Can eating too little calories stop you loosing weight?

yes it can. Your body will go into starvation mode and save as much fat as it can to survive.

Please read

http://www.myfitnesspal.com/topics/show/3047-700-calories-a-day-and-not-losing

WOW that is totally not enough calories. I have been working out with a trainer for the last year and this is what she says. " If you drop down past 1000 calories your body will start going into starvation mode and hold on to everything you have and it will start effecting your muscle." I think you should use the calculator on MFP and see what it says, I bet it will be around 1200-1300. That is what I try to stay at but I DO NOT add my calories that I burn off to my food consumption unless I am going out to eat and treat myself. Hope this helps and good luck.

Technically, it won't "stop" you, but it will definitely slow things down and will have other negative effects. It's not a positive or successful strategy--it has a98+% failure rate.

You need to take a step back and plan this out a little better. Start with the MFP calculator to get a good idea of what your daily calorie intake should be and start keeping a food diary.

Spend some time on these message boards and get some additional information, or ask more specific questions in the forums. Some topics have "permanent" topics that might have more background information.

Your walking is fine -- it's good enough to keep you going while you get yourself organized.

I applaud your effort to get started on a program--just take some time here to get some more information--it will help you be more successful in the long run.

That's a ridiculously small amount of calories to eat every day. Your body will start to store fat instead of burning it off because it needs energy. You need at least 1200.

I agree. I would the calories to what MFP says and keep up the exercise. I bet you'll see results faster, and you will definitely be healthier and more likely to maintain the weight loss if you do it in a healthy way. Good luck!

Could you -really- see yourself eating 500 cal per day for the rest of your life?

This process is all about changing bad habits for good ones. Be sensible and take it slow. The weight comes off.

"Starvation mode" is a misnomer. It would be far better if we could call it "conservation mode", like the power saving mode on your computer. It's a better term and it covers both food and drink, because yes, you can also stop losing weight if you're not drinking enough water every day (min. 8 cups per day) or if you don't get enough sleep (so it covers that too!).

I personally have lost 12 pounds in 2.5 weeks by limiting my calories to between 600-1000 calories. Based on previous replies, I suppose I must be one of the lucky ones. I alternate calorie intake each day, so one day it's really low, around 600, and the next day, it is at least 1,000. My body hasn't gone into starvation mode and the weight has dropped right off. I will say that I don't expect this rate of weight lose to continue and I will be adjusting my calorie intake to 1200 calories a day for about 3 weeks and then I'll go back to the 600-1000 for 3 weeks. I take vitamins, drink lots and lots of water, and do moderate exercise in the morning. You can't expect to exercise too much on such a low calorie diet because your body just doesn't have the fuel for it. It also helps to have most of your calories in the morning to give you energy for the day. Eat the least in the evening.

Now I have a hard time eating my 1200 allotted daily calories, but I definitely think that you should be eating way more than 500 calories per day. Is your diary public? I would love to see how you manage to get by on so few calories. Actually, sometimes I wonder if my body is in starvation mode, but IDK.

Honestly, I don't understand what the rush is and why someone would choose such an unsustainable, in the long term, diet plan.
I realize it's MY preference, but I'm all about slow & sustainable losses; who wants excessive sagging skin? who wants to cause internal organ damage? who wants to feel deprived? who wants to eat like that the rest of their lives.?

I didn't gain my weight overnight, I'm not going to lose it over night either.
BUT, that's just me.

How have you not passed out?

I limited myself to 900 calories a day for a couple of months and walked 3-6 miles a day and lost 18 pounds. THEN I hit the wall. I haven't lost in a month and now am readjusting to the 1200.

This is a hazy subject. It's not as simple as eating under 1200 calories will stop you losing weight.
We can see the effects of anorexia sufferers, they obviously deprive their bodies of calories and end up skin and bone so that hasn't stopped them losing weight. However, the medical problems that come with anorexia and other eating disorders shows that depriving our bodies of what they need is dangerous and not worth it!

We are all different so the amount of calories I need may not be the same as you. 400 calories does seem very low though! I can eat that in one meal, nevermind one day! The question is, are you hungry? If you're hungry then it isn't a healthy way to be living.

My aim is 1200 calories per day. Some days I can be under by 150 to 200 calories, other days I can be over. For me, I try to balance it out through the week.

Losing weight should be about changing your eating habits permanantly, not depriving your body of calories to get a quick fix to weight loss. As soon as you start eating more, the weight will return!

The way I see it, if we burn more calories than we consume, we should lose weight! So keep yourself active