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:

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.
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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.
I hate it
I would like to try this but my thing is I don’t eat meat I get my protein from A Whey powder with almond milk every morning can I still do this and what other peotein can I have
you can get it all from whey if you want
Hi sir. I was 85 before 1 year now I am 61 but my stomach it’s still same idk what I do for ?
train your abs, and eat fewer calories.
Hi i am 14 and i weigh 180 pounds and that is not good do thank sence this is just a weak thing, it would be ok if i try it, now im not stupid if i feel like im to weak to move i weil stop
Fucking retarded
Lucas as you 12? Sad.
Just coming on here to celebrate I did a Day 1 yesterday. Horray, go me, go.
Hi I am 18 and 210 pounds this is my third day following your diet and I have already lost 4.6 pounds. I was wondering after 1 week wont I gain the majority of the weight back?
some of it is water weight so a little might come back. Don’t get too tied up in the actual scale number.
I know you said to hit all the areas for weights, so does that mean so everything each day, or can I still alternate between upper body and lower body?
upper lower is great
I’ve been doing this for a year I’m 18 and weigh a healthy 75 LBS
that sounds horrible.
This work! I know because I didn’t eat for 1 week after I had my tonsillectomy not even a water 🙂 and I lost 6lbs without exercising though
You didn’t drink water for a week? How u not dead?
Shut the fuck up. these are people trying to make themselves feel accomplished, because people like you make people like us feel as if we are disgusting. Truth is it’s people like you that are ugly and disgusting. You can change ugly looks and weight, but you can’t change an ugly personality. Must suck to be you.
the person said they didnt drink water for a week. You want me to give them a trophy?
You mentioned that people under the age of 18 shouldn’t be doing this (and I get why) Though do you have any alternative suggestions? I recently started going to the gym and have been more physically active. Though I haven’t really made much progress, dietary changes of trying to cut out simple carbs haven’t been too effective. Next year as I am starting HS, it would be nice to be skinnier. I am 5’2 and wiegh 126 lbs. I know that may not be too overweight though it’s enough to make me really self conscious and skip meals (won’t get too into it so this doesn’t become a pity party). I guess I just want a solution so I don’t hate myself xd. If you could respond it’d be appreciated.
Starting HS? So you’re like 13/14 years old?
You said you’re starting to be more physically active? Keep that up. Don’t eat too much junk food. You body is still changing so give it time.
You fucking sexy beast, Keith.
thank you
I am 73 and battling with my weight. I’m 5ft.o have bee told because I’m short that I should have only 900 calories a day.
I’m still gaining weight!
I am planning to join awater exercise group at the Y. Or would it be better to go to the gym?
I am weighing in at 160.
OMG!! I DO NEED HELP and encouragement.
Am I too vintage to try this extreme plan ??
what’s your current diet right now? the exact workout you’re doing doesnt matter as much as just staying active and not injuring yourself.
I do this. 800 calories or less plus 2-5 mile brisk walk every day…will lose a stone in a week x although I don’t do weights…there isn’t any way I’d lose as much if I didn’t exercise…it’s really important.
After fasting for a week…if I make a mistake and have junk food….I feel terrible. I can’t wait to get back on a fast and detox it all away x
It’s a great kick start diet! I’m losing weight and plan on trying keto after the week is done .. I haven’t weighed myself & probably won’t but I feel better. Thanks for advice
Yah just on here to do graduate myself of a Day 2. Past the weakness point of the day. Well it’s bedtime. I recommend you eat just before bed so you ain’t wandering around through temptation and also the full “time to fall asleep” feel
Congratulate —you get the point