How fast can I lose 40 lb if Im 5'4" and weight 140 lb. Im having 15-20grams of fat a day.  I dont exercise
969661
You are not likely to lose much weight without exercizing.  You need to burn 3500 calories to burn a pound of fat.  It's not about how lmuch or how little fat you eat.  You could be eating no fat, but if you're eating 4000 calories a day, you're going to gain weight.  It's about watching your calorie intake and making sure you're exercising.
785497
Losing weight help\n\nlose weight fastWe get weight by eating extra calories and incorrect amount of macronutrients. There are two ways by which we can lose weight.\n\n\n    * Eating less\n\n    * Exercising more\n\n\nYou know\n1 gram of protein = 4 calories\n1 gram of carbohydrates = 4 calories\n1 gram of fat = 9 calories\n1 pound of fat = 454 gram\nSo 1 pound of fat = 9*454 = 4086 calories\n\nNote: Our body fat contains around 3500 calories, as 10% of it is water.\nSo in order to lose a pound of fat (4086) in 2 weeks, we need to decrease calories consumption by 290 per day as 4096/14=290(approx)\n\n15 minute of good exercise will help you in losing around 100 calories. So in order to lose 1 pound of fat in two weeks, we need to exercise for around 45 minutes (290 calories) if we do not want to make any changing in our eating habit. So just take care of the amount of calories in the food you take. The best idea for losing weight will be by cutting down the junk food with exercising. So greatest way to lose weight is a mixture of diet and exercise as exercise builds muscles, and bigger muscles burn more fat.
368948
You weigh 144 pounds. You burn 1440 calories each day just carrying your weight around. If you ate 800 calories per day or less (don't starve yourself) and drank plenty of water, you could loose the 24 pounds in 16 weeks. That excludes exercise. But, if you also work out for 15-30 minutes each day you should be able to achieve your goal. Remember though, just because you are working out doesn't mean that you will loose, you have to stay on your eating regiments. I know all this from personal experience. I weighed over 330 and now am down to 250 in less than a year from just changing my eating habits.
135167
Losing weight fast is dangerous for your health.  Do not lose more than 1 or 2 pounds a week.  Low carb diets are also dangerous--the 1960's taught us that.\n\nYou need a regular exercise program and a balanced diet high in fiber and low in fat.  Because you are inactive and overweight, you should consult a doctor before starting any exercise program (for your safety).  It is dangerous to eat fewer than 1200 calories a day, and it is dangerous to do too much exercise all at once.  Diet pills are basically "speed", and not good for you.  You want to eat a balanced diet of about 1400-1600 calories a day and do some fun exercise every day (aerobic exercise, which means it needs to get your heart rate up for a minumum of 20 minutes).  The exercise type doesn't matter--it could even be dancing if you jump around enough.  You just need to get your heart rate up for an extended period.\n\nIf you burn more calories than you consume, you will lose weight.  Remember that you burn a bunch of calories just living and breathing, and that is one reason not to eat fewer than 1200 calories a day.  The second reason is that your body needs nutrition to live.\n\nSee your doctor and take your time.  I wish you the best!
800037
Just eat sensible and work out. It's not like if you eat more than 400 calories a day you will become fat. Actually, if you eat only that many  calories a day, your body will not burn fat cause your body goes into starvation mode and saves all the fat, and blah blah blah, sounds like you have heard this before.\n\nAll you have to do to stay thin it to eat healthy and exersice. Simple as that. Don't eat lots of fried food or take out or things with alot of calories or fat. And go to the gym 3 times a week, run, lift some wieghts, and you should be fine.\n\nRemember: To lose weight, you HAVE to eat so your body doesn't take away from muscle and leaves the fat just sitting there!\n\nP.S. - THAT GUY UP THERE THAT SAID GO AHEAD AND FAST PERIODICALLY IS STUPID AND SHOULD GO SHOVEL COW MANURE, YOU SHOULD NEVER FAST EVER, THAT ACCOMPLISHES NOTHING BUT THE LOSS OF MUSCLE AND THE STORAGE OF FAT! NEVER FAST!!!!
