Just tried water fasting for less than a week, about 5 days. I noticed that I lost 3 pounds. It's either that or it's because I took a shit an hour before weighing. I also noticed than my face became slighty slimmer. I'm considering H.I.I.T. because they say it burns fat and helps increase HGH. I'm a student and I go to school 5 days a week so I can slip in 3 running sessions max. I want to lose fat but retain my lifting gains. Any suggestions?