.com/top-ten-fasting-myths-debunked-major-u...)