532136
Be VERY careful when trying to lose weight fast.  It is terribly bad for you to lose any more than 4 lbs a week.\n\nTo lose weight, you must exercise a LOT!  In addition, you should eat more than 3 times a day, but only tiny portions.  Maybe a half a fruit and some nuts.  Stay away from high fat items like mayonaise, cheese and fatty meats.  Eat fish, lean chicken or turkey, and PLENTY of vegetables.\n\nDon't forget to exercise every day.  Don't overdo it or you will burn yourslef out.
949091
I have some detailed ideas about weight loss on myYahoo!360 Blog of September 10.\n\nTo summarize briefly, don't target losing more than about 2 lbs per week. If you try to lose faster, your body will go into "starvation mode" and get very stingy about burning calories while at the same time very efficient about storing any calories that you do provide. And it will make you feel awful. \n\nThe most effective way to lose fat is aerobic exercise in the "moderate" fat-burning range, ideally first thing in the morning before you eat. When you wake your body is ready to burn fat and your levels of growth hormone are highest at that time. Later in the day it can take up to 30 minutes just to put your body into a fat-burning mode. \n\nAnother overlooked way to burn fat is by lifting weights. Skeletal muscle has very high caloric needs... almost twice that of adipose (fat) tissue. Put on a little muscle and you will burn calories all day even at rest. Be aware that skeletal muscle weighs more, so with this approach you may see your weight increasing while your body fat is melting away. Not realizing this often stresses folks who think they should be losing weight as a measure of fitness. Forget the scale, look in the mirror and you will be happy.\n\nAloha
607719
A pound of fat has 3500 calories.  So if you burn 200 fat calories five days a week, it would take 88 weeks to burn 50lbs of fat.\n\nOf course it isn't that simple.  In order to burn fat calories, you need to do at least 20 minutes of cardio exercise at 80% of your maximum heart rate.  The calories that you burn in those initial 20 minutes just come from your glycogen stores, which replenish themselves when you eat.  So if you burn an extra 200 calories after those first 20 minutes, then it would take 88 weeks to lose those 50 lbs.\n\nThe good news is that your metabolism gains a lot of momentum when you exercise on a regular basis.  As you exercise more and more, your body will burn fat more and more quickly.  Also, it will continue burning fat even after you finish exercising.\n\nIt will be important that you stick with a diet that doesn't undercut your nutritional needs and doesn't overshoot a healthy caloric intake.\n\nPersonally, I once went from 225lbs down to a very thin 160.  That whole process took me about seven months, but it was an entire lifestyle change.  I gave up soda, I drank much much more water, I began eating more natural foods and less processed foods, I exercised every day, etc.  By the end of it, I was running about eight miles per day, and burning about 850-1000 calories of fat with every session.  Now, I am a pinnacle of personal health and I have more energy than I could possibly know what to do with.\n\nedit - forget about the whole atkins protein/carbs bullshit.  Carbs are your friend.  If you don't eat carbs, your body will have to breakdown protein for energy, and that is very unhealthy.  Long periods of this process (ketosis) leads to many problems down the line, including cardiovascular problems and a myriad of atrophic muscle conditions.  If you stick with natural foods like fruits and vegetables and whole grains, you will only need to supplement your diet with protein on a semi-daily basis.  Besides that, your body converts protein into body fat very easily, with more than 95% efficiency.  On the other hand, it is more difficult for your body to convert carbs to body fat, as it does so with only about 75% efficiency.
202895
5'4" @ 120lbs is not bad. However if you want to loose whatever fat you have you should eat the correct foods and assuming you are doing that then figure out your daily caloric needs to sustain your current weight then simply cut 500 calories out of that diet but be sure to spread you meal out over 7 to 9 meal which means every 1.5 to 2 hours. The calculator to figure your calories is linked below.\n\nYou should also do some form of cardio training 3 to 5 times per week for 30 to 45 minutes but do not exceed 60 per session.\n\nPS Whatever you do please do not cut our the good carbs and good fats out of your diet or you will not burn fat as efficiently as you would be eating them.
