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

Your email address will not be published. Required fields are marked

  1. well seeI’m 15 and I have to eat all three meals for the next two days but then I can go back to the once a day thing…. how far will this set me back?

    1. But you are way too young to be doing an extreme low calorie diet like this, your body is developing and you really don’t need to severely restrict calories like this.

  2. I have 2.5 wks before a trip. I’m a 30yr old female 5’9″ 155lbs and would LOVE to be 130lbs. Possible?? If I have to energy to add it cardio along with the weights I’m assuming it would help the process along? Any tips you can give would be great. Thanks!

    1. Not possible, sorry. You might be able to lose 10 pounds your first week but after that weight loss will begin to slow down as you reach your goal weight. Realistically, you would need about 6-8 weeks to lose 25 pounds.

  3. Hi I’m 23 I’m 5ft5 and weigh 136lbs
    Before having my son who is now 2 I weighed 112lbs. I went up to 175lbs whilst pregnant. Do you think I could realistically lose 10-15 by following your diet? I eat quite a lot more than the daily recommended calories and do little exercise. Any advice would be great.

    Thanks

  4. Thanks for your advice: I think it’s useful and realistic and also prevents one from looking like those fags that spend hours in the treadmill.

  5. I started the one week extreme diet last week. I lost 7lbs. I gained 2 back over the Superbowl weekend. I’ve started again this week. I’m wondering will I keep losing if I eat the 800 calories during the week and eat regular during the weekend?

    1. This is exactly what I don’t want people to do. Do it for one week to jumpstart your fat loss and that’s all. Don’t make it a weekly thing.

      1. I greee. I ddi that with the fat fast and it wrecked me. I am only on day 3 with this but already feel really well, motivated and have cleaned up my diet big time. I’m really inspired to add running again next week when it’s over (it’s been a year+ that I have) and continue on a good path. I’ll just be upping my calories but staying clean and also continuing the weight training. I’m super, super grateful for you and feel like I cracked some code. 🙂

  6. Hi,
    I am a 20 year old 5ft 10 female and I weigh 215. I have lost 105 lbs in less than a year by not drinking soda or anything, but water, walking 30 mins a day, doing 30 mins of exercise, and I am obsessed with calorie counting. For this month I have stopped eating junk and fast food and I have already lost around 5 lbs in a week, but I try to eat around 1,200 calories a day in healthy stuff and I want to get to 200 or under in a month. I would like to try your plan, but I do not have a way to a gym and the only weights I have are only 3 pounds…so how would I be able to do this?

    thank you! (:

    1. It’s possible, though you may lose some muscle which isn’t good. You can do some intense bodyweight workouts or get some heavier weights.

  7. Hi .. I have to say I enjoyed reading this blog and comments, but do not agree with everything your suggesting for advice and facts. First off yes low calorie intake is obviously the key to any successful weight lose plan. But problem number one with this guide is that a continued extreme low calorie diet like this wil shift your bodies metabolic rate basically into starvation mode causing it to store any fat consumed not burn it. The way to avoid this is tricking your body by every 3rd day shifting your caloric intake to say 1400 if your targeting 800 on the other days. Also eating one meal a day is proven to slow your metabolic rate greatly. It’s been proven time and time again that a constant food source ie. 5 or 6 small meals a day keeps your rate elevated all day, hence burning more calories.You are absolutely correct though that the resistance training will prevent muscle lose. I would recommend the changes though that I’ve suggested. It’s proven successful for me losing 35 lbs in 30 days. Just keep in mins lift lift lift !! And good luck to anyone trying to lose that stubborn weight! It can be done, if you want it !!

    1. I have talked the “6 meal per day” myth to death on my site. There is no empirical to suggest that eating 6 meals is more effective than 1 meal per day.

  8. hi there
    really interested by this article. im 5’5 and 125 pounds. looking to loose 10 pounds for my holiday in 15 days time. do you reckon this would be possible on the 800 cal diet for 15 days?? im in the gym at least 3 times a week and run up to 8k most times i go, but although im toned im struggling to slim down as i get so hungry from running so much. i have a full time job where i get to sit down for about 45mins in a 9 hour day so im always on my feet.
    would really appreciate your thoughts. not losing this weight just isn’t an option, ive just left it a little last minute hence the urgency.
    look forward to hearing from you
    thanks alot 🙂

  9. Why dont people read? The rules are simple 800 calories per day , plenty water and 3 days resistance training with heavy weights NO CARDIO. It doesnt matter what you eat over how many meals as long as it’s 800 calories per day! If you have no weights do squats, lunges, pressups, deadlifts. Try this:
    http://www.livestrong.com/article/209320-the-best-exercise-to-build-muscles-without-equipment/
    or with weights
    http://dualfit.com/5-compound-exercises-that-guarantee-results/
    NO CARDIO and no longer than 1 week as its too extreme for long term.
    Stop asking ridiculous questions about the simplest weight loss plan I’ve ever read.
    I will let you know how many pounds I’ve lost 1 week today

      1. Has anyone apart from yourself reported significant weight loss? I think we need more testimonials on here. It makes perfect sense to me I can’t wait to see the results a week today. I like steak! haha but i’ll probably stick to turkey/chicken/fish to keep my calories as clean as possible.

        1. Amber steak is great for building muscle and tone. Why don’t u consume steak and eggs as then you’re getting the vital fats and protein to build and tone muscle

  10. I lost 12lb in 7 days 🙂 Now I have worked out that my MBR is 1500 per day so I’ll have 1000 calories per day and continue with the weight training. I’ll check back in next saturday.

    1. Thanks for updating us Amber! I’ve started this diet on March 1st and I hope I lose 10 lbs!!!
      Weight March 1st: 169.6 lbs
      Weight March 3rd : 166.2 lbs

        1. I’m finding it a little tricky and I dislike eating once a day, but I keep reminding myself that it’s only for 7 days. Tomorrow is my last day and I’m sure I’ll hit the 10lbs lost! My clothes are feeling looser as well!
          As for weight training all I’m doing are simple dumbbell and bodyweight exercises.

          Weight March 1st: 169.6 lbs
          Weight March 6th: 161.1 lbs!!!!

        2. Hey Amber,

          I am so chuffed!! I’ve lost 10 lbs with this diet ( added one extra day) was famished by the end of the week but it was so worth it to be ( barely) in the 150’s again, I’m starting a more sustainable weight loss plan now of 1-2 lbs per week using Intermittent Fasting & Barre exercises, my goal is to weigh 130 lbs ( I’m 5’7)

          Weight March 1st: 169.6 lbs
          Weight March 9th: 159.2 lbs!! 😀 😀

  11. I am excited to finish this diet! I started on Sunday March 3rd weighing 124 lbs. Hoping to lose 10 lbs by next Sunday. I’m pretty motivated so I am sure I won’t fail. I will update when I am done and let you know my results.

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}
540 Shares
Share389
Tweet
Pin151
Email
WhatsApp