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

July 7, 2022 | 3729 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. 

3729 Comments - Leave Your Thoughts

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  1. Alright dude, I’m going to give this a try starting Monday. I’m 40, 173lbs, 26% BF. Lots of belly and love handles. I started a program last week 1500cal high protein diet, heavy compound weights 3 times a week, and HIIT twice a week and basically just supplementing with coffee and green tea. I’ve dropped a couple of lbs as expected and haven’t been uncontrollably hungry. But, I want faster results so I’ll give this a try. I’ll check in and let you guys know how it turned out.

  2. OK, so it’s Monday morning and it’s time to kick this off. On the scales first thing and I am 171.7 lbs, 25.1% BF. Wish me luck!

  3. Loved the article. Thanks for posting.
    But how much weight lifting is required.
    I am 32 years old. Female.
    185 pounds
    Height is 5 feet 6 inches

  4. Hey man was wondering if you can have a look at my plan and see what you think and hopefully give me some pointers. Ive been dieting since 1st march (3 weeks) and have lost 25 pounds doing 800-1100 calories a day, doing IF 19/5 and two 24 hour fasts (mon & fri) currently weighing 255 pounds so still a long way to go, currently lifting only dumbbells at home (15kg), macros are 55pro/30fat/15carbs and the only carbs im getting are from veggies

    Just wondering if you could give us any advice on anything i could improve on?

    I also forgot to mention I have incorporated a carb reload day every second Sunday to stop the fat loss plateauing.

  5. I’m on day 3 of this diet, and I have lost about 2 pounds per day — 2.2, 1.7, and 2.4 lbs according to my scale. I am staying under 500 calories, and also lifting a little (2 sets at max weight, plus some pull-ups) each day. I am actually eating two tiny meals per day, which seems to work for me (I am hungriest in the afternoon). I started at 160 lbs and 16% body fat. So far, so good.

  6. Hey Josh, 2lbs a day! if your only 16% BF, only eating 500cal/day, and being that active you might be putting your body in a catabolic state. Just a thought, I’m no nutrition expert.

    1. Hi Alan. That may be. The diet was pretty extreme, and by day 5 I was feeling unwell and had to eat slightly more. I learned to distinguish between feeling hungry and physically being in need of nutrition. Days 3 and 4 were the easiest, as the feeling of hunger had died down. I lost over 11 pounds in 6 days, then took about as many days to put the weight back on as I binged on carbs while visiting my family. It was an interesting experiment.

  7. Half way there! I found the first couple days brutal. I was crazy hungry especially in the evening. Thank goodness for green tea. I am now 168.2lbs and 24.5% BF. So I lost 3.5 lbs, 2 of which is fat. I’ve dropped a notch on my belt so I think this accurate. I’ve also been able to increase my lifts a little in the gym so I don’t think I’ve lost any muscle.

  8. i am 15 years old, and i really would like to lose body fat before the summer. i am about 155 lbs and i’m 5’4. i really would like to try this diet because i am very embarrassed of my body and i need help. i would like to go down a few bra sizes as well. please, write me back!

  9. I am 6’4″ 265 , sounds fat heavy, but I am very solid, at a glance no one ever comes close to guessing that i weigh that much, very well distributed. I want to surprise my wife while she is away fro the next 7 days and drop some pounds. I am home all week with my kids and have the opportunity to fast as needed since I am not working, well 7 kids at home I will be working, just a different kind of work. I may have moderate binge eating habits throughout the week. I can easily eat 4k or more calories in a day with out batting an eye. This is a disgusting habit and I am working on curbing it and have reduced the frequency that I do so.
    I have weights at home. I will be starting this right now, and I will report back with results at the end of 7 days. Any advice or tips would be greatly appreciated.

  10. Im 12 i weigh 125 pounds and im 5’3. Can i do this? I really dont like how i look. My legs are huge and so is my stomach. So hopefully this works!!

    1. what the hell is wrong with all these kids!!!

      YOU are 12 your body is at its prime for molding, DO NOT DIET!!!

      hit the gym and you will see result in no time, and eat healthy DO NOT try this at your age!

  11. What diet would be good after you do this fasting diet? I’m 19 years of and weight 213 pounds and am currently 6 foot. After I do this diet what would be good to continue the weight loss in a healthy way?

  12. Hey I’m 15 years old in 5’2 and weigh about 122 pounds and my legs are very thin but my stomache is larger and I have a little muffin top and I wanted to get my belly fat away do you think I can try this diet?

  13. Glad that’s over! Happy with the results though. But I must say, if your under 16 and not happy with your body image go see a trainer and your doctor and do this the right way. You could do some permanent organ damage doing this. It’s not worth it, don’t take the short cut. I lost 6.2 lbs. don’t sound like what was advertised but this is what I expected because I had already dropped a lot of water weight. I went down to 24%BF. That’s 3.4 lbs of fat gone in one week!

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