male. 25yrs old. 215lbs. 14% body fat. lift weights 4 times week. not much cardio. do bike a lot though in summer. went on 6 week extreme diet. got down to 190lbs. looked ok i thought. did not check BF. over the next 6 months i went back to regular weight. am 215 again. i think most of weight loss was water. some fat, some muscle. i think a super fast diet is misleading. not really true fat loss. does my theory sound right?