Best Whey Protein Powder 5kg Optimum Nutrition of 2026

Last updated on 07/01/2026
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1
Optimum Nutrition 100% Gold Standard Whey Protein Bag 10lb 4.5kgs 154 Servings - Strawberry
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Optimum Nutrition 100% Gold Standard Whey Protein Bag 10lb 4.5kgs 154 Servings - Strawberry

Optimum Nutrition
Why we love it
  • High protein content boosts performance.
  • Quick absorption for efficient results.
  • Minimal sugar and fat levels.
Main Highlights
  • 24 g protein per dose
  • Very fast assimilation
  • Low sugar and fats
Show More
9.9
Exceptional
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9.9
Exceptional
Optimum Nutrition

Optimum Nutrition 100% Gold Standard Whey Protein Bag 10lb 4.5kgs 154 Servings - Strawberry

Why we love it
  • High protein content boosts performance.
  • Quick absorption for efficient results.
  • Minimal sugar and fat levels.
Main Highlights
  • 24 g protein per dose
  • Very fast assimilation
  • Low sugar and fats
Show More
Value for Money
2
Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Vanilla Ice Cream Flavour, 151 Servings, 4.53 kg
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Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Vanilla Ice Cream Flavour, 151 Servings, 4.53 kg

Optimum Nutrition
14% Off
Why we love it
  • Supports muscle gain and recovery.
  • Available in various flavors.
  • Easy and convenient use.
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
  • OPTIMUM NUTRITION, Unit 3, Romaldkirk Road, Riverside Park, Middlesborough, TS2 1XA, GB.
Show More
9.7
Exceptional
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9.7
Exceptional
Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Vanilla Ice Cream Flavour, 151 Servings, 4.53 kg

14% Off
Why we love it
  • Supports muscle gain and recovery.
  • Available in various flavors.
  • Easy and convenient use.
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
  • OPTIMUM NUTRITION, Unit 3, Romaldkirk Road, Riverside Park, Middlesborough, TS2 1XA, GB.
Show More
3
Pure Whey Protein Concentrate 80 - Premium Grass Fed, Low Carb, Low Fat Supplement - 20g Protein Per Scoop - Bodybuilding Warehouse (Smooth Milk Chocolate, 5kg)
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Pure Whey Protein Concentrate 80 - Premium Grass Fed, Low Carb, Low Fat Supplement - 20g Protein Per Scoop - Bodybuilding Warehouse (Smooth Milk Chocolate, 5kg)

Bodybuilding Warehouse
Why we love it
  • Exceptional quality from European sources.
  • Amazing nutritional profile with low carbs.
  • Convenient and easy to mix.
Main Highlights
  • ✔️ Pure Whey 80 is exceptional quality - we only use the finest grass-fed, European-sourced whey protein, then blend and flavour in-house in our own state-of-the-art manufacturing facility to exceptional standards of quality and care. This ensures Pure Whey 80 is the highest quality protein in the UK, and we maintain excellent value by doing everything in-house.
  • ✔️ Benefits - excellent protein uptake and amino acid availability (for Pure Whey 80's incredible amino acid profile, scroll down). Pure Whey 80 really is the gold standard of whey protein - with a huge 80% protein, very low carbs, low sugar, and low fat. Just 1.17 grams of carbohydrates per scoop.
  • ✔️ Directions - Take 1-2 servings of Pure Whey Protein Concentrate 80 first thing in the morning with breakfast, then again immediately following your workout. You can have Pure Whey 80 at any point in the day when a high-protein meal or snack is required, or simply because you enjoy the taste. Pure Whey Protein Concentrate 80 can be mixed with milk or water and due to being instantised mixes easily. Simply add 1 scoop of Pure Whey Protein to 150ml of water or milk in your Bodybuilding Warehouse shaker, shake, and drink. Add more water for a less intense flavour, and less for a more intense flavour.
  • ✔️ Serving Size - 25g
  • ✔️ This ensures Pure Whey 80 is the highest quality protein in the UK, and we maintain excellent value by doing everything in-house. There is no middleman, Pure Whey 80 is made using the finest whey available, blended and packed in-house.
Show More
9.5
Superb
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9.5
Superb
Bodybuilding Warehouse

Pure Whey Protein Concentrate 80 - Premium Grass Fed, Low Carb, Low Fat Supplement - 20g Protein Per Scoop - Bodybuilding Warehouse (Smooth Milk Chocolate, 5kg)

