Extreme Weight Loss (2022): How Much Weight Can You Lose In A Week?

July 7, 2022 | 3727 Comments


how much weight can you lose in a week without eating

Important note: Please advise your doctor before following any plan. Don’t follow the advice below if you are under 18. 

People always ask: How much weight can you lose in a week?” Well… to answer your question I have good news, awesome news, and bad news.

First onto the good news: YOU CAN LOSE A TON OF WEIGHT IN ONE WEEK

That’s right, you don’t have to be bound to the conventional wisdom of only losing 1 or 2 pounds a week. Extreme weight loss diets can definitely work, but only for a short period of time.

In fact, you can lose up to 15 pounds in one week if you do it correctly.

Now onto the awesome news: ALL THAT WEIGHT YOU LOSE WILL BE WATER AND FAT, NOT MUSCLE

Yup, you read that correctly, if you follow the methods at the end of this post, all the weight you lose during the week will be pure body fat. The conventional statement that losing more than 2 pounds per week leads to muscle, organ, and hair loss is absolute unicorn shit.

How do I know this? Because some awesome scientists from the American College Of Nutrition back in 1999, conducted a study, which tested 2 groups of people for 12 weeks.

One group only did traditional cardio, while the other group only did weight training. Both groups ate 800 calories a day. At the end of the study, both groups lost large amounts of weight, but the one that only did cardio lost large amounts of lean muscle mass, and the one that only did weight training didn’t lose any muscle mass at all.

So there you go, some hard hitting scientific facts that prove that you will not lose muscle during extreme dieting as long as you lift weights.

Note: And if you don’t have a gym membership or if you don’t have access to any weights, then doing a well-designed bodyweight program like Bodyweight Burn is your next best option.

And lastly, the bad news: YOU HAVE TO EAT VERY VERY LOW CALORIES

So yeah…. you have to eat a ridiculously low amount of calories to lose a lot of weight in a week. I’m talking along the lines of 800 calories a day.

The amount that would make any nutritionist hang themselves.

And now, onto the plan, but first, a picture of steaks:

How much weight can you lose in a week protein
I didn’t want to put a boring picture of a scale, so here’s some delicious steaks. I’m guessing this isn’t the best article to put this picture in

The 2-step plan to lose the maximum amount of weight in a week

Please note that the following plan can be used by both men and woman.

And don’t do this plan if you’re under 18, you’re way too young to be eating such low calories.

I guarantee that if you follow the plan below, you will lose 10-15 pounds(water and fat) in one week:

1) For one week only, eat 800 calories per day.

2) Workout 2-3 times per week with weights. Make sure the weights are heavy and be sure to hit all body parts.

That’s all.

Some notes/tips about the above 2 steps:

  • 800 calories is very little food, for any man, woman, or baby walrus. Because of this, I suggest that you only eat 1 meal per day a la Brad Pilon’s Eat Stop Eat. If you eat one 800 calorie meal per day, then you’ll at least feel somewhat satisfied, but if you split that up into 3 or even worse, 6 meals per day, then you’re not going to fare so well on this one week venture. Yes, this means that you will be fasting 24 hours every day for a whole week. Just remember, you will be burning fat, not muscle.
  • Whenever possible, eat higher protein and eat foods with high water content such as fruits and soups. Also, drink lots of coffee and green tea, since they both tend to blunt hunger quite well.
  • Stick with heavy compound exercises when in the gym. That means no curling and crunching, and if you even step foot on a treadmill, my dumbass radar will go off and I may have to kill you.
  • If you can’t lift weights, then your next best option is to do some sort of bodyweight training. You know…exercises like squats, push-ups, lunges, pull-ups, sit-ups, etc..
  • This is a mental game more than anything else. When you’re eating very few calories to lose weight faster, your mind starts playing tricks on you. Your stomach is gonna be grumbling more often. And there are gonna be times where you want nothing more than to self-sabotage yourself. Which is why the next point is so important.
  • Above all, keep yourself distracted and out of the kitchen. If you’re constantly prancing around the kitchen and thinking about food, you’re going to fail. So keep yourself busy. Read a book, play some video games, take a nap, work on your tan, or shave your pubes. I don’t care. Just do something that doesn’t involve food.
  • [EDIT 10/6/2014] I should also add that your protein intake needs to be HIGH. Like really high. In fact, the majority of your calories should probably come from protein, fruits, and veggies if you want this diet to be effective. The protein will help keep you full but more importantly also help maintain muscle.

