10 Best Protein Supplements in The UK

Last updated on 12/08/2025

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Optimum Nutrition Gold Standard Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and Amino Acids, Chocolate Hazelnut, 71 Servings, 2.27kg, Packaging May Vary

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Why We Love It

Supports fitness journey from start.
Assists muscle gain, aids recovery.
Offers variety in sizes, flavors.

Main Highlights

Optimum Nutrition’s Gold Standard 100% WHEY is the world’s best-selling protein powder* designed to support your fitness journey from day one
FAST-ABSORBING whey protein with whey protein isolate as the main ingredient helps with muscle gain and supports recovery* after every training session
The ON whey protein formula is Informed Choice certified, contains naturally-occurring BCAAs and GLUTAMINE and is LOW IN SUGAR and fat
Available in a VARIETY OF SIZES and FLAVOURS: double rich chocolate, banana cream, vanilla ice cream, unflavored protein powder and more
EASY & CONVENIENT: mix one scoop in 180-240 ml of cold water; best enjoyed in the morning or/and during the 30 minutes just before or immediately after training
*Source: Euromonitor International Limited; Consumer Health 2023 edition, Sports Protein Powder category, % retail value shares, 2022 data
** Source EFSA Journal 2010;8(10):1811; 2011;9(6):2203

The Bulk Protein Company

SERIOUS PROTEIN – Protein Powder – 4kg – Low Carb – Supports Lean Muscle Growth – Recovery Supplement - The Bulk Protein Company - 133 Servings (Chocolate)

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Why We Love It

Aids in muscle growth.
Low calorie protein source.
Great taste, excellent value.

Main Highlights

✅ 24g PROTEIN PER SERVING TO BUILD LEAN MUSCLE - A convenient way to help meet your daily protein needs. Use after training to quickly heal micro-tears in muscle tissues, speed up recovery and reduce muscle soreness for STRONGER and BIGGER muscles over time.
✅ HIGH PROTEIN, LOW CALORIES, LOW CARBS - Only 114 Calories Per Serving! Serious Protein powder is 80% Protein with Low Carbs, Sugars, and Fats. Ideal for adding LEAN MASS! Perfect to use as a meal replacement or part of a calorie-controlled diet, while trying to lean out, or for those simply looking to support MUSCLE GAINS.
✅ HIGH QUALITY INGREDIENTS - Premium blend of Whey Protein Concentrate, Micellar Casein and Soy Protein Isolate, a combination of slow and fast releasing proteins for total protein synthesis throughout the day. Also contains GLUTAMINE PEPTIDE, essential for muscle recovery and more bioavailable than regular glutamine, helping aid MUSCLE GROWTH.
✅ PROTEIN SHAKE THAT TASTES GREAT - Add 1 rounded scoop (30g) to 250ml of cold water or skimmed milk and shake well to create a great tasting Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. For best results consume 1 serving (30g) one to three times per day
✅ EXCELLENT VALUE - More than 6 weeks supply in one tub, when following our recommended servings. Comes with scoop for measurements.

Applied Nutrition Critical Whey Protein Powder 2kg - High Protein Powder, Protein Milkshake, Muscle Building Supplement with BCAAs & Glutamine (2kg - 67 Servings) (White Choco Bueno)

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Why We Love It

Promotes muscle building and maintenance.
Quick and easy preparation.
Assures highest quality for athletes.

Main Highlights

BUILD & MAINTAIN MUSCLE: Applied Nutrition protein powder is an excellent way to build up your muscles when you do strength training. Protein is an essential part of your diet to help maintain muscle mass, so drinking the shake as recommended will help you to retain your muscle development.
EASY TO PREPARE: This high protein powder mixes incredibly well with water or low-fat milk. You can shake it up when you are running late or on the go in no time.
TESTED FOR ATHLETES: Every ingredient within this product is carefully selected and monitored through our quality management system to bring you the highest level of assurance. Final products are produced and packaged in an ISO 22000, BRC, GMP and Halal accredited laboratory.
VARIETY OF FANTASTIC FLAVOURS: You can pick from multiple available flavours for your protein milkshake. Never again will you have to drink tasteless protein supplements.
GREAT SOURCE OF PROTEIN: Applied Nutrition Critical Whey powder is a wonderful source of protein. The combination of Whey Protein Concentrate, Whey Protein Isolate and Hydrolysed Whey Protein makes the perfect muscle building supplement.

