Yes a detox will help. Then drink a laxative tea in the morning or night and DONT Drink the salt water potion although the diet required you to. The concoction is hard to swallow and sort of bringing my stomach content to my mouth, I skipped it and my diet was perfect. When in hunger resort to fresh salad and its okay to add baked potato but not for everyday. Theres always the lemonade diet, Ive never done it but its suppose to work really well. You can lose those 20 pounds in about 10 days of fasting. See site below with quotes by 18 MDs about fasting. 90 days is too long.

Jesus fasted for 40 days. An MD never fasts anyone for more than 50 days.