Remember, this is only for one week

I just wanted remind you all, that this sort of extreme weight loss plan is only a temporary plan.

The results don’t have to be temporary, but the plan is. Please do not try and do this weight loss plan for more than a week.

Doing so is really going to mess with your head and you’ll most likely binge back to your original weight.

After one week, transition to a more moderate weight loss plan for the long haul.

I hope you guys now know how much weight you could lose in a week if went balls to the walls.

Want even better results? Take it to the next level with Fat Loss Boost

Many people have been asking me, “Can I do this for more than 7 days?”

Uh…

Yes and no.

Technically, you could eat 800 cals per day for a sustained period of time.

But sooner or later it’s gonna backfire on you.

If you want a more sustainable rapid fat loss plan…

Then I highly recommend checking out Fat Loss Boost.

This is a more long-term approach than the strategy I outlined in this blog post.

It’s a strategic rapid fat loss diet that works in 14 day cycles.

So you go hard on the diet for 14 days, lose a crap ton of weight, take a break, and repeat.

And the results from Fat Loss Boost are even better:

“I have been able to lose 10 pounds using this program. Starting weight 186. Weight this morning was 176.”

“I lost 12 lbs for my first attempt. Started at 201.7 and ended at 189.9. I am amazed!!! Thanks to everywhere for all the support and great hacks.”

“Ok people I’m done 😀. I hit 171.8 today, my goal was to break 172 on this round which was what I weighed almost ten years ago (lowest as an adult). That’s 30.2 lbs in just under 3 months.

Pretty crazy, right?

Definitely give it a look if you want a realistic, yet challenging plan that burns fat faster than anything. you ever tried before.

Check out Fat Loss Boost

=================

Questions? Like steak? Let me know down below.

I respond to (almost) every comment, which is pretty crazy considering there’s been over 3000 comments. Sigh…I need a hobby. 

3727 Comments - Leave Your Thoughts

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  1. I want to lose atleast 6-7 kgs in coming 3 weeks. I’ve done this before but failed coz I get really hungry after lunch till dinner time. I’ve started again today with 3 meals per day, green tea mid morning but have really no idea what to eat b/w lunch and dinner. Also, chicken is not easily available here, do you have some alternative to the meat?

    1. If you dont have muscle in the first place, then you likely won’t lose much muscle.

      Crunches aren’t “bad,” but it’s the equivalent of asking “what’s the best multivitamin brand to take?” when you’re still eating a dozen doughnuts per da.

  2. THE DAY OF MY WEIGH-IN IS HERE. I can say I am shocked by it. On September 1, 2017, I weighed 228.6 lbs. I had not weighed myself since, until today. My goal was to get back to 200 lbs. Over the past 5 weeks I’ve stuck with the 800 calorie diet. I’m going to hit the gym this month and tone up. The most noticeable weight loss is shown in my obliques and face. I have had no ill-effects from prolonging this diet. Tonight I rewarded my efforts with a char-broiled cheese burger. Otherwise my average for this week would have been better. However, I’m proud to say I’m way WAY ahead of schedule to my surprise. Here is my 5 Week Averages:

    1st Week Average

    790 Calories A Day

    Fat 22.5g
    Satfat 5.8g
    Monofat 6.2g
    Polyfat 3.1g
    Cholesterol 453.8mg
    Sodium 2022.6mg
    Carbohydrates 31g
    Fiber 3.8g
    Iron 6.7mg
    Sugar 9.9g
    Protein 109.8g
    Potassium 283mg
    Calcium 149.2mg
    Vitamin A 54.2mcg
    Vitamin C 2.5mg
    Vitamin B 1mcg
    Phosphorus 185.7mg
    Selenium 30mg
    Caffeine 114mg
    Green Tea Extract 135.7mg

    2nd Week Average: 24 Hour Fasting

    788 Calories A Day

    Fat 19.5g
    Satfat 6.5g
    Monofat 1.7g
    Polyfat 1.5g
    Cholesterol 436.4g
    Sodium 2144mg
    Carbohydrates 26g
    Fiber 2.4g
    Sugar 9g
    Protein 124g
    Potassium 762.1mg
    Calcium 59.5mg
    Iron 2.8mg
    Vitamin A 54.2mcg
    Vitamin C 2.5mg
    Vitamin D 6.8mcg
    Vitamin B12 1mcg
    Phosphorus 185.7mg
    Selenium 30mcg
    Caffeine 114mg
    Green Tea Extract 192.8mg

