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Lose Weight

Weight management supplements can support a calorie-controlled diet and active lifestyle. GymStack stocks thermogenic formulas, low-calorie protein, CLA and complementary products from established sports nutrition brands.

Always combine supplements with balanced nutrition and regular activity for best results.

Explore related hubs: fat burners, protein bars, whey isolate, meal replacements. See all brands on our brands A–Z page.

Free UK delivery on orders over £75.

17% off

Applied Nutrition
Applied Nutrition Shed H2O Diuretic 180 Caps

Sale price £33.99 Regular price £40.99

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18% off

Applied Nutrition
Applied Nutrition CLA Gold 1000 100 Veg Caps

Sale price £17.99 Regular price £21.99
Unit price£0.18 each

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19% off

Reflex Nutrition
Reflex Nutrition Complete Diet Protein 600g Vanilla Fudge

Sale price £16.99 Regular price £20.99
Unit price£28.32 /kg

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17% off

OstroVit
3C CLA Carnitine Chromium - Kiwi - 150g

Sale price £18.99 Regular price £22.99
Unit price£126.60 /kg

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17% off

Olimp Nutrition
Thermo Speed Hardcore - 120 mega caps

Sale price £38.99 Regular price £46.99
Unit price£0.32 each

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18% off

Nutrend
Carnitine 100 000 - Lemon - 1000 ml.

Sale price £26.99 Regular price £32.99
Unit price£26.99 /L

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17% off

Kaged Muscle
Clean Burn Powder - Strawberry Lemonade - 186g

Sale price £48.99 Regular price £58.99
Unit price£263.39 /kg

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18% off

Dorian Yates
L-Carnitine Liquid Shot - Peach - 20 x 25ml.

Sale price £31.99 Regular price £38.99
Unit price£63.98 /L

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18% off

Applied Nutrition
Diet Protein Bar - Chocolate Salted Caramel - 12 x 45g

Sale price £22.99 Regular price £27.99
Unit price£42.57 /kg

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21% off

Allnutrition
Water Out - 120 caps

Sale price £10.99 Regular price £13.99
Unit price£0.09 each

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19% off

Allnutrition
L-Carni - Cherry - 1000 ml.

Sale price £25.99 Regular price £31.99
Unit price£25.99 /L

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18% off

Allnutrition
Burn4ALL Extreme - 120 caps

Sale price £8.99 Regular price £10.99
Unit price£0.07 each

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18% off

Bulk
Bulk Complete Thermogenic V2 90 Tabs

Sale price £8.99 Regular price £10.99

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19% off

Applied Nutrition
Applied Nutrition L-Carnitine 3000 480ml Sour Apple

Sale price £20.99 Regular price £25.99
Unit price£43.73 /L

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19% off

Olimp Nutrition
CLA with Green Tea plus L-Carnitine - 60 caps

Sale price £20.99 Regular price £25.99
Unit price£0.35 each

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17% off

Applied Nutrition
L-Carnitine Liquid 3000 - Sour Apple - 480 ml.

Sale price £23.99 Regular price £28.99
Unit price£49.98 /L

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25% off

Applied Nutrition
Acetyl L-Carnitine - 150g

Sale price £22.49 Regular price £29.99
Unit price£149.93 /kg

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17% off

Life Extension
Acetyl-L-Carnitine Arginate - 90 vcaps

Sale price £38.99 Regular price £46.99
Unit price£0.43 each

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17% off

Doctors Best
L-Carnitine Fumarate with Biosint Carnitines - 60 vcaps

Sale price £34.99 Regular price £41.99
Unit price£0.58 each

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5% Nutrition
Stage Ready Diuretic - 60 caps

Regular price £19.99
Unit price£0.33 each

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19% off

Applied Nutrition
Applied Nutrition L-Carnitine 3000 480ml Fruit Burst

Sale price £20.99 Regular price £25.99

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17% off

Stacker2 Europe
Carnitine + CLA - Fruit Punch - 120g

Sale price £24.99 Regular price £29.99
Unit price£208.25 /kg

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17% off

Olimp Nutrition
L-Carnitine 1500 Extreme - 120 caps

Sale price £44.99 Regular price £53.99
Unit price£0.37 each

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18% off

NOW Foods
Phase 2 - White Kidney Bean Extract - 500mg - 120 vcaps

Sale price £26.99 Regular price £32.99
Unit price£0.22 each

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19% off

NOW Foods
L-Carnitine - 250mg - 60 vcaps

Sale price £12.99 Regular price £15.99
Unit price£0.22 each

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18% off

NOW Foods
Acetyl-L-Carnitine - Pure Powder - 85g

Sale price £26.99 Regular price £32.99
Unit price£317.53 /kg

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17% off

Dorian Yates
Liquid L-Carnitine XL - Sour Cherry - 1000 ml.

