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. No they dont! I’ve done this exact weight loss plan for one week! Lots of eggs and steak! Weight lifting. Nothing to crazy! I lost 12 lbs. In one week! I’m gonna start again right now! It really works! People! Stop trying to change the plan to meet your lazy needs!! Just do it! 7 days out of your life! My God! Keep It Simple Stupid! Thanks!! Janelle!!

  2. I think it will reduce the rate of metabolism and when it comes to normal after 1 week it becomes very difficult. The people tend to eat more food and get digestion problems and unhealthy circumstances.

    1. False. I did this and lost a ton of weight. I lost a total of 40 pounds in 3 months with the first week being this very diet. If my memory is correct I lost around 12 the first week. I have gained back 10 is all. The only reason I have gained back 10 is because I eat like crap at night (like donuts and chips and salsa as far as the eyes can see). It has zero to do with metabolism etc. I’ve still kept off 30 pounds for over a year after doing this.

  3. Quick question. If we just lift weights won’t we retain water? I only ask because in the past whenever I tried strength training I pretty much was bloated for several days even if I drank a ton of water. Whatcan I do to avoid this during this diet?

  4. I did this for a week, I ate primarily steamed spinach, boiled chicken, and a protein shake that had a serving of unsweetened frozen strawberries in it every day. I lost roughly 12 pounds. I followed that week by fasting Tuesdays and Thursdays, and eating 1500 calories the other five days. Tried to get at least 100 grams or more of protein each day, eat at least one or two servings of fruit and vegetables, and I did a body weight workout Monday, Wednesday, and Friday for 45 minutes. I did that for about 6 weeks.

    When I started I was 176, seven weeks later I was 146, and much more satisfied with my physique. I’ve stopped counting calories, or watching what I eat, and sadly slacked off of the workout routine (need to get back into it) for the last three weeks, but I’ve maintained 147-150 consistently for that period of time.

    Everyone I work with asked how I was able to lose 30 pounds in a little under two months, and when I tell them, they think I’m crazy.

    It’s amazing how conventional fitness “knowledge” is so ingrained in everyone’s minds that they aren’t willing to see things in a new light, even when results stare them in the face.

    1. Inspiring story man! But come on, transformation pics? 30 lbs of fat in 7 weeks is insane progress and I salute you sir! Keep up the fitness journey 🙂

  5. Okay so I’m 17 and just reading around trying to learn… Why would it be bad to run on the treadmill while doing the 800 calorie per day diet?

    1. Hey! The problem with doing running is that you will be undergoing heavy cardiovascular exercise. This type of exercise will force your body to break down muscle to achieve the correct amount energy for the work out. This is because protein is easier to break down than fat. So during running your body will begin to break down muscle way before it begins to break down fat. The general macromolecule break down sequence (the order of what your body choses to burn) is carbs then proteins then lipids (fat). Due to low caloric intake, you won’t have much carbs to break down so your body will go immediately to proteins to get energy. (Look up long distance runners and look how there muscle to body mass is low)

      -Gary
      Pre-Med student at Baylor University

    1. Problem is that exercise burns very few calories; long ago, doctors actually recommended to stay in bed and eat less if you wanted to lose weight, lest you moving made you hungrier.

      Losing weight is about input-output, and considering that output is hard, it’s mostly about input.

  6. Started this on Sunday (so today is Day 5/7 for me) and this is the most successful diet I’ve ever been on! Im already seeing my stubborn fat areas melt away. My favorite pair of leggings finally fit again, and not “squeezing-it-all-in” fit, I mean theyre actually a little loose! It was really hard the first day but eating the high protein foods (my fave has been Greek yogurt, Ive eaten that every day) have beat my hunger cravings and I feel energized after lifting weights. My question is, how often could I do this type of extreme diet? I plan to eat a more conventional meal plan after this is over, but could I do this one-week fasting once a month?

  7. Hello

    Thanks for this! I am on day 2 and finding it fine so far. Using myfitnesspal app to help me calculate everything and getting a bit obsessed with the calculations. Can anyone recommend the ratio of protein to carbs to fibre and fat that we should be eating

  8. Hi there. I’m interested in trying out this diet but I have a question. You see I walk my dog from Monday to Saturday for 8 km at roughly 3 hrs, to and fro (he’s a 1-ft tall shih tzu so he only walks half of that, I carry him back). Is it alright if I continue to do this during this diet or would you recommend otherwise?

  9. I just completed a week of this and list 8lbs which I’m happy with. Nice little kick start to weight loss. Due to the higher protein and bulking out with salads and veg the hunger was kept at bay. Remember to De-hydrate .

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