23 pounds in 21 days

I was going to post this as a comment reply, but instead I decided to do a separate post. Also, let me know if I screwed this up somehow.
I recently saw on /r/progresspics someone claiming to have lost 23 pounds in 21 days due to a special diet. I decided to run the numbers.
http://2c3e4o6ijl5odpatzzu5tbnr1q.hop.clickbank.net/?tid=21

• 1 pound = 3,500 calories
• 23 pounds = 80,500 calories
• 80,500 cal / 21 days = 3,833 cal
• To lose 21 pounds of fat in 21 days, you'd need to run a 3,833 calorie deficit per day.
• A female who is 5'6'' and 200 pounds burns about 1,824 calories per day.
• 3,833 cal - 1,824 cal = 2,009 cal
• With no food, you'd need to burn an extra 2,009 calories per day to achieve lose 23 pounds of fat in 21 days.
• That same person would need to run about 13 miles with 8-min miles (pretty fast) each and every day, WITHOUT EATING FOOD, to lose 23 pounds of fat in 21 days.
• Assuming you ate a bare minimum of 1,200 calories per days, this same person would have to run 21 miles with 8-min miles each and every day to lose 23 pounds of fat in 21 days.

I'm not trying to be a dickbag... I just really don't appreciate the "this is why I do so-and-so diet :-)" bullshit as if not eating a carb is going to magically defy laws of physics and biology.
Someone who loses that much weight in that little time is either:

• Lying
• Starving
• Ate a full meal before the first weigh-in, and was dehydrated at the last weigh-in
• A combination of the above
• Able to run nearly a marathon very fast every day on a bare minimum of calorie intake.

Sorry for the text wall. If anyone saw that post and thought that they could lose this much fat that fast, I'd like them to know what is and isn't possible.



if your ready check this source out

http://2c3e4o6ijl5odpatzzu5tbnr1q.hop.clickbank.net/?tid=21

http://www.reddit.com/r/loseit/comments/28srd6/losing_23_pounds_in_21_days_the_math/