I think the term "Starvation" gets thrown around a lot when it comes to rapid weight loss.
I started on April 1, 2013 with a weight of 343 lbs. I've been on a 650-900 calories a day since, and as of this morning I weighed 282.3 lbs.
That's 60.7 lbs. in 73 days and counting.
If you restrict your calorie consumptions you must get your vitamins from elsewhere, or you will end up drained of energy and quitting the diet.
It's not just about the low calories, it's also about what type of food you eat. Not all vegetables are good for you during weight loss, such as carrots, corn, eggplant, okra...and list goes on. None of these items will allow you to lose weight when you are on a consecutive low-calories diet.
Also weight loss plateau happens and "zigzag calories" and "diet cheat days" will help boost your metabolism, and allow you to break through. Since I started I've done only 2 diet cheat days.
I'm on crazy plan to lose weight
April 01, 2013 = 343 lbs.
May 01, 2013 = 313 lbs.
June 01, 2013 = 290 lbs.
July 01, 2013 = 273 lbs.