Protein Supplements

Compare Protein Supplement prices at Fitness Savvy. We list thousands of fitness products and protein shakes so you can be sure to find the best deals around.

Find discount codes from top brands such as Myprotein, filter by protein form, and discover what the difference is between hydrolysate, concentrate and isolate using our whey protein buying guide.

Watch independent taste tests and find the best deals by comparing prices from hundreds of retailers. You’ll find all types of products including protein bars, and much more. In addition, you can find out what each filter means by hovering over the question mark. These little mini-descriptions also have links to relevant guides and articles to further help you with your purchase.

Our site is not just about finding the cheapest protein powder – it’s about finding the perfect balance between quality and price.

Not only can you compare prices of protein supplements and products, but compare items side by side (just click the scales in the top left corner of each item to add it to your compare list). You’ll find nutritional content per serving, macro ratios, servings per container – and much much more to help you find the exact product to meet your needs.

Using Fitness Savvy will help you find the cheapest protein in the UK.

Optimum Nutrition Serious Mass Weight Gain Powder

Showing 1–18 of 451 results

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Optimum Nutrition Serious Mass Weight Gain Powder
Rated 4.22 out of 5 based on 5135 customer ratings
(5141 customer reviews)

Optimum Nutrition Serious Mass Weight Gain Powder

Rated 4.22 out of 5
From £24.98
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PhD Diet Whey Protein Powder
Rated 4.23300970874 out of 5 based on 3604 customer ratings
(3605 customer reviews)

PhD Diet Whey Protein Powder

Rated 4.23300970874 out of 5
From £13.49
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Optimum Nutrition Gold Standard 100% Whey – 2.27kg
Rated 4.66 out of 5 based on 3130 customer ratings
(3133 customer reviews)

Optimum Nutrition Gold Standard 100% Whey – 2.27kg

Rated 4.66 out of 5
From £38.99
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PhD Diet Whey – 2kg – Vanilla Creme
Rated 4.70 out of 5 based on 1700 customer ratings
(1703 customer reviews)

PhD Diet Whey – 2kg – Vanilla Creme

Rated 4.70 out of 5
From £29.95
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Grenade Carb Killa – 12 x 60g Bars
Rated 3.93382899628 out of 5 based on 1345 customer ratings
(1345 customer reviews)

Grenade Carb Killa – 12 x 60g Bars

Rated 3.93382899628 out of 5
From £17.25
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Diet Whey Matrix Protein Powder – 5kg (111 Servings)
Rated 4.52 out of 5 based on 961 customer ratings
(961 customer reviews)

Diet Whey Matrix Protein Powder – 5kg (111 Servings)

Rated 4.52 out of 5
From £19.99
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Quest Bars
Rated 5.00 out of 5 based on 909 customer ratings
(911 customer reviews)

Quest Bars

Rated 5.00 out of 5
From £21.24
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PhD Synergy ISO-7 – 2kg
Rated 4.12177121771 out of 5 based on 541 customer ratings
(542 customer reviews)

PhD Synergy ISO-7 – 2kg

Rated 4.12177121771 out of 5
From £29.95
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Bulk Powders INFORMED WHEY – 2.27kg
Rated 4.90314769976 out of 5 based on 413 customer ratings
(413 customer reviews)

Bulk Powders INFORMED WHEY – 2.27kg

Rated 4.90314769976 out of 5
From £41.74
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Reflex One Stop Xtreme – 2.03/4.35kg
Rated 4.58270676692 out of 5 based on 266 customer ratings
(266 customer reviews)

Reflex One Stop Xtreme – 2.03/4.35kg

Rated 4.58270676692 out of 5
From £25.95
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The Protein Works Whey Protein 360 – 1.2kg
Rated 4.73983739837 out of 5 based on 246 customer ratings
(246 customer reviews)

The Protein Works Whey Protein 360 – 1.2kg

Rated 4.73983739837 out of 5
From £23.49
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Bulk Powders INFORMED MASS – 3kg
Rated 4.56707317073 out of 5 based on 164 customer ratings
(164 customer reviews)

Bulk Powders INFORMED MASS – 3kg

Rated 4.56707317073 out of 5
From £39.99
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The Bulk Protein Company Serious Protein – 4kg
Rated 3.69047619048 out of 5 based on 126 customer ratings
(126 customer reviews)

The Bulk Protein Company Serious Protein – 4kg

Rated 3.69047619048 out of 5
From £29.00
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Optimum Nutrition Gold Standard Whey – 908g
Rated 5.00 out of 5 based on 1 customer rating
(2 customer reviews)

Optimum Nutrition Gold Standard Whey – 908g

Rated 5.00 out of 5
From £19.99
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Bulk Powders Micellar Casein – 4kg
Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

Bulk Powders Micellar Casein – 4kg

Rated 5.00 out of 5
From £29.00
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CNP Pro Peptide – 2.27kg
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Grenade Hydra 6 – 1.8kg
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The Protein Works Whey Protein 360 I-shake – 30g