Is this healthy?

You absolutely will not be able to lose weight until you begin eating more. You're drifting into Anorexia territory. If you want to lose weight, eat enough protein and fat and stay within your calories as long as it's at least 1200 per day.

Are you vegetarian or vegan? There are really no wrong foods, just some better choices.That being said, you need to eat at least 1200 calories per day and make sure you meet your protein goals. Healthy fats are also important.

My guess is that you already know what this will do so I'll save my breath.

Op none of us gained weight overnight therefore we won't lose it overnight. Going to these extremes will only set you up for failure in the long run. Do you plan on living off of 600 cal for the rest of your life? I doubt it. Why not stick to a lifestyle change that will benefit you both now and in the future. You may not lose 20lbs in a week but you'll see realistic achievements.

I'm definitely no expert. But I did look at your food diary. Your sodium in take is really high often. It doesn't look like you are consuming enough protein either. I eating 600 cals probably isn't going to make you feel any better. Have you tried going to the doctors? Having your blood checked making sure you aren't deficient in important vitamins my doctor has a nutritionist that you can meet with.

How strict of a vegetarian are you? Nothing with a face? Or try not to eat animal products at all?

Eggs,
dried beans,
greek yogurt,
morning star garden burgers (although I'm not sure of the sodium in that you could make your own to control how much sodium it has it in)
,Quinoa Pronounced KEEN-WAH you can make it to be breakfast with adding berries to it or add garlic to it and eat it plan or put a stir fry on it like you would rice. You can also make quinoa salads.
Tofu
You could make your own Hummas using Plain Greek yogurt on a Tortilla with anything you would into a wrap http://mideastfood.about.com/od/hummusrecipes/r/hummus_yogurt.htm
For a veggi Kale has a pretty good amount of protein

Hey guys! Thanks for all the feed back! I knew it was probably pretty unhealthy but I wanted to check and get reminders that slower is better, so thank you! Don't worry I only did it one day to make up for over eating the day before Is that okay?
Also I'm vegetarian, that's why I have trouble getting my protein in. Any tips? Also my sodium does tend to be high because the vast majority of vegetarian 'meat' is super high in sodium but it tastes good and is an easy source of protein which my doctor wants me to get more of I really appreciate all the feedback! Besides sodium does my food look pretty good? I've heard oatmeal is pretty bad and I have it a lot, should I switch to something else? Thank you again!

I am not vegetarian myself, but know that a lot of vegetarian will never hit the protein target. Eggs, some nuts might boost it a bit. You might see your carb be higher than recommended as well, all depending. Just hit your calories, focus on feeling healthy and full and remember: slow is good, if it goes off slow it is better for your body and you won't gain as quickly either.

And you have support!

If you're vegetarian rather than vegan then whey protein can help to hit your protein targets for the day. I have a protein smoothie with milk and banana every morning & it keeps me full & powered up through till lunch. Make sure you invest in good quality whey powder though, some of the cheap ones are devoid of necessary aminos and can be rough on the stomach.

I figured I'd read your whole post and what other people have to say before voicing my own. Since you only did this 600 calorie day to make up for the day before, it's unhealthy but not as unhealthy as doing it every day. But eating this little is exactly why you're feeling sick. If you go overboard on one day, don't make up for it the next day by eating less, just eat your calculated amount and exercise and move on. Since you are vegetarian, it is definitely much harder to reach your protein requirements. But that's where whey, soy, and vegan protein powders come in handy. Eggs, tofu, and legumes are high in protein as well. I am actually surprised that you've been told that oatmeal is bad because it's not. It has an excellent source of fiber and it also has more protein than you think it does so keep eating it if you like it! Also, the only reason you'll need to worry about sodium is if you have some sort of condition like diabetes or high blood pressure, and also if your body is sensitive to it meaning that you become bloated from it. So if you don't have any of those conditions, then you don't have to worry about high sodium intake as long as it's consistent and you consume enough potassium and water to help balance those levels. And here's what I hate about My Fitness Pal: Your calculated daily calorie totals already have your exercise levels factored in, so there's no need to track your exercise because you don't need to add calories to your day from it. But MFP still does that, which causes people to eat around maintenance technically. So you're not getting the full benefits you're looking for.

So to sum it all up, Eat your whole foods, enjoy oatmeal regardless of its bad rap, don't eat less to make up for a bad day, don't worry too much about sodium, don't track your exercise because your calorie totals already factor it in, be patient with your weight loss and enjoy life!!

don't track your exercise because your calorie totals already factor it in

False! I've had an off week being sick, but I normally burn 300-2000+ calories a day. This is definitely not factored into my daily goal of 1400.
I don't agree with staying away from any foods, unless they are triggers for you to over indulge. No good will come of starving yourself. You may see weight fall off quickly, but you will lose crucial muscle as well. Feeling tired and overly hungry from not eating enough will only cause most people to give up. This is a long process, and you need to find realistic goals for yourself besides just a number on the scale. Ask yourself, can I do this for the rest of my life? If not, you need to find a plan that you can stick with. Because even if you crash diet and lose a lot of weight, you will not be prepared to keep it off.

If you have to ask.. it probably isn't. You already know the answer.

Yes,this IS severely unhealthy.You must NOT consume less than 1200 calories in any case.
If you continue this way, there are good chances of metabolic damage - not only will the current results be disappointing,but losing weight will become harder and harder with time,and the chances o regaining the weight in no time will rise.

Moreover,your body will burn a lot of muscle along with fat,and you'll lose a hell lot of strength.You want to lose FAT,not muscle.Even when you reach your goal weight,you won't look toned and have very lose skin.

I know it might be hard to have people make fun of you,but the fact that you're willing to do BETTER means you're WINNING.Slowly,you'll get all the desired results,just gotta be patient.

This is NOT the way,DO NOT subject yourself to this.