The Bulk Protein Company

The Bulk Protein Company - Serious Gainz – Mass Gainer Protein Powder – Banana 5kg, B142-BA

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Why We Love It

Optimal for muscle recovery and growth.
Promotes mass gain efficiently.
Amazing taste with variety.

Main Highlights

30g PROTEIN PER SERVING TO HELP BUILD MUSCLE - Protein Isolate powder that contains 30 grams of high quality Protein per serving. A convenient and easy way to help you meet your daily protein needs. Use after training to quickly heal micro-tears in muscle tissues, which speeds up recovery, reduces muscle soreness and leads to stronger and bigger muscles over time
PUT ON SIZE AND GAIN MASS - With 468 lean calories per serving, Serious Gainz protein powder is ideal when BULKING. Use as part of a balanced diet to help add body mass and increase weight gain. Contains 81g of carbohydrates which will help your body absorb the protein within, turning it into muscle mass to help towards improving your overall body composition
PROTEIN SHAKE THAT TASTES GREAT - Add 3 scoops of powder to 400-500ml of water or milk and mix well to create a great tasting Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. Protein powders don't have to be boring, so we made 10 different flavours for you to choose from
HIGH QUALITY WHEY PROTEIN - Whey digests quickly and is rich in branched-chain amino acids (BCAAs). One of these BCAAs, Leucine, plays a major role in promoting muscle growth and recovery after resistance and endurance exercise. When amino acids are digested and absorbed into your bloodstream, they become available for muscle protein synthesis, which is the creation of new muscle
EXCELLENT VALUE 5kg TUB WITH 40 SERVINGS - With up to a month's supply of high quality protein powder, we offer great value for your money compared with other brands. We recommend one serving per day to consistently meet your daily protein goal. Consume immediately post-training on workout days and between breakfast and lunch on non-workout days. Comes with scooper for measurements

Optimum Nutrition ON Gold Standard 100% Isolate Pure Whey Protein, Naturally Occurring BCAAs and Glutamine, Pre and Post Workout, Vanilla Flavour, 31 Servings, 930 g

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Why We Love It

High in quality whey protein.
Support muscle growth and maintenance.
Low in sugar and fat.

Main Highlights

Gold Standard whey protein powder contains 25g (83 percent) of high quality 100 percent pure whey isolate protein blend per serving to suport lean muscle gain*
Whey protein isolate is ultra-filtered for exceptional purity; it supports the growth and maintenance of muscle mass and the maintenance of normal bones*
Informed Choice certified ON whey protein powder contains low sugar (0.3 g), low fat (0.4 g) and 5.5 g of naturally occurring essential amino acids, BCAAs, per serving
This high protein powder is perfect as a protein shake, pre workout and post workout for both men and women; comes in vanilla, chocolate and strawberry flavours
To create perfect protein drinks, add 30 g (1 rounded scoop) to 200 ml of cold water and mix well

Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 g

23% OffFree Shipping

Why We Love It

Supports effective muscle gain.
Boosts recovery after workouts.
Low in sugar, varied flavors.

Main Highlights

FAST-ABSORBING whey protein with whey protein isolate as the main ingredient helps with muscle gain and supports recovery* after every training session
The ON whey protein formula is Informed Choice certified, contains naturally-occurring BCAAs and GLUTAMINE and is LOW IN SUGAR and fat
EASY & CONVENIENT: mix one scoop in 180-240 ml of cold water; best enjoyed in the morning or/and during the 30 minutes just before or immediately after training
*Source: Euromonitor International Limited; Consumer Health 2023 edition, Sports Protein Powder category, % retail value shares, 2022 data
** Source EFSA Journal 2010;8(10):1811; 2011;9(6):2203

Bulk Pure Whey Protein Powder Shake, Vanilla, 1 kg, Packaging May Vary

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Why We Love It

Award-winning for everyday training.
Packed with essential proteins.
Delicious low-sugar flavours.

