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. Hey Keith

    Have you seen the snake diet on you tube. That’s even stricter than this. What you think of it

  2. Hi Keith,
    I’ve been losing weight slow and steady for a yr now, (60 lbs) hit a plateau in Feb, and then gave up for awhile. Would this diet be good to try to break the plateau and get back on track? I’m trying to lose 20 lbs in 6 weeks to fit into a stupid bridesmaids dress. Thanks for advice you can offer.

  3. This is hilarious!! I found this article because over the last week I’ve been losing a ton of weight (for my body frame). I began at 152 and now I’m 146.5 (I’m 5’6”, very muscular female). I worked out 6 out of the last 7 days, all weights and no cardio (ok, maybe some walking and light hiking). I had been stuck at 152 for about 2 months. 5.5lbs down from eating 800 calories (or less) has worked for me. I feel amazing and look amazing. My muscles are really showing much better. So yes, eating and exercising this way does work. But it’s no way to live long term, just like you said. Honestly, I was just sick of being stuck and wanted to push my mental capacity. I wasn’t home for the week so I wasn’t tempted by the pantry or freezer goodies (of that fresh cashew-coconut butter I made a few weeks back). Thanks for a fun and informative read!

    1. I wouldn’t eat bread bc it can make you get more round on your hips, also watch out for anything with high fructose corn syrup, that is extremely fattening

  4. I’m 18 and just graduated high school. Me and a few friends are leaving for a trip in a week and a half. I’m 5’9 180 pounds, I just want to look decent in the pool, will this work?

    1. this is not magic. If you do this, you’ll lose some water weight and some fat but it’s not magic. Do not expect magic. This is not magic.

  5. stupid question, but when you lose weight, you lose weight all over the body, right? not just in one specific place? next to a big stomach, i’ve got pretty big love handles and was wondering if i’d lose weight there as well?

  6. I need a grocery list do you have one because When I get in that store I don’t know what to buy to stay on a diet can you give me a list
    Please

  7. Hi Keith,

    I previously posted a comment and it doesn’t shoe up.
    I love steaks ! Is there a ratio to keep regarding protein vs fats for the one week diet? I can’t wait to try it. Your articles are hilarious and so very helpful!

  8. Keith,
    I wonder if the metabolism goes into starvation/store mode when I go on a low calorie week long switch.
    I’ll
    Day, I lost 6 lbs in the last 6 weeks and I dropped 2 additional lbs since I switched to high protein once a day ( last 3 days!) Amazing!
    Thank you for your replies!!!

  9. Hi Keith,
    I am 5’7 weighing in at 172. I have been trying to go back to my 140-145 frame. I played soccer up until last year and due to an injury I stopped playing and therefore weight gain and the cellulite that came with it did not help with the depression also losing our baby two years ago did not help. My husband is deployed at the moment and I would like to get back to that weight. I have tried working out like biking so I wont hurt my knees with the weight that I gained. Will this help me out with starting the weight loss by october?

    Thank you so much
    Aimee

    1. yes this can work as a jumping off point, but there’s still a long path between now and losing 30 pounds. Be ready for that.

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