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Header - How it works Header - M How it works

Limbo is like a 'sat-nav for losing weight'

It uses real-time body data โ€“ your blood glucose levels โ€“ and gives you individualised directions (we call them 'nudges') to continually move you towards your weight loss goal.

GPS map of your body


It works by bringing together four important things:




 Active learning

Data      Coaching      Accountability      Active learning

Data comes from a continuous glucose monitor (CGM), showing you a livestream of your body's energy system: blood glucose.

Limbo sends you 2 CGMs per month, every month, for the whole programme โ€“  you wear them 24-7 to build a complete picture of your metabolism.

Band and sensor

The CGM livestreams your data into the Limbo app, giving you a real-time view of your food and energy system, and learn how your specific body reacts to the foods you eat.



Data      Coaching      Accountability      Active learning

Intensive coaching with multiple 'nudges' each day, will steer you to healthier habits.

Limbo is a nutritionist in your pocket, telling you what to eat and do, and giving both positive and negative feedback. Sometimes, it will be encouraging:

Positive nudge 2

positive nudge 3

And sometimes, the nudges are tougher, or things you might not want to hear:

negative nudge 3

negative nudge 2




Data      Coaching      Accountability      Active learning

Even better, Limbo is a coach that is with you 24-7, so there's complete accountability

Because Limbo sees your glucose livestream, and spots unusual patterns, it's hard to cheat or drift off track โ€“ you're fully accountable. This is important in cementing a new set of habits.

How it works - nudge - noticed a sharp rise


Data      Coaching      Accountability      Active learning

Limbo Loop animation


As the cycle of data, coaching and accountability repeats, you're doing 'active learning' โ€“ and the lessons turn into new habits

People learn much better by doing, not by reading books or watching videos. Doing, and repeating โ€“ practise makes perfect โ€“ is the best way to change behaviours and learn new skills. That's why people who finish Limbo don't put the weight back on.

What to expect in month 1

In the first week you begin, you'll probably see huge spikes and crashes:
Rurik - control your line 1
By week two, you'll start adjusting habits, and learn how to reduce spikes:
Rurik - control your line 2
Soon, you'll begin to flatten your glucose line and stay "in Limbo":
Rurik - control your line 3
Smooth glucose levels indicate your body is utilising stored fat for energy โ€“ and this is the key to weight loss:
Rurik - control your line 4
As you learn to stay in Limbo for longer stretches, you will lose weight, but barely notice the feeling:
Rurik - control your line 5

In a relatively short time, without the pain of dieting or gym sessions, you'll find yourself losing significant weight:

Limbo Trends screen - w border - weight loss over time


How is Limbo different from all the other methods you've tried?

There has never been a system like Limbo for losing weight before, one that sees inside your body's energy system using a CGM. Here are the key differences versus traditional weight loss:

Traditional weight loss approaches
Limbo logo - large wordmark with padding

Flying blind

Guesswork, like counting calories, leaves you hungry and unsure what's working

Visual map

Data inside your body shows you the effect of foods, and how to change

One big, unsustainable change

Make a major change, like a set diet or a 'banned foods' list โ€“ but it's not sustainable, and you backslide after you finish

Many small changes

Making lots of small changes, based on data, each hour and day at a time, is the best way to a long term goal

Temporary rules

Hiring a trainer or nutritionist, or doing a meal plan, is short term, and not a habit change, so the weight comes back

New habits that stick

Limbo nudges and course-correction 'rewires' your habits at a deeper level, so they stick long-term

Not fun at all

Because you're flying blind, you're either too hungry or you're not getting results โ€“ with no way to tell which is which 

A fun game

The Limbo line makes weight loss almost... fun? It gamifies the process of changing your foods (try it and you'll see!)

Passive learning

"Just follow these rules" is the norm with diets. You are a passive observer in the process, not an active participant โ€“ so the rules never turn into new knowledge or habits.

Active learning

With Limbo, you are involved in the process: your exact choices change your individual data. You learn by doing โ€“ and that knowledge stays with you.


What is Limbo not?

Most people have tried many different diets and weight loss programmes, so they bring assumptions on what is, or isn't, involved. Limbo is very different from other approaches, so let's clear up what is not involved:

A set diet

Guesswork, like counting calories, leaves you hungry and unsure what's working


Counting calories

Calories are an outdated concept from the 1920s. With a CGM, Limbo can now measure your energy directly instead


Mandatory exercise

Limbo is not about the gym โ€“ it's about your food and energy data. The gym is 100% optional.


A set-and-forget app

You've probably tried many apps or subscriptions, then forgotten all about them. Not Limbo. Because it is showing you, in real time, a window into your body, you'll be fascinated, and watching it round the clock.


What do I need to get started?

