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

=================

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. Keith your a fucking idiot. People, Did you gain that much wait in 7 days for the desire to lose in 7 days? The answer without bullshitting yourself is no. You did not gain over night therfor will not lose over night. Patience, hard work, balanced diet and a great sex life will, 100%!

    1. Uh I hate to be the barrier of bad news to you Mr. Jones, but this diet is spot on. It works like a charm. I think you should give this man an apology for the way you came on. I lost more than that. Yes I know how to maintain as well.

  2. Hey thanks for a great article alot of great info!..quick question when you say that during the week of this your intake should be high in protien could u give a ideal number in grams a day for the entire week?

    Thanks so much!

  3. Hey Keith. I am on day 2 of this diet. Well finished day 2. I think I went over a little yesterday so I shall cut back my calories on my rest day over the week to gain the balance of 800 a day.

    Basically I went to a full body weights class yesterday at the gym and it killed me. It was an hour class. My whole body aches and I can’t bend down. I know it will go in a week or so I’ve been through this everything I get into weights etc but what should I do about lifting for the remaining two sessions as guided for the rest of the week?

  4. While i do agree with an 800 calorie diet, There is just so much misinformation in this article. Protein doesn’t make you feel full, fiber complex carbs. are responsible for that. Protein isn’t readily converted into energy. It goes sugars->fats-> proteins, if a human body is EVER converting protein into calories(atp) you are starving by definition. Eating more protein wont make a difference in fact you’ll likely excrete quite a bit of it.

      1. He is correct. If you read any kind of medical literature with regards to starvation, you body burns through whatever you ate that day (sugars), then into your fat reserves (body fat), and once this is gone, you body will utilize organ and muscle tissue to create energy, which is by definition starvation. You will die. Unless you are severely under weight you can easily go a week without food. Normal weight people can go up to a month in extreme circumstances ie you are stranded without food. By questioning a legitimate definition of starvation from your position of power is a dangerous game for you to play. You are here to help people.

  5. I have a question that might sound stupid but I am not kidding when I ask this BUT can you have a glass of wine IF it is within the 800 calories for the day??

  6. Was looking forward to hearing Krystinas progress before i started this, but i guess maybe she forgot to post back. I’m a 26 year old male, weighing 210 at the start of this, going on vacation to visit a friend in 2 weeks so thought I’d try a crash diet to shift as much weight as possible. Just started day 2 and lost 3 lbs so I guess its a good start. Ive put together a daily ‘food allowance’ you could call it, that has around 840 cals and 104g of protein. If anyone is interested I’ll post it on here. Yesterday I under ate and only had around 550 cals and 84g of protein but I’m going to try and have the full amount in future. Wish me luck and I’ll try and keep you posted!

      1. In total I lost 8 lbs over the week. Only lifted weights once after I injured my shoulder in the first session, so maybe I could have gotten to 10 lbs if I’d done the full training. Even without the weight loss I now know I can follow a strict diet which will hopefully help me in the future.

  7. So I started at 212 and got down to about 190 to about 18% body fat in a few months (I had some muscle mass to begin with) through eating in the 1800-2000 range. Would I still be able to do this plan?

  8. how much proteins in grams should you eat that one time you eat ? Should i just triple my proteinshake for one week?

  9. From personal experience I did a similar diet after I had my son only it was more drawn out due to the amount of weight I wanted to lose from having children and chucking out for 2 straight years. I am 5’7″ and started around 180 and followed a 900 calorie diet and never eating past 6pm regiment. Within 5 or so months I weighed in at 115. Having two small children and constantly lifting them I didn’t have much time for the gym but I’m sure it would have pushed my goal weight in a shorter amount of time and I kept it mostly off for 8 years until recently when I had surgery about 9months ago and gained a whopping 30lbs. I just started this diet again yesterday already knowing it will work and my weight training as well. For all you sceptics out there, this DOES work aND will help you change your eating habits to achieve permanent weight loss. Keith is spot on with eating one large protein filled meal. I would also recommend a sugar free jello cup here n there when u just can’t handle the hunger but it soon becomes unnoticeable. Also while weight training would recommend taking amines and a solid pre-workout (hyphy mud by kali muscle is my fav!) to replace the energy you are losing by your calorie deficit. Great job Keith 🙂

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