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Protein Bars

Looking for protein bars UK shoppers actually finish? GymStack stocks 270+ high-protein bars for training days, desk drawers and travel — from low-sugar macros to dessert-style flavours.

Browse classic chocolate, caramel, cookie and white chocolate options, plus multipacks when you want better value per bar. Compare protein per serving, carbs and calories so you can match a bar to cutting, maintenance or a quick post-workout top-up.

How to choose: pick higher protein and lower sugar if you want a lean snack; choose a more indulgent bar when adherence matters more than the tightest macros. Prefer a wider snack mix? See our protein bars & snacks hub, or pair bars with whey isolate for shakes on heavier training days.

Order from curated sports nutrition brands with fast UK delivery — free when you spend over £75.

17% off

USN
USN Trust Crunch Bars 12x60g Salted Caramel

Sale price £29.99 Regular price £35.99

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Quest Nutrition
Quest Nutrition Bar 12x60g Lemon Cake

Sale price £35.99 Regular price £43.99

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Applied Nutrition
Applied Nutrition Protein Crunch Bar 12x62g White Chocolate Caramel

Sale price £24.99 Regular price £29.99

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Quest Nutrition
Quest Nutrition Bar 12x60g Double Chocolate Chunk

Sale price £35.99 Regular price £43.99

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Kayow Nutrition
Kayow Nutrition Peanut Butter Cups 12x44g Milk Chocolate Cookies & Cream

Sale price £25.99 Regular price £31.99

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Optimum Nutrition
Optimum Nutrition Whipped Protein Bar 10x68g White Chocolate Salted Caramel & Peanut

Sale price £24.99 Regular price £29.99

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QNT
QNT Protein Wafer Bar 32% 12x35g Vanilla Yoghurt

Sale price £17.99 Regular price £21.99

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PhD Nutrition
PhD Nutrition Smart Bar 12x64g Choc Hazelnut

Sale price £27.99 Regular price £33.99
Unit price£36.45 /kg

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Kayow Nutrition
Kayow Nutrition Peanut Butter Cups 12x44g Milk Chocolate

Sale price £25.99 Regular price £31.99

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Quest Nutrition
Quest Nutrition Overload Protein Bar 12x60g Cookie Commotion

Sale price £35.99 Regular price £43.99

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Muscle Moose
Muscle Moose Big Protein Flapjack 12x100g Peanut Butter

Sale price £16.99 Regular price £20.99
Unit price£14.16 /kg

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YuBi Bar
YuBi Bar Protein Bar 12x35g Peanut

Sale price £16.99 Regular price £20.99

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Quest Nutrition
Quest Nutrition Bar 12x60g White Chocolate Raspberry

Sale price £35.99 Regular price £43.99

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USN
USN Trust Crunch Bars 12x60g Triple Chocolate

Sale price £29.99 Regular price £35.99
Unit price£41.65 /kg

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Quest Nutrition
Quest Nutrition Cookie 12x58g White Chocolate Macadamia

Sale price £32.99 Regular price £39.99

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Snickers
Snickers Hi Protein Low Sugar Bar 57g Original

Sale price £3.99 Regular price £4.99

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Muscle Moose
Muscle Moose Dinky Protein Bar 12x35g White Chocolate Cookie

Sale price £16.99 Regular price £20.99

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Grenade
Grenade Protein Bar 12x60g Dark Choc Mint

Sale price £31.99 Regular price £38.99
Unit price£44.43 /kg

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Mars
Snickers Low Sugar Protein Bar 12x57g Original

Sale price £33.99 Regular price £40.99

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YuBi Bar
YuBi Bar Protein Bar 12x35g Raspberry Ripple

Sale price £16.99 Regular price £20.99

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Barebells
Barebells Protein Bar 55g Salty Peanut

Sale price £2.99 Regular price £3.99

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PhD Nutrition
PhD Nutrition Smart Bar 12x64g Choc Brownie

Sale price £27.99 Regular price £33.99

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25% off

Barebells
Barebells Protein Bar 55g Hazelnut & Nougat

Sale price £2.99 Regular price £3.99
Unit price£54.36 /kg

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Applied Nutrition
Applied Nutrition Protein Crunch Bar 12x62g Milk Chocolate Peanut

