I want to lose 50 pounds in 5 months?

It is safer to lose slowly. Doctors generall recommend 0.5-1 lb per week, unless medically supervised or if you are VERY obese, 2 lbs/wk to start (but closer to 0.5-1lb/wk as you progress). Studies show the longer you take to lose, the more likely you are to keep it off... Also, you didn't put it all on at a rate of 2.5lbs/week, so try to remember that.

I think the most important thing is to focus on being HEALTHY, and losing weight safely... Talk to your doctor.

I agree with the others, I would reset your expectations. In 5 months, you could probably expect to safely lose about 20-25 lbs. If you expect more, you're more likely to either crash diet (which isn't sustainable, in which case you'll get tired and go back to your old ways and gain it back) or to get discouraged that you're not hitting your goals fast enough (in which case you'll probably again, get discouraged and go back to old ways). If you set realistic expectations and keep at it, you'll lose those 50 lbs. It may not be in 5 months, but you'll get there. (And if you keep at it, in 5 months you'll be healthier than you are now!)

Reality check..........http://www.fitwatch.com/qkcalc/weight-loss-calculator.php

As you get closer to goal it will become harder and harder to maintain the same weight loss, because the smaller you requires fewer calories to maintain. You will likely want to add exercise (not mandatory) .....but calorie burns actually go down as you become more fit (and smaller). You might be tempted to lower calories....then lower calories some more.....that is counter productive because lowering calories too much results in fat+muscle loss.....instead of just fat loss. With muscle loss you could be smaller....but still kind of flabby.

I dont think you can lose this much in that amount of time in a healthy way. I have a very strick diet established by my doctor and my nutritionist plus i go to the gym 2hrs a day 5 times a week and lose about 2 pounds a week but i weight more than you so....maybe consult a nutritionist first to see what would be a healthy way to lose ???

yes YOU CAN DO IT!

Your Ideal weight should not be 140 pounds or near about it.There are the various ways to reduce it, plan your diet accordingly,Do some work out.

You can TOTALLY do it! I just lost 27 lbs in 4 weeks! BUT, I have a lot more to lose than you. There is a book that just came out called Super Shred by Dr. Ian Smith (he is NOT paying me!! BUT my group "The Flab 4 was on Rachael Ray 1/6/14 ) That book is number 1 best seller on the New York Times right now. GET THE BOOK!! It is all grocery store foods. We also have a face book group called Flab 4 SHREDDER Revolution. NOT selling anything, I swear. But we have over 230 people trying to keep each other accountable. Check us out. We are all on My Fitness Pal. Some have fitbits. Most, but not all on the group are going Super Shred but at different start times. We have new members every day. Some are doing WW. Some are just eating less and moving more!!

1 % of weight per week is the standard max I have heard. So at 170 that is @2lbs /week. By the time you are under 150 you are talking more 1 lb a week. AND it will be harder to lose because, as others have stated, you will need less calories to maintain and therefore it will take what is generally considered dangerously low caloric intake to lose weight fast. I am much heavier than you {254 as of last weigh in} and I don't hope to lose more than 1.5 lbs a week. And given this week I will be lucky to have maintained o.0 I am making very small achievable goals one for each month. This month I am adding at least a cup of veggies to every meal. It has helped fill me up and cut out room for bread on my plate but I have not intentionally cut carbs or fat or even calories. I am not sure what I am going to do for next month…. probably look at the carbs because I get that stuff in my mouth and can't seem to stop eating.

the tea idea is a good small step. My mom who was very petite {short and tiny both} used to diet by drinking her coffee black. I know that sounds like nothing but we are brazillian and coffee was 2-3 rounded dessert spoons of sugar and lots of cream for that cafe au lait look. She drank at least 8 cups of coffee a day so that was about a cup of sugar a day. I doubt you are that bad but I can tell you I learned to not touch coffee or soda when trying to lose weight. Actually I have pretty much given up on any beverages other than water but I did that last year. My beloved coke is for special occasions and to be honest I haven't had one special enough to have me open a can in a long while

A strict diet can work; I lost a lot of weight (about 24lb) last year doing (in part) just that. The first 10lb came off using a one-week diet I found online which was very calorie and carb restricted. Then in the following weeks I allowed myself to eat a little more normally but incorporating some of the sorts of meals from the diet (e.g. big salads with a little ham or chicken) and I lost the rest that way.

Crash dieting is not recommended generally but the comments I got after one week gave me the encouragement I needed!

The diet I followed was extremely prescriptive and that worked for me for that first week. It was said that deviating from the meal plan in any way would cause the diet not to work, which I didn't truly believe, but somehow keeping that in mind made sticking wit it a lot easier. I was hungry but gorged on lots of water to stay feeling full, and my salad portion size was garagntuan... (the increase in fibre had an interesting impact which I won't go into details on here!)

Apparently, judging from other forum posts, it IS possible to lose weight that fast, but most of the time, those people went back to their old habits and gained it all back. Maybe they were miserable while dieting and could hardly wait until they could eat normally when they were finished (ignoring the fact that their normal eating is what got them so heavy in the first place.) The more things you change from your normal life, the harder it will be to keep to the plan.

Take an honest look at your past behavior and figure out what caused you to go off your plan that other time. Can you really radically change the way you eat AND excercise that much every day for five whole months? If you succeed, will you then go back to all your old habits? If your tendency is to be 100% on or 100% off like a light switch, are you going to give up the first day that you miss a workout, or eat a donut? How will you feel if in five months you've only lost, say, 25 pounds? Are you going to feel like a failure even though you LOST 25 POUNDS?

I think one of the previous posters was right when they suggested you try your plan out for a month and see how you do. It will at least be a learning experience. Maybe have a plan B, if it doesn't work as well as you had hoped, but don't give up. A lot of people are having good results by only changing a few things and allowing themselves their favorite foods once in a while.