Sale price £23.99 Regular price £28.99
Unit price£23.99 /L

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18% off

Dorian Yates
Liquid L-Carnitine XL - Pineapple - 1000 ml.

Sale price £27.99 Regular price £33.99
Unit price£27.99 /L

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17% off

Dorian Yates
Liquid L-Carnitine XL - Mango - 1000 ml.

Sale price £23.99 Regular price £28.99
Unit price£23.99 /L

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17% off

Mutant
Mutant Core LCarnitine 90 Caps

Sale price £14.99 Regular price £17.99

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18% off

Applied Nutrition
Applied Nutrition Acetyl L-Carnitine 300g Unflavoured

Sale price £17.99 Regular price £21.99
Unit price£59.97 /kg

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18% off

TWP
TWP Diced V2- Stim Fat Burner 60 Caps

Sale price £26.99 Regular price £32.99

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17% off

Muscle Rage
Muscle Rage Slin-Rx 240 Caps

Sale price £39.99 Regular price £47.99

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20% off

Bulk
Bulk CLA 1000mg 270 Softgels

Sale price £15.99 Regular price £19.99

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18% off

Applied Nutrition
Applied Nutrition CLA + L-Carnitine & Green Tea 100 Veg Caps

Sale price £27.99 Regular price £33.99

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17% off

Applied Nutrition
Applied Nutrition ABE (All Black Everything) Shred X 90 Veg Caps

Sale price £33.99 Regular price £40.99

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18% off

EHP Labs
EHP Labs Acetyl L-Carnitine 100g

Sale price £22.99 Regular price £27.99
Unit price£229.90 /kg

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17% off

Applied Nutrition
Applied Nutrition Shred-X Powder 300g Lemon Ice Tea

Sale price £33.99 Regular price £40.99
Unit price£113.30 /kg

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17% off

Applied Nutrition
Applied Nutrition Shred-X Powder 300g Strawberry Kiwi

Sale price £33.99 Regular price £40.99
Unit price£113.30 /kg

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18% off

DY Nutrition
DY Nutrition Slender 450g Strawberry

Sale price £30.99 Regular price £37.99
Unit price£68.87 /kg

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21% off

Allnutrition
Coleus Forskohlii - 90 caps

Sale price £10.99 Regular price £13.99
Unit price£0.12 each

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17% off

Allnutrition
Muesli Bar + L-Carnitine - Yoghurt & Acerola - 32 bars

Sale price £18.99 Regular price £22.99
Unit price£0.59 each

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19% off

Allnutrition
Muesli Bar + L-Carnitine - Yoghurt & Blackcurrant - 32 bars

Sale price £21.99 Regular price £26.99
Unit price£0.69 each

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17% off

Animal
Animal Cuts - Packs - 42 packs

Sale price £79.99 Regular price £95.99
Unit price£1.90 each

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30% off

Applied Nutrition
CLA + L-Carnitine & Green Tea - 100 caps

Sale price £27.99 Regular price £39.99
Unit price£0.28 each

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30% off

Applied Nutrition
L-Carnitine - 1500mg - 120 caps

Sale price £18.89 Regular price £26.99
Unit price£0.16 each

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17% off

Applied Nutrition
Shred-X - 90 caps

Sale price £39.99 Regular price £47.99
Unit price£0.44 each

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18% off

Applied Nutrition
Shred-X Powder - Lemon Ice Tea - 300g

Sale price £46.99 Regular price £56.99
Unit price£156.63 /kg

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18% off

Applied Nutrition
Shred-X Powder - Sour Gummy Bear - 300g

Sale price £46.99 Regular price £56.99
Unit price£156.63 /kg

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18% off

Applied Nutrition
Shred-X Powder - Strawberry Kiwi - 300g

Sale price £40.99 Regular price £49.99
Unit price£136.63 /kg

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