Sale price £24.99 Regular price £29.99
Unit price£33.59 /kg

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PhD Nutrition
PhD Nutrition Smart Bar 12x64g Cookies & Cream

Sale price £27.99 Regular price £33.99

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Mountain Joes
Mountain Joes Protein Bar 12x55g Chocolate Eggsplosion

Sale price £25.99 Regular price £31.99
Unit price£39.38 /kg

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Barebells
Barebells Protein Bar 12x55g White Chocolate Salty Peanut

Sale price £30.99 Regular price £37.99
Unit price£46.95 /kg

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Lenny & Larrys
Lenny & Larrys The Complete Cookie-fied BIG Bar 12x90g Cookies & Cream

Sale price £39.99 Regular price £47.99
Unit price£37.03 /kg

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MaxiNutrition
MaxiNutrition Protein Waffle Bar 12x40g Hazelnut Spread

Sale price £21.99 Regular price £26.99
Unit price£45.81 /kg

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DY Nutrition
DY Nutrition Yates Protein Bar 12x60g Choc/Caramel

Sale price £29.99 Regular price £35.99
Unit price£41.65 /kg

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NICKS
NICKS Protein Bar 12x50g Hazelnut Chocolate

Sale price £24.99 Regular price £29.99

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Tribe
Tribe Protein Flapjack 12x50g Raspberry

Sale price £21.99 Regular price £26.99
Unit price£36.65 /kg

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Mountain Joes
Mountain Joes Protein Bar 12x55g Caramel Biscuit

Sale price £25.99 Regular price £31.99

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Trek
TREK Protein Flapjack 16x50g Original Oat

Sale price £21.99 Regular price £26.99

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Barebells
Barebells Protein Bar 55g Cookies and Cream

Sale price £2.99 Regular price £3.99

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Tribe
Tribe Protein + Focus Flapjack 12x60g Choc Brownie

Sale price £26.99 Regular price £32.99

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Mountain Joes
Mountain Joes Protein Bar 12x35g White Chocolate Hazelnut

Sale price £16.99 Regular price £20.99

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The Skinny Food Co
The Skinny Food Co Duo Low Sugar High Protein Bar 12 x 60g Jaffa Cake

Sale price £24.99 Regular price £29.99

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Barebells
Barebells Soft Protein Bar 55g Marshmallow Rocky Road

Sale price £2.99 Regular price £3.99

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Barebells
Barebells Soft Protein Bar 55g Banana Dream

Sale price £2.99 Regular price £3.99

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Barebells
Barebells Protein Bar 55g Caramel Cashew

Sale price £2.99 Regular price £3.99

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Warrior
Warrior Raw Protein Flapjack 12x75g Honey Berry

Sale price £16.99 Regular price £20.99

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Weider
Joe Weider Victory Endurance Recovery Bar - Chocolate - 12 x 35g

Sale price £16.99 Regular price £20.99
Unit price£40.45 /kg

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Weider
32% High Protein Bar - Chocolate - 12 x 60g

Sale price £29.99 Regular price £35.99
Unit price£41.65 /kg

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Weider
32% High Protein Bar - Banana - 12 x 60g

Sale price £29.99 Regular price £35.99
Unit price£41.65 /kg

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Reflex Nutrition
High Protein Twin Bar - Chocolate Toffee Crispy - 12 x 60g

Sale price £45.99 Regular price £55.99
Unit price£63.88 /kg

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Nutrend
Excelent 25% Protein Bar Double - Almond-Pistachio with Pistachios - 18 x 85g

Sale price £33.99 Regular price £40.99
Unit price£22.22 /kg

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Nutrend
Excelent 24% Protein Bar Double - Chocolate & Nougat with Cranberries - 18 x 85g

Sale price £33.99 Regular price £40.99
Unit price£22.22 /kg

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18% off

Allnutrition
Fitking Protein Snack Bar - Chocolate Peanut - 24 x 40g

Sale price £36.99 Regular price £44.99
Unit price£38.53 /kg

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18% off

Allnutrition
Fitking Delicious Snack Bar - Coconut - 24 x 40g

Sale price £26.99 Regular price £32.99
Unit price£28.11 /kg

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