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

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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. Because you will already be losing the calories or on calories oplus you wil be so weak pass out on treadmill no stenous dont workout at all for one wek while yo are doing the low calorie go back every other day after you lose 10 pounds bt notbefore you will pass out stay away from gym while you on low calorie its hot weather will make it worse

  1. I’m wanting to lose 10 to 15 lbs, I’ve been trying a Keto diet, what are your thought on healthy fats like avocado and nuts? Too many calories? I currently weight 138

  2. Been limiting my calories for almost 2 weeks already. Does 1000 calories (max) per day is fine for a 20 yr old me? Im currently 160 pounds. Pls answer. Thanks!

  3. Amazing. I have definitely done something similar a few years back. Noting that we should forget these silly crunches, just wondering if you have any recommendations for toning this shifty gut that has appeared to bloom ever so? .. Heavy lifting is happening! 🙂

  4. Numbers don’t match. Need a caloric deficit of 35000 cals to lose 10 pound. If your TDEE is 2200 (198 lb guy), it’s 1400 cal deficit per day. So will take 25 days to lose 10 lbs on this crash diet. (3500/ 1400).

    Explain.

    1. Is this a joke? The guy took my entire blog post and posted it on his quora answer.

      Look at the site link he posted, it’s just trying to sell you fucking treadmills.

      It reads slightly different because he clearly ran it through a piece of software that rewords sentences and paragraphs. And not to mention it reads like absolute shit. In the online marketing world, it’s called article spinning.

      “It would be ideal if you take note of that the accompanying arrangement can be utilized by both men and lady.”

      Who the fuck writes like that.

      Whoever posted that answer is a fraud.

      P.S. Fun fact. The guy on quora stole the image. The guy in the pic is actually justin lewis – https://www.uel.ac.uk/discover/professional-services/health-and-safety (scroll down). A little reverse image search is helpful, learn to use it.

  5. This was really funny and interesting to read, but no lie the picture of steak you used really didn’t look appetizing XDXD

  6. I’m 18 and because I’m quite short (4″11) my BMR is quite low i’m guessing around 1300? I’ve got a couple of kgs I want to lose (currently 55kg goal is 45kg), do you think i should maintain 800 calories for more than a week? I’m not sure whether bumping it up to 1000-1200 would help me lose weight although it may be more sustainable, would appreciate your thoughts!

  7. heres my story:
    In around june I was 75kgs (im 14 by the way, so yea…) i took the initiative to loose weight (for many reasons, my health, my apparence and beacuse i really liked this guys), anyway in the firt five days of eating healthy, cutting all sugar and eating under 1000 calories i lost 5kilos in 5 days. I took a two month break beacuse i had to study for this big test, lucky i was able to maintain that weight. Then i started again just eating healthy and under 800 calories. I have lost another 9 kilos in the course of two weeks (i am now 61kg). I dont reall have a big love for sweets anymore, and till this day im gonna keep losing weight till i reach my goal of 55kg (another 6kgs to go)

    so there you go my story, just remeber to achieve goals all you need to do is work hard.

  8. Interested to give this a try because I need to lose 4 kilos in one week.

    How many grams of chicken breast and how many grams of veges would you have per day for 800 calories? I wish we could all just use kJ! 🙂

  9. So I’m 15 (almost 16) and I weigh somewhere around 46 kilos. I’m pretty short. I think I’m “fat” because people have caused me to believe that. I’m a cheerleader (a flyer to be exact) and I have been told I needed to lose weight. So I have been doing a “diet” where I don’t eat anything until a least after 2pm and then I eat around 100 calories for a snack, then don’t eat until dinner. My dinners are usually around 200-300 calories so that’s only 300-400 calories. Then I sometimes eat fruit (around another 100 calories worth) then I have ice cream (120-220 depending on which kind I have) so all in all I eat around 800 or less calories. I’ve lost 3 pounds in the last couple of days and I workout as much as possible

    1. I’m the same age as you. I have lost 10 pounds in the last 5 days. I eliminated lunch and all snacks and don’t eat after 5pm. Also eliminate ice cream. It doesn’t help when you want to lose weight. I do cardio and weights. I exercise 4 times a week for about 30-45 mins. Good luck.

  10. Hi I’m 16 and throughout the School year I gained ALOT of weight , about 20kg! I’m a stress eater. And I tried losing in the summer vacation but failed , as of now I’m still at 80kg ( I’m 1m 72cm tall = about 5.64 feet I guess) And I feel ashamed of my body , so ashamed that I never went swimming because I didn’t want people to look at me. I do not even fit in my old swimming shorts , which I fit in a year ago. I even have these weird stretch marks on my thighs that don’t seem to fade away which is an even bigger reason to lose weight.
    Now school is close , only a week from now and I heard we will go swimming again every 2weeks , so I really want to do something about it. Hopefully this works!

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