5'10 girl..is it possible to lose 20 lb in a month!?

Possible? Yes.

Achievable? Not in any healthy, sustainable manner.

Tips and advice? Absolutely not. I don't support stupid.

Recommended healthy weight loss is 1-2 pounds a week at most. Set a more realistic goal and be patient.

I would expect to lose between 4 and 8 pounds in a month, but considering your height and weight I'd say closer to four, if you're to do it in a safe and sensible manner.

No. 20lbs is too much too lose for just a month.

Pretty hard to say much better than what is already posted, but just isn't healthy. Do the healthy long term and you will be much healthier and successful long term. Good luck.

Physician supervised PSMF diet.

NO.

Don't do it.

You're *barely* above the top of your "normal" BMI (and depending on body composition, that could actually be a healthy weight for you - it is for me and I'm your height, although I am a little lighter than that).

Losing that much weight that quickly is an unrealistic and unhealthy expectation. I will say that I did, indeed, lose 20 pounds in a month once - it was when I started and was over 100 pounds heavier than you are and I am sure about 10 of those pounds were water weight anyway. You just don't have that much to lose.

3,500 calories = 1 pound.
20 pounds = 70,000 calories.
70,000 calories / 30 days = 2,333(ish) calories/day deficit.
At 176 pounds and 5'10", that's probably right around where your maintenance calories are.
To attain a deficit that large, you could eat about 4 pieces of iceburg lettuce each day for the next 30 days.
You would be miserable, and fatigued, and most likely get very sick.

In other words, NO. Do not do it.

Well at my 4ft 10 in medium frame I lost 13 in a about 5 weeks but hey that's me and I have lost 17 since in the last 6 months steadily . So I suppose if you had a lot to lose .but 20 lbs on you doesn't seem like to much , so losing 5 lbs would be more reasonable perhaps .

it`s possible but not healthy.just try to loose what you can in a proper and healthy way and if it`s only a few pounds you have still achieved success because it`s better than not losing it at all.remember you want to be healthy when you go on your trip:laugh:

to lose 20lbs in 1 month, you need a deficit of 20* 3500 = 70,000 calories.

that means you need a daily deficit of 70000 / 30 = 2333 per day.

almost certainly, you'll need to eat 1200 or more calories to get the proper amount of nutrition for yourself. you'll have to be really diligent about your food choices for the whole month, making sure to meet your daily protein and fat requirements. 1200 is a bare minimum and 1400-1600 is much more realistic. i would never recommend that anyone eat at 1200 or below. but for the sake of argument, let's assume that you can eat 1200 every day and meet your nutritional needs.

that means you'll need a TDEE of 1200 + 2333 = 3533 every day for a month.

once you determine your BMR and multiply by your activity level (usually 1.2x for sedentary), you'll have to add in enough exercise EVERY SINGLE DAY to get yourself to that 3533 total calorie burn. that's likely a lot of cardio for you every day. probably 2-3 hours or more... every day.

if you did this for 1 month, you'd lose 20lbs of muscle and fat in some proportion that we can't predict based on the given information. at the end of the month, you may start to see some hormonal changes that affect your appetite and your rate of weight loss.

you'd also likely end up dehydrating yourself a bit during this whole process and might see additional water weight lbs gone on the scale, although they will return after you return to normal habits. BTW, this is how those 2-3 week fad diets get their "results". most of what is lost is water weight and returns at the end of the fad diet.

does that sound like how you want to spend the next month?

How long did it take you to lose the last 20lbs? Take that and add a little more time and you've got how long it will take to lose the next 20lbs.