What happens when you don't eat at all?

WHAT HAPPEND IF I DONT EAT ?WILL I LOSE WEIGHT ?

I've fasted for 28 days (no food, or drink), but I did drink lots and lots of water, without water you die pretty quickly. I've also fasted for 21, 14 and 7 day fasts. My reasons were purely health related. I did lose a LOT of weight too.

People fasting for religious reasons generally eat a night or sundown, which is not really a fast in my book. Some religious fasters go all the way however, but really very few.

As @filletofspam said, fasting is a natural thing. Animals do it when they are sick. Its really a great cure for a bunch of things. It once and for all fixed my psoriasis, and a bunch of other things too.

However, its not for everyone. If you're sick, or on medications, you have to get off them first. Unless you know what you're doing, fasting should be supervised by a medical professional. And if you do not come off the fast correctly, it is all but wasted effort.

I would encourage people to try fasting, but for God's sake, do your research first. At least read a couple books of something before you jump into it.

When you do not eat, your metabolism gets slower meaning that it holds onto every single fat cell in your body (starvation shock mode). You will not lose weight by doing this unless you do this for more than a week. BAD IDEA THOUGH!
It is unatural for your body to go into starvation mode.
If you really want to lose weight, work out, eat smaller porportions, and eat healthy.
If you eat smaller porportions it will help you lose weight more effectively without the shock.

When you don't eat anything it is called a fast. In fact, the name of our morning meal breakfast comes from 'break fast.' This is the meal that breaks the fast you started before going to bed.

People fast for various reasons. Some people fast for their religion, some to loose weight, some fast because they think it is healthy. Some doctors have reported success using fasts to treat high blood pressure.

Healthy people can usually survive a fast with no harm though it can be dangerous for people with certain disseases or medical conditions.

It is true that when you fast that your metabolism slows down. This is its natural responce. Your body doesn't know you are intentionally fasting; it assumes that food is scarce so it tries to survive on your reserves as long as it can. You will also loose a great deal of water weight as you burn muscle glycogen since glycogen binds with water. I find that even after I gain back the water weight I loose about 1 lb./day on a fast. I've never fasted over 7 days though some people go much longer. You should have a thourough physical before fasting and if possible fast under medical supervision.

I don't believe that fasting is unnatural. Throughout human history it was rare that we had 3 square meals a day; we ate when there was food and we survived when there wasn't. Our bodies have mechanisms to help us survive when food is scarce so it must have evolved for a reason. Fasting is stressful ot the body so it shouldn't be entered lightly though.

Ya. I concer with econsult1, fasting could be ok I guess as long as it is supervised. I've fasted before as a religious purpose for 40 days and 40 nights...it didn't turn out so well, but every one is different.
In my opinion though, I do not think fasting should be used as a weight lose objective, it remindes me of my anorexic days.

Metabolism slows down gradually, insulin sensitivity increases, protein efficiency increases by 160%, growth hormone increases, glucagon increases, insulin decreases, toxins are released through the kidneys at an aggressive rate, digestive system is strengthened, the blood-brain barrier is opened, reduction of oxidative damage and increased cellular stress resistance. These positive results will be reversed if you do not eat for a prolonged amount of time (more than 7 days).

Check out these scientific and nutritional journals for more information.

http://jn.nutrition.org/cgi/gca?sendit=Get+All+Checked+Abstract%28s%29&SEARCHID=1&FULLTEXT=intermittent+fasting&FIRSTINDEX=0&hits=10&RESULTFORMAT=&gca=nutrition%3B133%2F6%2F1921

http://www.ajcn.org/cgi/gca?allch=&SEARCHID=1&FULLTEXT=Intermittent+fasting&FIRSTINDEX=0&hits=10&RESULTFORMAT=&gca=ajcn%3B81%2F1%2F69&gca=ajcn%3B25%2F1%2F41&allchb=

u collapce just put it this way I;m like that now it happened 2 me2dya and my sugar is low
xxx

of course you will lose weight...then you die.

This is puting it in simple terms. If you stop eating your body willeat away all your body fat and then it will slowly eat away at every thing else. I dont know about you but that sounds horibale to me.

duh you die. (laughing) bet you woun't try that again

I've been fasting for eight days just drinking Juice and Water, I've lost 7lbs and it's fat that's burning away. I also do a little upper body and stomach exercise every morning and night, The exercises are beginning to get a little harder as I'm obviously weaker. I'm going to go another two days and then reintroduce food gradually starting with soup, I'm a vegetarian, I'll follow up with Cheese and fruit for a cuppla days then go back to a healthy low carb, calorie diet.

I've been fasting for eight days just drinking Juice and Water, I've lost 7lbs and it's fat that's burning away. I also do a little upper body and stomach exercise every morning and night, The exercises are beginning to get a little harder as I'm obviously weaker. I'm going to go another two days and then reintroduce food gradually starting with soup, I'm a vegetarian, I'll follow up with Cheese and fruit for a cuppla days then go back to a healthy low carb, calorie diet.

You die.

You'll give up DIE.

u will lose weight but not for a couple weeks of doing it because your body goes into that stage of shock..but its terribly unhealthy and unsafe...trust me, I should know. and when you do, your body gets so sick and theres a big chance of passing out..then your body will slowly shut down if you dont treat it in time. there are soo many better ways of losing weight if thats really what you want.

You will lose weight but that is very unhealthy.when you dont eat you are considered anerexic which is very dangerous

you wont lose weight for the first few days due to the food it has stored but once its gone and your still continuing you will begin to see drastic changes because your body will begin eating its ownself to try to survive, and as soon as its done with that be asured that you will be heading to the emergency room or maybe you wont even be that lucky and directly to the grave would be your next destination!!! dont do it even if you think you will be able to control it after you reach a certain weight, its major damage your causing to yourself...either way once you supposedly finish at the weight youve wished for and begin to eat you might even double upp!!