Gtrsteve tried to explain, but follow on quoters clearly missed it.
I didn't miss it. I'm waiting to hear how you balance all the other nutritional needs while getting 800 or fewer calories a day.
Calories are not the only thing the body needs to run.
Yeah, In - Out will cause weight loss, but there are going to be other problems developing.
How do you balance nutritional needs while living on 800 calories a day? That's easy! It's easy because living on 800 calories a day is absurdly low. Fix your initial plan.
If you're a completely sedentary male between 31-50 years old, you need about 2200 calories a day. 1800 calories if you're a completely sedentary woman 31-50 years old. (
http://www.webmd.com/diet/estimated-calorie-requirement)
- Rather than crash dieting and trying to cut more than 60% of your daily recommended calories out . . . be sensible and make small changes over a longer period of time. Rather than cut 1200 calories a day, cut 200. It might take longer to lose weight, but you won't be putting yourself at risk.
- Alternatively,
stop being sedentary. Being active can substantially increase the number of calories (by more than 30%) needed to maintain your weight. No need to diet at all.
or
Do both. Cut say, 200 calories out of your daily intake while getting some exercise. Over a period of a year, you'll lose a ton of weight without having issues getting enough nutrients and you'll stop being sedentary which tends to have a myriad of beneficial effects. These beneficial patterns you follow will become ingrained as good habits and will pay off a lifetime of dividends.
Woah, three simple and sensible options that have worked for millions of people!
Alternatively, complain about how your hormones are keeping you weak, fat, and sedentary . . . how you eat a perfect diet and exercise, physics is wrong, and your body can create fat out of nothing. I don't care what you do personally. It's only when you try to mislead others with that mindset that I'll object.