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.
=================
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.
Hey brother, i m 19 running. So there was my farewell, so i should try this diet? Bczz i m done with puberty thing. And i m a vegetarian, so will u suggest me a diet with veggies?
that’s fine, but you need to get protein as well.
I wanted to know because i have neuropathic pain from neck surgery and unable to lift weights. Is there anything else that would help. I am 40 years old. 4 feet 8 inches and i gained 40 pounds since my surgery 2 years ago i am now 165 pounds.
you need to talk with your doc or a therapist about what exercises you can do. Just don’t let your diet go to shit.
Thank you I will talk to my doctor and probably go back to P.T. It’s hard to change eating habits for me so quicklu. I am such a picky eater. Most foods I do eat are high carbs. I am starting on my sugar. I lost 4 pounds since the 8th. I have cut my soda intake by half and no junk food. I will continue on the sugar and find some good meals plans to lower carbs and increase protein. Thank you. This is first time in my life that I have ever needed to lose weight so I know it will be challenging but I accepted now that its needs to get under control.
I’m 18, and weigh 147 pounds. I want to lose some weight before college and I don’t want to gain the “freshmen 15”. Would this be a good diet for me? And thanks for the info! 🙂
if you dont want to gain the freshman 15 then dont do shit that will make you gain the freshman 15. It’s not an inevitable thing. It only happens because people make poor decisions in college.
Im trying this out, on my third day now. Wanted to know why can I not run on the treadmill?
you’re eating so few cals, that you dont need to do cardio
How much have you lost?
I LOVE you❤❤❤
Shave your pubes!! & pic of steak
You totally get my mindset
You sold me when you said Unicorn shit…….. I talk sailor so I can relate to your verbiage. I need scientific evidence to see if this works, and you provided it. So now it is time to get off my lazy arse and work the magic . Thanks for providing me with the necessary information to succeed in my weight loss journey……
So many young people commenting. If you’re a young person, PLEASE-
Focus on making healthy habits in your life right now. This guide is clearly intended for adults who are responsible for their own decisions.
Like other people said, talk to your parents or doctor. Cut out junk, drink a lot of water, focus pn loving yourself. At 14 you shouldn’t have to worry about weight. You’ll grow more. Five years from now you should be looking back and remembering the good times you had, not how you hated your body and wanted to starve yourself.
Anyways-
This reminds me of intermittent fasting. I’ve done this kind of 7day super low cal diet before. It’s really helpful. I do them maybe twice a year with a few months inbetween each one to give my body time to adjust and recover.
Be safe everyone!
Hi im 14 and i do not know why you would post this i aready now all of this, im not fat but im not skinny either, and wein i go school and see almost all the girl really skinny, i look down and and see a bomp and say to my self why cant i lose it, i do not eat junk food, i do not eat meat, weil i do eat chicken i skip lunch and berfast, so why am i not skinny, im starting high school next year and do not wont to be so ashamed of my own body and be only able to wear baggy closes, so i understand what your saying but for a lot of use we just wont help to be skinny not reasons that we should not care about it. im sorry if i sound rude but i am just speaking from my heart ok.BYE:)
I had a heart attack two years ago this month and last May had esophageal cancer surgery. I am 47 years old and weigh 218lbs. How can I do this and get back down to around 175-180? Thanks
the same way as anyone else. Make sure you’re in a consistent calorie deficit. There are no tricks or hacks to this. Just consistency.
Iam 40 1 weight 1o4 kg i eat corn flour with tea at night and in morning i eat weat flour bread with tea and in afternoon i eat 2 or 3 fruits and i walk 5km in morning and 5km in evening is this a good diet shall i continue this
where is your protein, as the article stated focus on high protein??!?
i am 13 years old could this still work for me trying to get in track shape
no no dont do this
How is it with sugarfree sodas during the fasting? Will it increase cravings or will it be helpful? (The same question goes for sweetener in the coffee??)
zero calorie sweeteners are fine.
I am 21 and weigh a good 270ish… I just recently started the gym. Would doing this fast be helpful? I run on the treadmill and also lift weights. Feedback would help! Thanks!!
yes it would work well for you. Just dont look at this like a quick fix, you still have a long road ahead of you after the first week.
Is it okay not to eat any meat
sure, but you need protein from somewhere
i have a really important question ….. will this slow down my metabolism ? because i’ve heard that eating low calorie will make the body in a starvation mode which lead to slowing down the metabolism
not if you only do it for a week. Also you’re only 16, you dont need to do this
i know you are saying no cardio, but i do 20-30 min stair master prior to workout (honestly because this has been the best at improving my legs and butt (especially my butt, it has toned and shaped significantly from this alone)) im not doing it at any faster rate then an 8, can i still keep doing this or do i need to stop for the week.
800 cals puts most ppl in an extreme calorie deficit. WHen you’re in an extreme deficit, it becomes very difficult to train hard. That’s why i rec ditching cardio during this time.