Sustain Gum - 50mg of Caffeine per Gum

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Size: 6 Packets - 72 Pieces of Gum

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Performance Enhancing, Sustainable, Plastic Free Caffeine Chewing Gum

Sustain Gum—the first ever 100% Biodegradable, Plastic Free Caffeine Chewing Gum.

With 50 mg of caffeine per piece, Sustain Gum is plant-based, and decomposes like fruit, allowing you to sustain both yourself and the Earth.

Product Overview

Sustain Gum was designed with your performance in mind, but the price of success shouldn’t be the Earth. That's why we use a natural gum base made from plants, making our caffeine gum both biodegradable and environmentally friendly.

Because you chew Sustain Chewing Gum, the caffeine is absorbed through membranes in the mouth directly into your bloodstream, bypassing your stomach, so you only need to chew for 5-10 minutes (dispose of the gum after 10 mins!) to get the caffeine kick you need to maximise your performance. When you’re tiring in a race or struggling at the gym that could be the difference between winning and losing or setting a new Personal Best.

Key Benefits

Sustain Gum has benefited many, from ultrarunners and elite level athletes to gym enthusiasts and shift workers. We're thrilled about the impact we're making on people's lives (and without harming the planet!).

  • 100% Biodegradable Gum
  • 100% Compostable Packaging
  • 50mg Caffeine Per Chew
  • Plastic Free & Natural Gum Base
  • Kicks 3x Faster than Other Caffeine Sources
  • Boosts Energy Levels & Improves Focus
  • Reduce Tiredness & Fight Fatigue 
  • Scientifically Increases Endurance by Up to 6%
  • Steven Bartlett & Peter Jones Backed
  • Designed for Athletes By Athletes
  • Natural Flavours & No Artificial Sweeteners
  • Sugar Free & Deliciously Minty
Why Choose Sustain Energy Gum?

Most gums contain plastics hidden in their ingredients under the term ‘gum base’, meaning it would take centuries to degrade. We use a natural gum base, crafted using only plant-based ingredients, and is 100% compostable, just like a piece of fruit! So you can bury Sustain Gum like your opposition, sustaining both you and the Earth. Our packaging is also 100% biodegradable, meaning you can smash your Personal Bests with a healthy conscience.

Many caffeine products give you the jitters packed with unhealthy nasties and most other gums are made from plastic. Our biodegradable caffeine gum is Sugar Free - No filler, No Bull. We use xylitol a plant-based sweetener and natural flavourings of peppermint and menthol for a tasty, refreshingly chew.

At less than 5 calories per piece, it fuels you with clean energy that feels natural and lasts longer for better performance.

How to Use

Our plastic free energy gum are a refreshing delicious . Simply pop one in your mouth and chew for around 5 to 10 minutes to unleash a clean burst of energy that will fuel your stride.

Who is Sustain Gum suitable for? Whether you're conquering marathons, crushing your daily runs, hitting the gym for an intense workout, or gearing up for a big match, our energy chews are your ultimate companion for staying at your peak performance for hours on end.


Xylitol, Natural Gum Base, Natural Peppermint Flavour, Natural Menthol Flavour, Caffeine, Glycerol, Arabic Gum, Sucralose, Acesulfame K, Carnauba Wax.

Nutritional Information
Nutritional Information Per 2.35g Gum (7g) Per 100g
Energy 17.8kJ / 4.3 kcal 758kJ / 182 kcal
Fat 0g 0g
- of which saturates 0g 0g
Carbohydrate 1.8g 76.8g
- of which sugars 0g 0g
Fibre 0g 0.7g
Protein 0g 0g
Salt 0g 0g


Sustain Gum is 100% compostable, so you can bury our product like your opposition. Our sugar free caffeine gum increase stamina, improves alertness and mobilises your fat cells to be used as fuel so that you can train and compete harder for longer no matter what the activity or sport.

Kicks 3x Times Faster

50mg of refreshing concentrated caffeine dose that kicks in as little as 5 minutes.

100% biodegradable

We use a natural gum base made exclusively from plant-based ingredients. It's 100% compostable, just like a banana skin!

Plastic Free

Natural gum base made from plants, making our energy gum both biodegradable and environmentally friendly.

Sugar Free

No Sugar, No artificial flavours, No artificial sweeteners, No artificial colours, No artificial preservatives, No Bull - just Clean Energy

Multiple Uses

From marathons to gym sessions and everything in between, our energy chews keep you at your peak for hours.

On The Go Energy

Individually wrapped for convenience, a boost of energy for peak performance wherever life takes you.

Increases Stamina

Scientifically proven to increase endurance by up to 6%, allowing you to train harder, longer and faster before becoming fatigued.

Designed For Athletes

Used by world champions and helped set 450,000 personal bests to date

There’s A Personal Best In Every Pack!
Faster Kick Than Caffeine Gels & Energy Drinks
There’s A Personal Best In Every Pack!
Faster Kick Than Caffeine Gels & Energy Drinks
There’s A Personal Best In Every Pack!
Faster Kick Than Caffeine Gels & Energy Drinks
There’s A Personal Best In Every Pack!
Faster Kick Than Caffeine Gels & Energy Drinks


Find answers to some of the most common questions.

Which countries do you ship to?

Currently, you can order from our website if you’re located in the UK, US or Canada. But stay tuned, as we're eagerly exploring opportunities to broaden our offering to different countries from our website.

How much are shipping costs?

Shipping costs? Zilch, Zero, Nothing! We're all about that extraordinary customer experience, so we've opted for Amazon Fulfilment to bring you the same impeccable service, and yes, you guessed it, absolutely FREE of charge.

How does Sustain Gum kick three times faster?

Chewable caffeine kicks into action up to 3x quicker than energy drinks, gel, or pills (Kamimori et al., 2002). Sustain Gum is chewed so utilises buccal absorption, meaning the caffeine dives straight into the bloodstream through the mouth, leaving sluggishness in the dust.

Sustain Gum vs Caffeine Bullets, What's the Difference?

Sustain Gum is the first ever 100% Biodegradable, Plastic Free Caffeine Chewing Gum. It contains 50mg of Caffeine and is NOT edible.

Let's clear up one of the most common misconceptions – our Caffeine Bullet Chews are not gum. They're far more! They're the pinnacle of performance enhancement with 100mg of Caffeine per chew and are delicious to add! Think of them like tasty edible gummies, similar to your favourite chewy Mint

How much caffeine should I use?

For a performance boost, a dosage of 1-2 mg of caffeine per kilogram of body weight is a good starting point. If you're aiming for peak performance, you might want to consider 3-6 mg of caffeine per kilogram.

For Improved Performance (1-2 mg per kg of Body weight):

  1. Female = 50 - 100 mg of Caffeine 
  2. Male = 65 - 130 mg of Caffeine 

For Optimal Performance (3-6 mg per kg of Body weight):

  1. Female =  150 - 300 mg of Caffeine 
  2. Male = 195 - 390 mg of Caffeine

*Please note that these calculations are based on the average height and consequent “healthy” BMI weight. Always consider individual tolerance to caffeine and consult with a healthcare professional if you have any concerns about caffeine consumption.

How long should I chew Sustain Gum for?

Each piece of Sustain Gum contains 50mg of caffeine, which is absorbed through the buccal absorption when chewed. This method bypasses the digestive system, allowing the active ingredients to enter your bloodstream 3x faster than caffeine pills, drinks, or gels. Typically, you’ll start feeling the effects within 5 minutes. For optimal results, chew for 5 - 10 minutes, and dispose of the chewing gum after 10 minutes.