Why we love it
  • Exceptional quality from European sources.
  • Amazing nutritional profile with low carbs.
  • Convenient and easy to mix.
Main Highlights
  • ✔️ Pure Whey 80 is exceptional quality - we only use the finest grass-fed, European-sourced whey protein, then blend and flavour in-house in our own state-of-the-art manufacturing facility to exceptional standards of quality and care. This ensures Pure Whey 80 is the highest quality protein in the UK, and we maintain excellent value by doing everything in-house.
  • ✔️ Benefits - excellent protein uptake and amino acid availability (for Pure Whey 80's incredible amino acid profile, scroll down). Pure Whey 80 really is the gold standard of whey protein - with a huge 80% protein, very low carbs, low sugar, and low fat. Just 1.17 grams of carbohydrates per scoop.
  • ✔️ Directions - Take 1-2 servings of Pure Whey Protein Concentrate 80 first thing in the morning with breakfast, then again immediately following your workout. You can have Pure Whey 80 at any point in the day when a high-protein meal or snack is required, or simply because you enjoy the taste. Pure Whey Protein Concentrate 80 can be mixed with milk or water and due to being instantised mixes easily. Simply add 1 scoop of Pure Whey Protein to 150ml of water or milk in your Bodybuilding Warehouse shaker, shake, and drink. Add more water for a less intense flavour, and less for a more intense flavour.
  • ✔️ Serving Size - 25g
  • ✔️ This ensures Pure Whey 80 is the highest quality protein in the UK, and we maintain excellent value by doing everything in-house. There is no middleman, Pure Whey 80 is made using the finest whey available, blended and packed in-house.
Show More
4
Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Double Rich Chocolate Flavour, 73 Servings, 2.26 kg
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Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Double Rich Chocolate Flavour, 73 Servings, 2.26 kg

Optimum Nutrition
13% Off
Why we love it
  • Supports fitness journey from start.
  • Assists in muscle gain, recovery.
  • Variety of flavors available.
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
Show More
9.4
Superb
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9.4
Superb
Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Double Rich Chocolate Flavour, 73 Servings, 2.26 kg

13% Off
Why we love it
  • Supports fitness journey from start.
  • Assists in muscle gain, recovery.
  • Variety of flavors available.
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
Show More
5
Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins and Minerals, Vanilla Flavour, 16 Servings, 5.45KG
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Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins and Minerals, Vanilla Flavour, 16 Servings, 5.45KG

Optimum Nutrition
12% Off
Why we love it
  • Supports muscle growth and performance.
  • Promotes recovery with essential nutrients.
  • Offers tasty, customizable protein smoothies.
Main Highlights
  • PACKAGING MAY VARY: New look, with the same trusted Quality!
  • Mass gainer with whopping 1250 CALORIES and 50g of PROTEIN per serving. Contains less than 5g fat!
  • Comes as an instantised powder. Mix with fruit or nut butters for a tasty and calorific post-workout drink or take between meals to ENCOURAGE MUSCLE GROWTH
  • PROUDLY CONTAINS NO ADDED SUGAR! Boasts 24 vitamins and minerals per serving
  • GREAT VALUE FOR MONEY. Serious Mass protein powder delivers a high-calorie content and quality protein at competitive rates
  • Provides calories, ENCOURAGING WEIGHT GAIN and refuels body’s glycogen stores
  • Low fat mass gainer with over 1250 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
  • No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 250 grams of CARBOHYDRATES helping support muscle recovery***
  • Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
  • To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
Show More
9.3
Superb
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9.3
Superb
Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins and Minerals, Vanilla Flavour, 16 Servings, 5.45KG

12% Off
Why we love it
  • Supports muscle growth and performance.
  • Promotes recovery with essential nutrients.
  • Offers tasty, customizable protein smoothies.
Main Highlights
  • PACKAGING MAY VARY: New look, with the same trusted Quality!
  • Mass gainer with whopping 1250 CALORIES and 50g of PROTEIN per serving. Contains less than 5g fat!
  • Comes as an instantised powder. Mix with fruit or nut butters for a tasty and calorific post-workout drink or take between meals to ENCOURAGE MUSCLE GROWTH
  • PROUDLY CONTAINS NO ADDED SUGAR! Boasts 24 vitamins and minerals per serving
  • GREAT VALUE FOR MONEY. Serious Mass protein powder delivers a high-calorie content and quality protein at competitive rates
  • Provides calories, ENCOURAGING WEIGHT GAIN and refuels body’s glycogen stores
  • Low fat mass gainer with over 1250 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
  • No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 250 grams of CARBOHYDRATES helping support muscle recovery***
  • Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
  • To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
Show More
6
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate Peanut Butter, 16 Servings, 5.45 kg, Packaging May Vary
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Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate Peanut Butter, 16 Servings, 5.45 kg, Packaging May Vary