    3rd Week Average: 24 Hour Fasting

    778 Calories A Day

    Fat 17.1g
    Satfat 3.7g
    Monofat 2.4g
    Polyfat 1.6g
    Cholesterol 285.3mg
    Sodium 2524.7mg
    Carbohydrates 32.7g
    Fiber 2.5g
    Sugar 14.2g
    Protein 116.9
    Potassium 367.5mg
    Iron 3.4mg
    Calcium 33mg
    Vitamin A 32.5mcg
    Vitamin C 1.5mg
    Vitamin B12 0.6mcg
    Phosphorus 111.4mg
    Selenium 18mg
    Caffeine 130.2g
    Green Tea Extract 200mg

    4th Week Average: 24 Hour Fasting

    747.8 Calories A Day

    Fat 30.7g
    Satfat 6.1g
    Monofat 1.4g
    Polyfat 1.8g
    Cholesterol 239.1mg
    Sodium 25.36.5mg
    Carbohydrates 23.6g
    Fiber 2g
    Sugar 9.2g
    Protein 90.1
    Potassium 196.7mg
    Iron 0.8mg
    Caffeine 48.8
    Green Tea Extract 100mg

    5TH WEEK AVERAGE:

    748.5 Calories A Day

    Fat 20.9g
    Satfat 15.7
    Monofat 1.6g
    Polyfat 1.2g
    Transfat 0.2g
    Cholesterol 350.7mg
    Sodium 1687.4mg
    Carbohydrates 27.1mg
    Fiber 1.6g
    Sugar 8.2g
    Protein 105.3
    Potassium 612mg
    Iron 2.8mg
    Calcium 59.5mg
    Vitamin A 54.2mcg
    Vitamin C 2.5mg
    Vitamin B12 1mcg
    Phosphorus 185.7
    Selenium 30mcg
    Caffeine 97.7mg
    Green Tea Extract 142.8mg

    I’m going to stick with the diet a little while longer to burn off some unwanted fat. Even Though….

    I am 200.4 lbs. My Weight Loss Averages:

    28.2 lbs IN 5 WEEKS

    5.6 lbs A WEEK

    1.2 lbs A DAY

    1. Is it healthy to do this if you are under 18? I am 14, 170 pounds and 5’7″ I am very muscular and my stomach is flat but I want it to be way flatter. Is it healthy to do this? I honestly don’t care about becoming infertile.

      1. Giiiiiirl, You don’t care about becoming Infertile? As you grow Older your mind will most definitely change regarding that comment. If not its still not a good thing. Im currently 21 years old and I weigh 163 pounds. Im on the extreme diet and its very hard and tiring. You attend school and you’ll be less focused and more likely to pass out during class. AND if you tell the “school nurse” or your parents why (because in the end they’ll find out and notice from your reduced eating habits) they’ll take you to a hospital in which they’ll give you an Injection which gives you IV Fluids. (FOOD) and your calorie intake will be right up again.
        I suggest you not to do this because you’re too young to be worrying about your body image, Focus on your GCSE’s!! lol
        Just eat less cakes, sweets, biscuits, cheese, bread, chocolate (you know.. all the bad fats) every once in a while you need bad fats but reduce and you’ll see the difference.
        Exercise regularly (Go for a walk every evening) which is what I do and you’ll also see a difference. Or the gym if you like that better.. OR BOTH! 🙂

        stay healthy young one 🙂

        and if you wanna talk about any personal issues just reply to me and we can talk privately!!

        mwwwauh

        1. Dear Charlotte,
          thank you very much for the advice! Actually I don’t eat any of like biscuits because around two or three months ago I became vegan but I started gaining more weight after I went on vacation because I fell off my normal daily exercise and have been try to find new. I’ve decided to now increase my daily exercise by also adding weight training. I am also going to try to eat only natural food like I did before. Hopefully by spring I will be healthier and happier. Spring is a good goal to have lost weight, right?
          -Sarah

    2. Many congratulations. Well done. I wonder how many ilbs you lost after week one though – I wonder if it was 10-15ilbs as author suggested in the article? I guess you won’t know though. Could you tell by looking in the mirror or with your clothes that you had lost nearly 30ilbs? What did the difference feel like?