Main Highlights

A first-class, award-winning protein shake for everyday training
Packed with at least 22 g protein and 5 g naturally occurring BCAA (branched chain amino acids) in each serving
Whey protein sourced from the milk of European, grass-fed cows
Low in sugar and low in fat, a winning protein shake for everyday training
Available in a range of delicious flavours, this is your perfect training partner

MyProtein Impact Whey Protein Powder – Vanilla Flavour– 1kg, 22g of Protein per Serving, Supports Muscle Building, Recovery & Lean Muscle Maintenance - 33 Servings

4% OffFree Shipping

Why We Love It

Great protein to calorie ratio.
Quality assured by Labdoor.
Incredible flavor variety.

Main Highlights

High-Quality Protein Source: Delivers 23g of premium protein per serving, helping to fuel your muscles and support your fitness goals with each shake.
Low-Calorie & Nutrient-Rich: Only 114 calories per serving, with just 1.9g of fat and 1.8g of carbs, making it a perfect choice for those who want to boost their protein intake without excess calories.
Rich in Essential Amino Acids: Includes essential amino acids and BCAAs, crucial for muscle recovery and growth, providing the nutrients your body needs to repair and build muscle.
Wide Variety of Flavours: Over 40 delicious flavours to choose from, including popular favourites like Chocolate Brownie, Cookies & Cream, and Peach Tea, ensuring you never get bored of your protein shake.
Informed Choice Certified: Backed by Informed Choice certification, giving you confidence that this product is regularly tested and free from banned substances, meeting global sports nutrition quality standards.

USN Muscle Fuel Anabolic All-In-One Muscle Mass Gainer, Banana Flavour - 2kg, 54g Protein Powder, 5g Creatine Powder & 5g BCAA Powder For Maximum Muscle Growth, Post Workout Recovery Drink Mix

20% OffFree Shipping

Why We Love It

Comprehensive all-in-one protein shake.
Promotes physical performance and growth.
Industry-leading sports nutrition brand.

Main Highlights

USN Muscle Fuel Anabolic protein drink mix: High protein shake powder with Vitamins, Minerals, Carbohydrates, BCAAs, Amino Acids and Creatine. Premium dietary supplement designed to support muscle building
Premium women's and men's supplements: USN diet supplements offer proven benefits, when taken alongside a balanced diet and healthy lifestyle. Always consult a healthcare professional first
Mass gainer protein powder: Banana flavoured drink powder with 54g of premium quality protein, 77g of carbohydrates and 850mg of HMB to support muscle recovery, growth and performance
Reach your goals: All in one muscle gain building stack, combined with raw creatines and carbohydrates, so creatine is easily absorbed and transported around the body. Easy to mix with water
Ultimate Sports Nutrition: USN are at the forefront of sports nutrition research, making effective sports nutrition supplements for professional and non-professional athletes, pre or post workout

Incredible taste and ultimate texture.
Superior nutritional profile offered.
Promotes optimum wellbeing daily.