Optimum Nutrition
12% Off
Why we love it
  • Supports muscle growth and performance.
  • Healthy, low-fat, high-calorie content.
  • Six tasty, varied flavors.
Main Highlights
  • Low fat mass gainer with over 1250 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
  • No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 250 grams of CARBOHYDRATES helping support muscle recovery***
  • Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
  • To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
  • Source EFSA Journal *2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; ***2011; 9(7):2303
Show More
9.2
Superb
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9.2
Superb
Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate Peanut Butter, 16 Servings, 5.45 kg, Packaging May Vary

12% Off
Why we love it
  • Supports muscle growth and performance.
  • Healthy, low-fat, high-calorie content.
  • Six tasty, varied flavors.
Main Highlights
  • Low fat mass gainer with over 1250 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
  • No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 250 grams of CARBOHYDRATES helping support muscle recovery***
  • Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
  • To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
  • Source EFSA Journal *2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; ***2011; 9(7):2303
Show More
7
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45 kg
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Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45 kg

Optimum Nutrition
12% Off
Why we love it
  • Supports muscle growth and performance.
  • Promotes muscle recovery after workouts.
  • Comes in 6 delicious flavours.
Main Highlights
  • Low fat mass gainer with over 1262 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
  • No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 248 grams of CARBOHYDRATES helping support muscle recovery***
  • Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
  • To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
  • Source EFSA Journal *2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; ***2011; 9(7):2303
Show More
9.1
Superb
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9.1
Superb
Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45 kg

12% Off
Why we love it
  • Supports muscle growth and performance.
  • Promotes muscle recovery after workouts.
  • Comes in 6 delicious flavours.
Main Highlights
  • Low fat mass gainer with over 1262 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
  • No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 248 grams of CARBOHYDRATES helping support muscle recovery***
  • Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
  • To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
  • Source EFSA Journal *2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; ***2011; 9(7):2303
Show More
8
Sports Fue Anabolic Whey Matrix Protein Powder (Vanilla, 5kg)

Sports Fue Anabolic Whey Matrix Protein Powder (Vanilla, 5kg)

Sports Fuel
Why we love it
  • Huge protein content in servings.
  • Ensures perfect nutrition anytime.
  • Exceptional mixability and utilization.
Main Highlights
  • ✔️ Our Whey Matrix offers a HUGE 20g protein per serving! Ultra-premium, time-released protein sources. 100% Instantised and un-denatured to ensure exceptional mixability and utilisation! Simply put... ridiculously delicious!
  • ✔️ Benefits - This Whey, Milk and soy protein blend may be the perfect combination of fast, slow and medium-speed proteins to ensure perfect nutrition at any time of day!
  • ✔️ Directions - Add one serving of Sports Fuel Whey Matrix protein powder to 250ml of water or your preferred liquid and blend or shake. For best results, consume immediately after training and first thing in the morning.
  • ✔️ Serving Size: 30g
  • ✔️ Whey Matrix is made using the finest ingredients, blended and packed in-house.
Show More
8.9
Excellent
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8.9
Excellent
Sports Fuel

Sports Fue Anabolic Whey Matrix Protein Powder (Vanilla, 5kg)

Why we love it
  • Huge protein content in servings.
  • Ensures perfect nutrition anytime.
  • Exceptional mixability and utilization.
Main Highlights
  • ✔️ Our Whey Matrix offers a HUGE 20g protein per serving! Ultra-premium, time-released protein sources. 100% Instantised and un-denatured to ensure exceptional mixability and utilisation! Simply put... ridiculously delicious!
  • ✔️ Benefits - This Whey, Milk and soy protein blend may be the perfect combination of fast, slow and medium-speed proteins to ensure perfect nutrition at any time of day!
  • ✔️ Directions - Add one serving of Sports Fuel Whey Matrix protein powder to 250ml of water or your preferred liquid and blend or shake. For best results, consume immediately after training and first thing in the morning.
  • ✔️ Serving Size: 30g
  • ✔️ Whey Matrix is made using the finest ingredients, blended and packed in-house.
Show More
9
Kinetica Sports OatGain Mass Gainer–Raspberry Yoghurt, 2.4Kg, 15 Servings | 46g Protein, 78g Carbs & 620 Kcal/Serve |Optimum Bulk Weight Gain Whey Protein Supplement | WADA & Informed Sport Approved
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Kinetica Sports OatGain Mass Gainer–Raspberry Yoghurt, 2.4Kg, 15 Servings | 46g Protein, 78g Carbs & 620 Kcal/Serve |Optimum Bulk Weight Gain Whey Protein Supplement | WADA & Informed Sport Approved

