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. Hi Keith

    Having a 3 Egg White Omelette with a pinch of pepper has 52 calories, a Large Carrot 30 calories, a Large Apple 120 calories.

    I’d have the omelette in the morning after my work out followed with around 1.5L of water with lemon juice through out the day. Dinner would consist of the apple and a couple carrots totalling the daily calories to 284. I’ll say 300 calories because of the olive oil is use to coat the frying pan in the morning.

    Would this be a solid plan to commence? How risky would this diet be? Your not a doctor fair enough but with the experience you have with the Army and it’s rationing I’d like your feedback.

    Thx

  2. What if I ate 800 calories, then I burned off the 800 calories. Do I eat more or do I just strictly stay with the 800 that I’ve eaten.

  3. I have been doing 1 hour every other day, really pushing myself using every muscle with 10kg weights. Getting the heart going and a sweat on and eating 800 to 1000 calories a day. How fast and how much will I lose do you think?
    I am 5ft 3in and 11 stone. Very much wanting this extra fat GONE! I want to get down to around 8 stone at least! Do you know how long this will take?

  4. I’m wanting to loose 2 stone of baby weight I went spinning 6 times a week during pregnancy and spin now still 7 times a week but I didn’t eat well in pregnancy o lift weights twice a week going to reduce to 800 and lift weights can I still spin I will have energy as I have done it for years ??? Rebecca

  5. I have been doing something like this challenge for approximately 5 days. I only eat eggs, broccoli and fish along with some green tea (recently i have tried protein shakes).

    I have been doing pushups, situps, planks and running 5 miles to 9 miles a day. The first day I lost 3lbs, 2nd I lost 2, 3rd, 4th and 5th I lost about a pound to a pound and a half. I am now down 10lbs (210 to 200). On average my running calculates that I lose between 650-850 calories and during the day I assume I lose more from daily activities and working out so my question is: 1. what I am eating is it ok? 2. What should I aim for in the 2nd week and should i eat more than 800 calories per day? I am taking a B2 vitamin, drinking coffee and taking a bite out of a pepper every day when I wake up along with about half a gallon of water to a gallon (all to supposedly boost metabolism).

    Please let me know if you think I’m “on the right track” or if I’m off the wall crazy.

    1. 1. Seems ok but I would probably get even more protein. Supplementing with protein can help on extrememely low cal diets.
      2. Bump it back up to the point you’re eating about 10-12x your bodyweight (for your daily cal intake).
      3. The pepper thing is total BS.

      1. Thank you for the info. Really an informative and helpful article. will surely share this. looking forward for more articles like this. Thank you once again.

  6. Im 142 lbs 15 yrs old wanna lose more weight and lost a lot since i tried thi. works great expecially with sports If i eat just dinner and keep working out abd continue soccer and softball would it be safe?

  7. This will be a challenge for me, I have R.A. just came off a month of prednisone for pneumonia, eating was out of control. Must loose this prednisone fat. Thanks for the advice! I’m 50 something which is the new 30 something, so these 15yr Olds are the new 20s,hard headed as hell. …I can do a week! Hooah!

  8. I’m veggie and am eating only fruit and veg and soup every day. Only one bowl of muesli with yoghurt per day added to that. Working out the muscles 3 days a week but also some cardio every day. (Running, biking)
    Am I doing the wrong thing, since you say no running allowed? Why is that?
    So far feeling great, not hungry. Keep crunching carrots whenever I feel like it.

    1. i don’t recommend only fruit and veggie. No running b/c you’re consuming so few cals. If you run, you need to bump up your calories.

  9. Hi there,

    I am trying to lose 80 pounds by this coming May! I am currently active with cardio 2 hours a day except Sundays. I am drinking plenty of green tea and Coffee with little creamer. Am I on the right track? What else can I do to make sure I am getting my nutrients? And also, will I lose the 80 pounds by May? Thank you for your time.

  10. When you say fast for 24 hours and have a big meal of 800 cal so does it mean that plan wont work if i divide my calories intake in 3,4 meals??

      1. Started doing this from today
        Can i hv tea with 25ml milk few times during day while fasting and can i put zero calrorie sweetner in my black coffee??

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