153001
Losing 2 lbs. a week is really hard to do. But there is only one way to lose fat: You have to eat less than you burn.\n\nA pound of fat = 3,500 calories. So to burn a pound of fat you have to burn 3500 cals above and beyond what you're eating. \n\nTo lose a pound of fat a week, you need to burn 500 cals a day (above and beyond what you are eating.) To lose 2 lbs of fat a week, you'd have to burn 1000 cals a day. It can happen, it's just really hard to do.\n\nRemember that you don't want to starve yourself. If you don't eat enough calories your metabolism will slow and your body will start to break down muscle. You may lose weigtht this way, but you will lose lean weight as well as fat weight. It's not very healthy!\n\nSo, To answer your question depends on your resting metabolic rate. roughly 1500/day for women and 2000/day for men. This is your bear minimum for the day... you shouldn't eat less than that. Then up your exercise and you're off toward weight loss!!!
872211
A couple of common questions here amount to "How do I lose weight," or more specifically, "How do I lose abdominal fat?"  These are my thoughts as a physician and athlete.\n\nDon't target losing more than about 2 lbs per week. If you try to lose faster, your body will go into "starvation mode" and get very stingy about burning calories while at the same time very efficient about storing any calories that you do provide. And it will make you feel awful. \n\nThere is no site specific way of losing fat... the old myth about working your abs to burn belly fat isn't true. To get rid of love handles, you need to lose overall fat. That happens with exercise and watching your diet. More on that below. \n\nThe most effective way to lose fat is aerobic exercise in the "moderate" fat-burning range, ideally first thing in the morning before you eat. When you wake your body is ready to burn fat and your levels of growth hormone are highest at that time. Later in the day it can take up to 30 minutes just to put your body into a fat-burning mode. \n\nAnother overlooked way to burn fat is by lifting weights. Skeletal muscle has very high caloric needs... almost twice that of adipose (fat) tissue. Put on a little muscle and you will burn calories all day even at rest. Be aware that skeletal muscle weighs more, so with this approach you may see your weight increasing while your body fat is melting away. Not realizing this often stresses folks who think they should be losing weight as a measure of fitness. Forget the scale, look in the mirror and you will be happy.\n\nTo lose a pound of fat, you need to eliminate about 3500 calories. You can do this by burning more with exercise or by modifying your diet to reduce intake. If you do a Google search on say, "swimming calories" you will quickly find a website with tables of calories burned for a given exercise. You can use such lists to estimate how many calories you are burning up with your routine.\n\nFor diet, keep a diary for a couple of weeks counting calories, grams of protein, and grams of fat intake. It is easy with online sources of nutritional information (type the name of the food and calories into the Google search engine) and packaging labels. That will let you quickly figure out where the fat is coming from in your diet. \n\nFat gives you 9 calories per gram. So take the number of grams of fat, multiply by 9, then calculate what percentage the fat calories are of your total daily calories. Restricting the calories from fat to about 20% of your total intake is ideal for a maintenance diet... that isn't overly restrictive. Of note, you need some fat in your diet. For instance, the body uses fat to produce hormones. Once you have a picture of how to modify your diet, you can drop the diary and just go back to it occasionally if you are wanting to tweek things further.\n\nThere is a subset of questions that goes further and asks about "How to get a six-pack?" The answer is the same. Six-packs are 20% abdominal exercise and 80% diet. There is one caveat... abdominal muscles will form in the position that you work them, so be certain to pull them tightly toward your spine while doing crunches, etc. Also, during most lifting, the "core is active" which means that you should be stabilizing with contracted abs then too. Fail to do this and the abs will form, but bulging outward and the result is not attractive.\n\nIf you are trying to build muscle as a way to lose fat, then you may need to increase total calories and specifically your protein intake. I target about 0.8 g of protein per pound of body weight each day when actively building. That is far more protein than most people need in their diets.\n\n\nAloha
861423
Yes and yes.  It should be safe to lose 20lbs in this amount of time but be careful.  If you feel light headed or weak you are going too fast.\n\nDiet and exercise are the only safe way to lose the weight.  But don't be surprised if you don't lose that much. Exercise will cause you to gain muscle mass as you lose the fat.  An dmuscle weighs more than fat by volume.  You will look better though as muscle tone is what "looks" best on people.
