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. Trying to lose my relationship weight. going to goa in 6 weeks. i’m 14st 3lbs now and want to lose 1.5st/2st or more in that time. would you suggest this plan for a week to kick start weight loss and then eat a little more for the other 5 weeks. if so, how many calories should I start eatting the weeks after? also, how much water a day do you suggest? thankyou!

    1. I don’t see that happening, especially at your height. I’d recommend you to start lifting weights, building some muscle and see if you like how your body looks.

    2. You could probably drop 20lbs in 4 months. Sounds like you want to look good for a special occasion. Spanx are awesome! Dropping soda and eating after 7:00pm will help a lot! Good luck!

  2. I’m an 18 year old male, and I weight 282 pounds and I am 184 centimeters tall. How much weight do you think I would lose if I were to do this for one week? I’m aiming to lose around 20 kgs in 3 months, so I was wondering if you could tell me how many calories I should be eating a day in order to achieve my goal of losing weight.

  3. Looking forward to starting today goal is 40 lbs to lose . What do you suggest for diet after week one , continue weight resistance or add cardio? Thank you so excited to get started to life changing happier me!

  4. I’m at a blistering 330 lbs and my New Years goal is to loose weight become healthier. Where do I start bc it feels like I never have time to work out and I eat dinner late bc of work. Please help

    1. You start the same way anyone else starts – taking one step forward.

      Today, drink one less can of soda. Tomorrow start adding more veggies to your diet. Build momentum by taking tiny steps.

  5. Hello,

    I am 52kgs now, I want a quick diet plan to lose 6kgs as I am 5’1″.
    Can I fast by drinking just water and heavy weight lifting?

    Kindly suggest!

    1. No definitely don’t do that. Stop looking for quick fixes and magic pills, I guarantee that will not work for you in the long run.

  6. Hi I’m currently 5’6 and weigh 157. I’ve only been eating two meals a day and just barley two I’ve lost 13 pounds in just a week. Today I had a cup of kale salad and a açaí bowl.A week ago I was close to 170 and I’m only 17 years old.ive noticed that I’m losing a lot of my weight in my legs. I use the smith machine frequently at the gym. Is there anything that can help target my belly fat and love handles?

    1. I would start doing some resistance training and some core work. You can’t “Target” love handles. You’ll lose weight over time all over your body.

  7. I just started the Keto diet 2 days ago. Is that the wrong dieting? I am 5’5 170lbs. I had my third child 12 years ago and couldn’t lose the weight I gained during pregnancy. I have a bad knee and a bad arm from a bad 4 wheeling accident in April of 2017, I need to workout but can’t do squats, push ups or lunges. Please advise, thank you

    1. it’s not “wrong.”

      But I think it’s one the most impractical diets on the planet. Can you really imagine yourself never eating carbs again? If so, be my guest.

      Otherwise you can just start by eating less in general and making healthier choices.

  8. hello I’m 45yrs old 5’10 I weight 400lbs I’m trying to do a 800 calorie diet will it work for me just asking need some help

  9. Hey… I’m Joy, 22 yrs old and i weigh 74kgs with height 5’1.. I’m planning to do the 800 calorie diet…i just needed your assistance..

    1. Which meal would u suggest to.. morning, lunch or dinner…?

    2. And what about water consumption..? will hot water be effective ?

    3. and you said to have tea or coffee as much, but does it get added along with the 800 calorie..? or it come separate..?

    4. And will normal stretching workout help in this..? Usually I’ve not done any exercise until now..

    5. after a week, you asked to multiply the weight to 10, and that becomes the calories to consume..! The weight to be calculated is in kg or lbs

    Kindly answer for everything… surely I’ll recommend this to my friends..!

    1. 1. Lots of grilled chicken and lots of veggies
      2. doesn’t matter if hot or cold but drink water
      3. doesn’t get added if you don’t add any calories to the tea/coffee
      4. It won’t make u lose fat faster but u can do it
      5. lbs

  10. I’m 59 years old. I’m 5’4″ and I weighed 211lbs. Started drinking water no sweet tea or sodas. Changed my eating habits haven’t changed what I eat but I eat small portions and don’t go back for seconds. Started walking and went to the dr and had loss10lbs. Also I am taking a diet pill called adipex. I take it in the am and I eat something for breakfast skip lunch and eats supper but small portions! Yesterday I drank 80oz of water. Do you think that’s too much water to drink in one day?? I can’t afford going to a gym. But does the walking and drinking water and small portions will that help me loose more weight?? I’m trying so hard. Please try and give me some advice! Thank you!!

    1. water intake isn’t going to affect how much weight you lose. What you’re drinking is fine. BUt I’m not a fan of the diet pill.

  11. Im 17st I was wondering How many pounds will I lose in one week if I’m only eating 800 calories a day and going to the gym all week

  12. Hello, I am 5’2 I have lost 70 lbs doing low carb and now I have those last 10-15 lbs to loose, do you think this will help? I just started going to the gym this week and plan to make it my usual routine, my question is after that whole week and your back to eating more calories won’t you just gain the weight back?

    Thanks

  13. I am 302.4 and I am 5’7. I have begun working out 3 times a week in the AM. I really would love to loose 50 pounds by June. Is that even possible? I am discussed with myself and need a change! I have begun cutting out bad foods and eating smaller portions. Am I even on the right path? I feel like giving up after just a week!

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