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. Did a very similar plan as you describe two years ago to Jumpstart my weightloss! IT WORKS FOR A WEEK TO 10 DAYS, ( Have actually fasted for 10 days on just water) It won’t kill you! (Have gone from 320 to 270lbs and waist 50″ to 41″ in two years & heading for 195 and 32″ waist at age 68.) No bread, cookies, cakes or sweets of any kind, no juice, no potatoes, rice, grains., cereals Lots unsweet tea, coffee w/no sugar, water, water, water, green leafy veggies, beef, chicken, fish, nuts, seeds, fiber, I have a cheat day each week where a thing in moderation is allowed) and desire not to die early from obesity, and the pleasure of having to buy new pants all the time. Bought a green drink machine advertised on TV AND every morning have a drink. Oh and Vitamins also!!

  1. Hi Keith, like your plan but confussed why you dont want anyone to treadmill? will it backfire or what? please elaboratre…i looked to see if someone asked this question and did not see so sorry if its a reapeat.

  2. I’m 5’2 and my weight fluctuates around 112-118 on average, I have “big legs” and pretty round calves which I guess are pretty muscular. I want to get skinnier legs? I feel like my weight just doesnt match my body image. Any suggestions?

  3. Hey Keith! I love how incredibly straight up you are. We need more people like you! To make a long story short, I basically have been “binge” eating, for a lack of a better word, post-divorce, for about a month and have gained about 15-17 pounds, which I so desperately am trying to loose ASAP! I am far from “fat”. I just feel like a big BLOB, very bloated, feel like I am retaining a lot of water, etc etc. I am kind of on the same boat as the post Kaitlyn posted. Around the same height, weigh less though. My body does not look like what the number shows, ya know? My clothes are fitting me weirdly and I just feel so not myself. I have never ate so much as I have in the past month! I just want to lose the weight I put on QUICKER than I put it on. I came across your posts and want to THANK YOU!!!!! I want your honest opinion — doing what you posted, will it work on someone who is quote un-quote NOT overweight??? Someone that is “small” to begin with??? PLEASE REPLY ASAP!

      1. Thank you sooo much for your quick feedback and honesty!!!!! You are awesome!!! My last “binge” eating was yesterday. Today is a new day, a new start, the beginning of the new me! What do you mean I won’t lose as much weight? Because I am somewhat “small” to begin with? I need my “revenge” body back haha I really need to detox all of these toxins that I have caused to build up secondary to my emotional crazy eating for a little over than a month. Any ideas or suggestions??? Do you think just doing the 800 calories per day will do that, or should I do kind of like an intermittent fasting thing for sometime??? I need to lose this fat I put on and the bloating and all that nasty stuff from the junk food! In about two months I am seeing my ex husband and really want to get back to my “normal self”. PLEASE HELP!!!!!

        1. Kathryn – you could loose up to 10 lbs in 2 weeks. Correct Keith? She just has to be patient and do the correct steps. Just my two cents. Take a deep breath and give your body sometime. If you are motivated, which it seems you are, just stick to a very strict program. Keith knows best, but that is my advice.

  4. I am 5’0 and weigh 153 pounds and non of my clothes fit me like they used to I used to weigh 112 and I would like to loose some weight before I start college and I don’t have a gym that I can go lift weights at is their any advice for me? IM DESPERATE!

    1. I have at home weights that are 3, 5, 8 and 10 pounds and I use them to lift at home. I also have a fitness bench that I got off of Amazon to use during lifting.

  5. HhjnbI am 18 and I am 5″4.5 and weight 117.8lb but look fatter than what I weigh, how much weight by estimate could I lose in a week? And where do you think I will lose the weight?

  6. I am a 43 year old woman around 5′ 6″ in height (a little taller)… I currently weigh about 67 kg (147.4 lbs). I would like to lose as much weight as possible in 10 days. I have very strong and sturdy legs (can do the stairmill on top speeds for an hour without issue and do the maximum weight on the calf press machine at my gym) and used to be very, very fit and trim, but a bout of health problems requiring surgery and recovery which included very little movement at all (lying face down for days on end) and taking steroids has kind of screwed with me. My muscles atrophied, I gained weight, especially on my torso. I would really like to to get back to my former self, but I seem to have trouble losing weight now no matter how hard I work out. Will this plan work for me and how much weight do you think I could lose with it? Also, I have some restrictions on how heavy of weights I can do. I am not supposed to life or push heavy objects anymore. I am more limited to cardio exercise more than I used to be – unless you can suggest some alternative. ..what can I do in terms of exercise to get as close to the results of this program as possible? Will it still work if I do cardio?

    Thanks in advance for your advice.
    Laura

  7. In your article you mention eating a lot of protein, can you recommend any specific meats you think would be better to consume vs others? Maybe Fish, lean beef, chicken, egg whites etc? Or just stick to fruits and vegetables? I’m 5″7, I weigh about 175ib. Goal weight is around 135ib-140ib. I don’t expect to lose this kind of weight in one week but this seems like a good jump start diet to get me going.

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