323926
Reduce to a balanced 1200-1300 a day diet and do about 30 minutes of aerobic exercise a day.\n\nFor every 3500 calories deficit, you will lose one pound.\n\nEating fewer than 1200 a day is dangerous, and low carb diets were shown to be dangerous when they were a fad in the 1960s.\n\nIt is dangerous to lose more than about 2 pounds a week.
363347
Depends on how many calories you're burning. However, you can't lose FAST and keep it off. You didn't put it on fast. To be healthy, you should not lose more than 3-4 lbs a week. If you start some resistance training, you'll see body changes much faster even though the numbers on the scale don't drop fast.
581194
Losing 50 pounds is extreme, in my opinion. You probably shouldn't go below 140 to 145 considering you say the weight is not apparent to look at you. Certain body types (mesomorphic or endomorphic) require excess "baggage" for the body to function properly. If you were to binge-diet your way down to 120 lbs too quickly, your body would go into shock, or "starve-mode," and you would end up gaining that weight right back. \n\nBest advice for losing weight: Eat small healthy meals frequently. Examples of small, healthy meals: raw veggies and fat-free Ranch dip, rice cakes with f/f peanut butter (there's your AM protein), apples and oranges are a great way to energize mid-morning, bean-dip (made with f/f refried beans or garbanzos) with whole-grain tortilla chips - the list goes on and on. \n\nEat a properly portioned, sensible dinner. You can have some good "home-cooking," so long as you watch the butter, salt, grease, and fried foods. Steamed veggies are good. Avoid red meat and eat more fish, especially tuna and salmon. \n\nFinally, keep active. Get on the treadmill or take brisk walks at least 4 times a week. Keep your heart rate up - don't stop to take a break. Once you're settled in cardio, you can do some area-specific exercises to firm up muscles. \n\nGood luck!
438174
I guess it depends on how fast you want to lose weight. Any work out routine will work if you do it. Lifting light weights from five to twenty pounds works. I did it six days a week 3o mins a day. Alternating upper and lower body and doing abs everyday. I kept my fat to 25 grams a day. If i had a craving i had one cup of low fat chocolate frozen yogurt as a treat. I went from a flabby size ten maybe to a 1/2 in two months. That fast. It works but it takes work. I ate a cup of cereal in the morning with a half a cup of milk one banana, glass of o.j .For lunch a salad and a piece of grilled chicken and a cup of broccoli. Afternoon snack 1 large pretzel. Dinner another salad, 1 cup of pasta with beans. I made sure i ate several small meals through out the day. If you do it this way you are guaranteed to lose weight. It works. I remember when i started working out this way and i was shocked at the results. My stomach looked awesome my arms legs everything was tight and toned. I could go to the mall and pick anything off the rack and it fit. It was the best thing i ever did.  That infomercial stuff is crap. Trust me. If you want to e-mail me i can tell you more about how i did it. It doesn't take long for results and the results last a long time. You won't feel deprived you'll have so much energy. The great thing about lifting light weights is sculpts the whole body. There is no pill or shake that can do that. Once you replace fat with muscle you burn more calories and can treat yourself to things you really want and even take a few weeks off from working out and not even gain any weight. I lost a total of twenty pounds which may not sound like much but you could take two women same height and same weight say 120 pounds one is muscle the other more body fat. The women with 120lbs of muscle will appear to be smaller because muscle takes up less space than fat but weights more.
491347
debarsue's answer is pretty good.\n\nOne cant not lose weight and hope to keep it by crash diets and work outs that you cant do the rest of your life.\nThat is why most people lose it and gain it back quickly.\nIt took me over a year to lose 15 lbs, but i know it will stay off.\nIt is a live style change, eat veg and fruits mostly.\nSome small amount of meat, and small amount of carb.\nfast walk is the best, dont run now, you might hurt yourself. Walk 3 miles in about 45 mins. a day, six days a week. Drink 6 to 8 glasses of water a day.\nStay away from all sugar drinks and food.\nDont be disapointed, you will not lose weight for months, thats normal.\nMuscle weights more then fat, but it also burns more cal.\nRead and learn more on  the subject, stick with it for the rest of your life.\nyou are only 19, is not too late.\nLive long and happy\ngood luck