Dallen & Def are so spot-on it's great!!!! Read & re-read their post.
Quick story that may help you....
When I first started I got weighed, body-fat percentage taken, etc. That was my 1st meeting with my nutritionist. We set our next appointment for one month down the line.
For one month I biked like mad, weight-trained, swam, played racquetball and kept my calories to about 2,000 per day. I excercised every day and only took one day off. I hit it HARD; I wanted that big double-digit drop and my nutritionist mouth to drop open when I came back in for my follow-up appt.
I came back looking & feeling lighter & leaner. I got on the scale and we found I had GAINED 2.5 pounds. I almost cried, I felt condemned to be heavy all my life. As I prepared to walk out of the office in utter disgust and with all my motivation destroyed....my nutritionist took out the digital body-fat calipers. He began giving me the "nonsense" about how muscle weighs more then fat and quite frankly it sounded like the same way obese woman blame water-retention & thyroid problems for their issues....ya know, an excuse or rationalization. Bottom line: I had dropped 2.8% body-fat in just one month!!!!!! That means I lost real FAT, quite a bit. My apparent gain in weight could only be attributed to muscle-gain and what-not.
For months I continued to see excellent losses in body-fat percentage...and we saw some marginal drops in weight on the scale, but I had several sessions where I'd lose nothing or even gain a bit on the scale. Of course, over time I inevitably loss weight on the scale....BUT the point remains, and to Def's & Dallen's point, the scale is merely a measure of your weight, it won't tell you what's going on in terms of your composition.
DO NOT GET OBSESSED WITH THE 2.13 POUNDS PER WEEK.....it's just not practical and your setting yourself up for catastrophe.
If you really want to see numbers drop on the scale, almost stop exercising altogether and go on the Atkins diet; in no time you too can have that shrunken & emaciated look. You'll drop lean muscle, water, energy, endurance and have that Pee-Wee Herman physique in no time.
Dude...the whole concept & goal behind the "diet" and "losing weight" is really about being healthy and in good shape. The problem we face today is that our measure of success is erroneously determined and measured by the deceptive instrument that merely measures our weight: the scale.
I'd suggest some good education, I like "You on a Diet".
While you may think huge calorie deprivation is turbo-charging your fat loss....it isn't; it's telling your body food is so scarce that it's time to slow down the metabolism and go into survival mode. You need to eat, and you should be eating 5-6 healthy well-balanced meals per day. It's everything D&D said and what you'll find in the book.
If there is one other thing I'd like to share with you (as I've shared with others).....you are young. This is the time to get in shape and enjoy life. I'm 42 and if I could go back in time more then any financial advice or tip, I'd tell and beg myself to get fit. Your appearance, how you feel about yourself and how other perceive you will largely dictate the outcome of your life....and as it turns out, you only get one life to live, make the most of it!
No, no, no.....don't think about it. Just do it.