You need an iPhone. You can use your existing smart scales and fitness tracker if they work with Apple Health (many do), or you can buy Limbo smart devices.

SQ - Limbo appiPhone

You need to have an iPhone which is connected to the internet. We wonโ€™t have an Android app for a while.

Limbo scales or withingsSmart scales

Digital scales that connect to your phone such as the Limbo Scales or any smart scales that connect to Apple Health, such as Withings scales. They are available online, from โ‚ฌ/ยฃ25, or you can purchase one from Limbo.

Limbo band or apple watchActivity tracker (optional)

A heart rate monitor such as the Limbo Band or any wearable tracker that connects to Apple Health such as an Apple Watch, Garmin, Withings or Oura Ring.

How long is a membership?

The Limbo programme lasts one month. Start with that, make some positive changes, and only then decide if you want a longer term membership. Some people only need a month, others want support for 12 months or more โ€“ it's up to you.

Target date persona

Every journey is different. The average Limbo member loses 9.8kg in three months of Limbo.

Hit your goal in time

Target date persona

Thereโ€™s nothing like a forthcoming event to motivate you.

Deadline _desktop

Deadline mobile


Time and cost

The price of Limbo is higher than other diet apps โ€“ why is that?

Most of the subscription price for Limbo goes towards the continuous glucose monitoring (CGM) sensors โ€“ they cost well over โ‚ฌ/ยฃ100 for 2. But these are essential to success, because, as of today, the CGM is the only technology that can properly track your body's energy system continuously and in detail.

What's the cost of the whole programme?

You can get started with Limbo for just 295, including your first month. Continuing after that is optional โ€“ use it as long as you need. If you're seeing results in the first month, extend the program until you hit your goal.

Even if you only do Limbo for one month, you'll learn a lot about your body.

How long do I need to go on Limbo?

It's up to you! You start with a month โ€“ and learn a lot about your body โ€“ then after that, you decide how long you want to use it for. You're in charge.

What's the normal length of time people use Limbo for?

A very common length of time is 3 to 4 months. In that timespan, you'll typically lose over 10kg, and 'reboot' your diet and lifestyle to something sustainable.

Is it all-inclusive?

Yes. The CGM sensors, app and coaching are all included in the Limbo fee.

What's expected of me

What's expected of me โ€“ do I have to change my life a lot?

In general, you don't have to change a lot, but you'll want to. As Limbo shows you how food works in your body, you'll start making new, choices almost automatically, and your new awareness is not something you can 'unlearn'.

But you don't have to change things: there's no prescribed diet, packaged meals, exercise routines, 'forbidden' foods and so on. Limbo is different to all the traditional weight loss systems you've tried. Data, not guesswork and rules.

Do I have to count calories?

No. You will note your meals and other activities โ€“ a few words, or a photo will suffice. It's minimal effort and there's no tedious logging of calories or ingredients.

Do I have to go to the gym?

No. The gym is optional. If you want to, then great. But it's not a mandatory part of Limbo, and some members lose a lot of weight without any strenuous exercise whatsoever.

Food and diet

What changes will I need to make in my diet?

Limbo does not have a set diet. It shows you your body's energy system โ€“ blood glucose โ€“ and pushes you to foods that work well for your body. That said, it will โ€“ in general โ€“ push you more towards proteins, fats, fibre, and away from sugars and carbohydrates.

What foods does Limbo recommend?

Limbo is agnostic about specific foods but it biases towards proteins and fats, rather than carbohydrates, because these have a lower glycaemic index โ€“ they spike blood glucose less than sugary foods.

Day-to-day life

Can I swim/shower/do normal things wearing Limbo?

Yes you can! The devices are waterproof, include patches to cover them, and can fit into virtually any lifestyle.

How often do I need to change my Limbo sensors?

Each sensor has a maximum life of about 2 weeks, after which you peel it off, throw it away, and apply a new one. We send you 2 of them each subscription period.

Can I play extreme sports?

Some of our members play contact sports. What we advise is extra protection โ€“ stickers and patches โ€“ to avoid knocking off the glucose sensors. Many professional sportspeople wear CGMs โ€“ it's doable.

What's a CGM?

What is a CGM?

A continuous glucose monitor is a small patch, that sticks to your arm for 14 days at a time, then you peel it off and stick a new one on. It's painless to apply and to wear (you'll often forget you're wearing it)

Does it go under the skin?

Each CGM comes with an applicator that sticks it on. There's a tiny filament โ€“ about the width of a cat's whisker โ€“ that sits just under the skin. Once it's applied, you won't feel yourself wearing it.

Does it hurt to put it on?

No, it doesn't. Most people are surprised that they barely felt a thing when they put their first one on. They describe it like a slap of the arm with two fingertips.

Ready to start your Limbo journey?

Sign up