You’ll need to work up to that length of time, start with 16s-18s, the amount of toxins you’re expelling is overloading your liver and kidney. Food will help move toxins out of the body through solid waste. A colon cleanse using high doses of magnesium citrate will liquify everything in your digestive tract and you’ll likely lose 15-20lbs in a day. Not a bad idea to take activated charcoal the first day, and do the colon cleanse the night before you have a day off, as the first bowel movement will dislodge so much toxic crud in your colon and intestines, that you’ll likely get a “hot/fast” bowel movement that gets that shit out fast, sometimes making people nauseous, dizzy, one friend even passed out for a minute. Activated charcoal will help with the nausea and toxin overload. Just take 12 hours from vitamin supplements, as it will absorb those, too