Kinetica
Why we love it
  • Unrivalled taste and aroma.
  • Easy to mix consistency.
  • Boost energy, repair muscles.
Main Highlights
  • Irresistible Flavour for Maximum Enjoyment: Kinetica Sports OatGain Mass Gainer comes in two mouthwatering flavours: Chocolate Caramel Nut and Raspberry Yoghurt. Each delivers a rich, satisfying taste and aroma, making it easy and enjoyable to fuel your body with extra calories and nutrients to support high training loads.
  • Smooth & Easy Mixability: Experience hassle-free mixing with Kinetica Sports OatGain Weight Gainer. Whether you prefer water, milk, or milk alternatives, our mass gainer powder mixes easily with milk or water for a high protein, high calorie shake in seconds.
  • High-Calorie Fuel for Muscle & Energy: Each serving of Kinetica Sports OatGain mass gainer provides 630 Kcals and 46g of protein to help you gain weight, increase overall muscle mass, and replenish your energy stores, making it ideal for intense workouts and recovery. Along with just 6.4g of sugar per serving, OatGain is also enriched with 3.2g of Taurine, 3.0g of L-Glutamine and a complete range of vitamins including B Vitamins, A, C, D, E and K to support energy metabolism, muscle recovery.
  • Convenient & Versatile for Any Lifestyle: Kinetica OatGain weight gainer is perfect for anyone looking to intake a high volume of calories for weight gain or energy regeneration. It’s suitable for vegetarians and can be used as a post-workout shake, meal replacement, or mid-day snack. Simply mix one serving with water, milk, or your preferred beverage for a quick and nutritious option.
  • Quality Assured & Batch-Tested for Safety: Kinetica Sports OatGain mass gainer is batch-tested under the Informed-Sport testing program to ensure that every batch complies with WADA’s high standards. You can trust that OatGain is free from banned substances and made with quality ingredients to fuel your training safely and effectively.
Show More
8.7
Excellent
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8.7
Excellent
Kinetica

Kinetica Sports OatGain Mass Gainer–Raspberry Yoghurt, 2.4Kg, 15 Servings | 46g Protein, 78g Carbs & 620 Kcal/Serve |Optimum Bulk Weight Gain Whey Protein Supplement | WADA & Informed Sport Approved

Why we love it
  • Unrivalled taste and aroma.
  • Easy to mix consistency.
  • Boost energy, repair muscles.
Main Highlights
  • Irresistible Flavour for Maximum Enjoyment: Kinetica Sports OatGain Mass Gainer comes in two mouthwatering flavours: Chocolate Caramel Nut and Raspberry Yoghurt. Each delivers a rich, satisfying taste and aroma, making it easy and enjoyable to fuel your body with extra calories and nutrients to support high training loads.
  • Smooth & Easy Mixability: Experience hassle-free mixing with Kinetica Sports OatGain Weight Gainer. Whether you prefer water, milk, or milk alternatives, our mass gainer powder mixes easily with milk or water for a high protein, high calorie shake in seconds.
  • High-Calorie Fuel for Muscle & Energy: Each serving of Kinetica Sports OatGain mass gainer provides 630 Kcals and 46g of protein to help you gain weight, increase overall muscle mass, and replenish your energy stores, making it ideal for intense workouts and recovery. Along with just 6.4g of sugar per serving, OatGain is also enriched with 3.2g of Taurine, 3.0g of L-Glutamine and a complete range of vitamins including B Vitamins, A, C, D, E and K to support energy metabolism, muscle recovery.
  • Convenient & Versatile for Any Lifestyle: Kinetica OatGain weight gainer is perfect for anyone looking to intake a high volume of calories for weight gain or energy regeneration. It’s suitable for vegetarians and can be used as a post-workout shake, meal replacement, or mid-day snack. Simply mix one serving with water, milk, or your preferred beverage for a quick and nutritious option.
  • Quality Assured & Batch-Tested for Safety: Kinetica Sports OatGain mass gainer is batch-tested under the Informed-Sport testing program to ensure that every batch complies with WADA’s high standards. You can trust that OatGain is free from banned substances and made with quality ingredients to fuel your training safely and effectively.
Show More
10
Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Extreme Milk Chocolate Flavour, 28 Servings, 896 g
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Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Extreme Milk Chocolate Flavour, 28 Servings, 896 g

Optimum Nutrition
24% Off
Why we love it
  • Supports muscle gain and recovery.
  • Low in sugar and fat.
  • Variety of flavors available.
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
Show More
8.7
Excellent
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8.7
Excellent
Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Extreme Milk Chocolate Flavour, 28 Servings, 896 g

24% Off
Why we love it
  • Supports muscle gain and recovery.
  • Low in sugar and fat.
  • Variety of flavors available.
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
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We scanned 1460 products

We reviewed these offers relevant to the Whey Protein Powder 5kg Optimum Nutrition 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, Bodybuilding Warehouse, Sports Fuel, Kinetica, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best Whey Protein Powder 5kg Optimum Nutrition in the market, we considered we took a deep dive into 7301 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: