Try a new protein treat every day for only £1.44

Congrats! Your amazing gym/PT has secured you 10% off our world-famous Original Protein Advent Calendar & Vegan version.

All you need to do is use your exclusive discount code at checkout & set the delivery address to local pickup from your gym.

  • 25 full-size treats
  • 10 well-known brands
  • Only £1.44 a day
  • 15g protein per day
  • 20 incredible flavours
  • Perfect early Xmas gift

The Advent Calendar

The Perfect Advent Calendar For Any Fitness Lover

How is it the THIRD year of our Protein Advent Calendar already?! It’s crazy to think that this time 2 years ago we were packing boxes in our front room. Since then, we’ve been stocked in Argos, hit BBC News, gone viral on Facebook & collaborated with frickin’ Gymshark!

If you’ve had one of our calendars before – you know what to expect. If you’re new to the party – you’re in for an early Christmas treat. We’ve also listened to customers & created the world’s first multi-brand Vegan Protein Advent Calendar.

Inside, you get 25 full-size protein-packed treats from the best brands around. Expect protein in every format imaginable, from bars & nut butters to balls & cake bites.

Whether it’s for yourself, or to wow the fitness lover in your life, our iconic Protein Advent Calendars make the ultimate fitness gift.

Merry Fitmas!

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Protein Packed

An average protein content of 15g per day (original) & 12g per day (vegan).

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Full-Sized Products

No samples! Each window contains a full-size treat from 10 premium protein brands.

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New & Exciting

We’ve found you the latest & greatest products to keep things exciting.

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Exclusive Discounts

Loved a certain product? No sweat. We’ve got exclusive discounts for you to stock up.

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Insane Variety

Packed with 20+ flavours in treats ranging from bars & nut butters to balls & cake bites.

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Amazing Value

Worth over £60 & yours for only £35.99 - £1.44 per day (usually £39.99).


Something to tickle everyone’s fancy.

No matter what your favourite flavour is or whether you follow a plant-based diet, our Protein Advent Calendars have you covered.

Choose from our Original Protein Advent Calendar (non-vegan) or our new Vegan Protein Advent Calendar.

25 full-size products from 10 brands in over 20 flavours. Winning.

Stay on Track

December is tough! Keep your gym game strong & stay on track throughout December.

Made For Fitness Lovers

The Advent Calendar fitness lovers really want. Gym-goers don’t want chocolate. They want protein.

The Original Fitness Advent

Don’t settle for less. We guarantee the best variety with 10 brands, 20 flavours & 8 types of treats.

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Protein Bars
Top quality bars from PhD, Battle Bites & Pandy.
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Protein Cake Slices

Incredible inventions from Applied Nutrition & Oatein in awesome flavours.

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Protein Cookies

High-protein cookies from Battle Snacks including our fave - chocolate chip.

Nut Butters@0,75x
Protein Nut Butters

Brand-new protein peanut butters in sweet maple + other flavours.

Protein Balls@0,75x
Protein Balls

Protein balls from Bounce, Boostball & The Protein Ball Co.

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Natural Bars/Flapjacks

Discover award-winning flavours from Pulsin, Lumberjack & Vive.

We only use products from the best brands. No compromises, ever.

Reasons to Choose Boostbox

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Our Customers Love It

We’ve had over 5,000 happy customers including Francesco who said, “This is the best advent calendar I've ever had”.

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We’ve Got The Experience

This is our third year of the Boostbox Protein Advent Calendar & we keep raising the bar higher & higher.

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Tracked Delivery

Your calendars are delivered to your gym via DPD to ensure the best service & no mistakes.

Normal Price: £39.99

Your Exclusive Price: £35.99

Normal Price: £39.99

Your Exclusive Price: £35.99

Frequently Asked Questions

We’ll deliver your calendar to your gym/training space, along with the calendars of anyone else who has ordered using your gym/PT’s unique discount code.

Once you get to the basket or checkout, you’ll see a place to enter your coupon code provided by your Gym/PT. Enter the code & you’ll get 10% off your calendar.

Whether you choose our Original Protein Advent Calendar (non-vegan) or our brand-new plant-powered Vegan Protein Advent Calendar, you’ll get 25 full-size protein treats from top quality brands in over 20 different flavours.

This year’s brands are: Battle Snacks, Applied Nutrition, Boostball, Lumberjack, Pandy Protein, Bounce, Oatein, Vive, Pulsin, PhD and The Protein Ball Co.

You get an incredible mix of the latest & greatest protein bars, balls, cookies, nut butters, cake slices & flapjacks.

Flavours include: salted caramel, carrot cake, lemon drizzle, birthday cake & many more.

Our Original Protein Advent Calendar is non-vegan so contains whey protein products. Our Vegan Protein Advent Calendar is vegan so contains no dairy & is great for those following a plant-based diet or those who are trying to cut down on dairy.

Both versions of our calendar come packed with 25 full-size products from some of the best brands in sports nutrition in a huge range of types of products (bars, balls, cookies, flapjacks) & in over 20 different flavours.

We were the world’s first multi-brand protein advent calendar after we were seen by over 5 million people on Facebook in 2017. Here are a few reasons why we like to think we’re the market-leader when it comes to fitness advent calendars:

Protein treats from a variety of 10 well-known brands

25 full-size treats – we never use samples

Works out at only £1.44 a day

15g average protein per day (12g for Vegan Calendar)

Massive variety of 20 incredible flavours

Makes the perfect early Christmas gift

Both of our calendars are £35.99 (usually £39.99) which works out to just £1.44 per day – that’s less than the products would cost you to buy in the shop.

The calendars will start shipping on Monday 11 November, so any orders made before then will go out from that date.

Orders typically take 2-3 days to arrive once we have shipped them, although at peak times around Black Friday, etc. these times may be slightly longer.