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.
Will this plan work for anyone/everyone? I am 140 lbs but only 5’3 and have a goal reach 115 pounds. Considering that food intake and exercise have different effects on different people, will this work for everyone?
Try it out for a week. It will work for you, but you might not lose a crazy amount.
Can I take in the 800 using high
protein low carb drinks like Animal and the rest like at dinner say steak and veggie?
i dunno what animal is but protein powder is fine. Just make sure it’s a high quality one without much filler ingredients. Also make sure to get some nutrients in as well, so eat veggies/fruit.
Hi! Love the post. I walk everyday for 50 minutes to get to work, which is pretty much cardio I can’t help lol. I will still in corporate a couple of strength training. Is that ok?
I would bump up calories a couple hundred per day then.
am gaining weight of 65bs. can I try this to am 28yrs.
65lbs? Wut?
I have 40 lbs to loose. I am doing the slim coffee diet the Am and Pm both have 80 calories in them. I am sticking to a 500-800 calorie a day diet. I’m taking the coffee, then a bar, then a wrap with peanut butter and honey then a huge salad with hot sauce and sprinkle cheese for dinner then the coffee before bed. On the 600 calorie day I do Coffee, bar, slim fast shake for lunch, dinner the salad and coffee. On the 800 calorie day I do the An coffee, bar, sweet potato with a half a cup of black beans in it, for dinner the salad then Pm coffee. How long should I do this or can I do this to hit my goal weight?
i say 800 and you do 500. Why?
Iam 60kg . If I do this for a week wil it come down to 50kg?
no
What type of exercises should I try with this diet if i dont have access to a gym? And should i get barbell weights? Or id th gym a requirement for this? Im 220 lbs 5’3
This diet definitely sounds worth trying and the writing is gold. I’ll recomment my results in 5 days
cool!
Hey, will you see a difference in your body in a week, or just numbers? Do you recommend herbal life? And can the exercise be weight lifting? Thanks!
herba life? No they are scammy pieces of shit that deserve to be burned to the ground.
You should see a diff in your body.
Yes the exercise should be lifting.
I HAVE to lose 40 pounds in 6 weeks. Is this possible? It would be extreme for now but then I can be more sensible and long term health afterward. I have been doing high protein, limited calories, and now no dairy and it’s been 3 weeks with some weight loss but not enough to think I can make the deadline. I have been doing a LOT of treadmill exercise but apparently you do not recommend this. HELP!!!
why do you HAVE to?
No it’s really not possible to do and not recommended.
Thanks for posting this!
Hello I am 16 and 5″5 weight 148 pounds am I overweight I am looking for a way to lose 5 to 10 pounds can anybody recommend anything
Eat healthier foods. Don’t follow this plan.
I weigh about 215 lbs…I want to lose weight fast by going gym…how can I lose weight fast in gym…I want to bring my weight down around 165-170 lbs..Plz help me
Stop trying to look for ways to lose weight fast 🙂
My BMI is 26 , I am around 207 pounds(94 kg) and I’m 6″2( 190 cm) …. If I follow your diet correctly for like 7 or more days , how much do you think that I’ll weight and how much will my BMI be like? I’d like an answer from you bcs you seem to be an expert in this field!
dont do more than 7 days. I cant predict how much you’ll lose. But you should lose up to 10 pounds.
Why is going on the treadmill so bad on this diet?
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