      1. It feels better having lost it. I’ve always been comfortable at this weight. My feet are thanking for it. A lot less ache in the afternoons due to the weight loss. I didn’t have much physical activity during the 5 weeks I lost the 28lbs. So I can tell you beyond a shadow of a doubt. If you’re like me and have some fat to lose. Whether you work out, or work hard, or do nothing at all, you will lose up to 5lbs guaranteed. My diet consisted of low-fat, as little as possible saturated, no transfat, low carbs, low sugar, and as much high lean protein without exceeding over an 800 calorie a day average weekly. I could first notice a difference during the 2nd week. I could swear my love handles were melting away. I had gone down 3 belt notches during that short time. Then shortly after everyone kept saying they could notice how my face had slimmed down. So you will notice a change. Now, as far as the claims you could lose up to 15lbs. I don’t know. Sounds like a stretch, but I thought losing this much would be too. When I’ve dieted in the past and wanted to lose weight quickly. I would eat a diet of anywhere of 1400 – 1600 calories a day. I would lose an average of 2 to almost 3 lbs a week. So this shouldn’t have come as a shock to me that I lost so much, but still, it did. Because I just never thought my body was capable of it. I can’t say whether or not 15lbs is possible to lose in a week. However, I can see someone lose a lot of weight who has a lot of fat on them. How much? I don’t know. If someone were lean and mostly muscle. I don’t see it physically possible to lose 15lbs in a week by any stretch of the imagination. Just as hard as it is to build muscle. It is can be just as hard to lose it depending upon one’s diet and activity level. Someone who was mostly muscle would have to eliminate as much protein as possible out of the diet and still work out hard. A low-protein vegan diet would be ideal for them. My best guess would be it takes twice the time to lose muscle as it would fat. Why lose muscle? Well I know personally, my body just wasn’t meant to have that much weight on me. Whether I was 228 pounds of muscle or fat. It just isn’t comfortable. My knees and feet would ache amongst other things. 200 is a good weight for me and I’m happy with that.

  3. Hello, I’m Zoe, 21 years old, female, 5’8.2 AND I weigh 229.3 pounds
    hourglass figure unfortunately

    whenever I get the chance I choose to stay home (school’s the only reason why I leave home really and sometimes my boyfriend was a reason too but now that I cant even see myself in the mirror I left him).I dont eat fast foods, I don’t eat meat. BUTTTT I eat ALOT of bread and cheese etc especially at night time and usually fall asleep immediately after eating.

    I gained 66 pounds in about a year I think from alot of reasons, which make me feel ashamed of myself.Here’s my struggle now (appart from obesity and that school’s starting in a week lol)
    every time I try to start something that I know it will help me lose weight I never finish it, it won’t even last three days.Not because of the hunger. I’m sort of terrified about how my body will look like after I lose weight and if my stretchmarks will disappear or not (i’ve had them for 7 months now and they’re red )
    I can’t seem to start working out.It scares me and I don’t know why.I will hopefully start today and I will do alot of weight training. and after this one week I think I’ll just stick to protein and vegetables and water diet till I reach the goal of 125 pounds.I’ll be flexible about the methods I’ll use to lose weight. I think this article will be of great help to me. I mean I’ll read it everytime I will want to give up.
    Alsoooo I don’t know why I wrote all these stuff. :p
    But I will definitely add another comment in June 2018 for the final results if this is still available ofcourse.
    Thanks.

    1. Hi Zoe,
      I understand where your coming from because I found myself in a similar situation. I couldn’t “start” and nothing seemed to work. But one day, I decided that I was going to just change my diet to see how things went. But I wouldn’t step on the scale for a month because I always found the scale to be my worst nightmare. I cut out high fat and high carb foods such as potatoes, pasta, dairy, bread and sweets. And I only started drinking water. It was a bit hard at first, but let me tell you, once you get through that first week, its great! You start seeing changes quickly! People start noticing! I hope this helped in any way to motivate you and inspire you to not be afraid to make that change!

  4. I ❤️How simple you out everything and am super excited to try this for a neighborhood Halloween party in 7 days. I’ll post how it goes! Thanks 🙂

  5. Hi i weigh 126 pounds, kinda fat, and 15 years old, and wondering how i can get leaner, and was also wounder if eating 2 meals a day eating 900 calories a day, like chicken, spinach, corn, peas for lunch and dinner is 1/4 pound of steak, bell peppers, peas would help me lose weight, is there other ways of losing fat, or a better diet to help me lose water and fat.

  6. I’m going to try this. I’m vegetarian, just turned it recently. What is my best sources of protein for this method? Lentils, nuts, legumes, tofu, cheese, anything else?

    1. Of eating?

      A lot of lean protein , veggies, and fruit. Minimal amounts of fat since fat is over twice as calorie dense as carbs and protein.

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