Main Highlights

𝗡𝗘𝗪 & 𝗜𝗠𝗣𝗥𝗢𝗩𝗘𝗗 𝗙𝗢𝗥𝗠𝗨𝗟𝗔𝗧𝗜𝗢𝗡 – Packed with cutting-edge ingredients & nutritionist approved, our tried & tested blend, now elevated with 50% fewer carbohydrates per serving, a patented pea-protein source for improved bioavailability, a dual magnesium source for greater efficacy, and Himalayan Pink salt for the rich electrolyte benefits. Contains only 2mg of caffeine per serving alongside the Ginseng & Guarana. Gluten-free, Sucralose-Free & Third Party Tested for Heavy Metals!
𝗜𝗡𝗖𝗥𝗘𝗗𝗜𝗕𝗟𝗘 𝗧𝗔𝗦𝗧𝗘 & 𝗧𝗘𝗫𝗧𝗨𝗥𝗘 – Only the highest quality of ingredients to ensure an incredible taste profile and ultimate smooth texture. Mix with water or nut milk for a creamy & lean plant based protein shake. No chalky or gritty texture.
𝗦𝗨𝗣𝗘𝗥𝗜𝗢𝗥 𝗡𝗨𝗧𝗥𝗜𝗧𝗜𝗢𝗡𝗔𝗟 𝗣𝗥𝗢𝗙𝗜𝗟𝗘 – 20g of protein per 30g serving and all flavours are gluten free, soya free, added sugar free, dairy free, and non-GMO. Our Pea Protein has been infused with White Hemp Protein for an effective amino acid profile for the highest quality of plant-based protein possible.
𝗡𝗨𝗧𝗥𝗜𝗧𝗜𝗢𝗡𝗜𝗦𝗧 𝗙𝗢𝗥𝗠𝗨𝗟𝗔𝗧𝗘𝗗 𝗙𝗢𝗥 𝗪𝗢𝗠𝗘𝗡 – Blended with Peruvian Maca, the entire B Vitamin Complex for hair, skin, and nails; high levels of Iron, Magnesium, Calcium, and L-Carnitine for energy and bone density, and Flaxseed for Omega-3.
𝗢𝗣𝗧𝗜𝗠𝗨𝗠 𝗪𝗘𝗟𝗟𝗕𝗘𝗜𝗡𝗚 – 20g of plant protein per serving with an incredible macronutrient profile. Suitable for daily optimal wellbeing, even if not exercising – makes for a delicious breakfast or snack and curbs the dreaded sweet tooth! Also suitable for baking, protein pancakes, and smoothies.
𝗨𝗞 𝗣𝗥𝗢𝗗𝗨𝗖𝗘𝗗 & 𝗜𝗡𝗗𝗘𝗣𝗘𝗡𝗗𝗘𝗡𝗧𝗟𝗬 𝗧𝗘𝗦𝗧𝗘𝗗 – Our products have been developed and manufactured in the UK by leading nutritionists and independently tested to ensure you get only the highest quality, premium nutrients you need and no nasties you don't, all with a delicious taste!
𝗘𝗮𝗰𝗵 𝗯𝗮𝗴 𝗶𝘀 𝟲𝟬𝟬𝗴 | 𝟮𝟬𝗴 𝗼𝗳 𝗽𝗿𝗼𝘁𝗲𝗶𝗻 𝗽𝗲𝗿 𝟯𝟬𝗴 𝘀𝗲𝗿𝘃𝗶𝗻𝗴

8.7

Excellent

We scanned 1298 products

We reviewed these offers relevant to the Protein Supplements within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Optimum Nutrition, The Bulk Protein Company, Applied Nutrition, Bulk, Myprotein, USN, Free Soul, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Protein Supplements in the market, we considered we took a deep dive into 6491 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Optimum Nutrition Gold Standard Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and Amino Acids, Chocolate Hazelnut, 71 Servings, 2.27kg, Packaging May Vary. We love many things about this product by Optimum Nutrition. What sets it apart from the competition is Supports fitness journey from start, Assists muscle gain, aids recovery, Offers variety in sizes, flavors.
The best value product for most shoppers and where user satisfaction is continuously the highest is SERIOUS PROTEIN – Protein Powder – 4kg – Low Carb – Supports Lean Muscle Growth – Recovery Supplement - The Bulk Protein Company - 133 Servings (Chocolate) by The Bulk Protein Company based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Protein Supplements and the best cost-to-value ratio is Optimum Nutrition Gold Standard Whey Protein Powder Muscle Building Supplements With Glutamine and Amino Acids, French Vanilla Creme, 30 Servings, 900 g, Packaging May Vary, 891 - 908 gat Optimum Nutrition with a 23% discount.
Our list of the best Protein Supplements is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Protein Supplements in The UK

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We scanned 1298 products

We concluded that: