Protein

Build muscle and support recovery high quality protein
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Are you new to supplements?

Are you new to supplements?

Learn more about protein

Our Protein Powders

Optimum Nutrition Gold Standard 100% Whey protein powder, 5 lb container, Double Rich Chocolate flavor

Gold Standard 100% Whey Protein

Provides 24 g fast‑absorbing whey protein with 5.5 g BCAAs to support muscle growth and maintenance. Best used post‑workout or anytime to help meet daily protein goals.

Optimum Nutrition Gold Standard 100% Isolate whey protein powder, 1.36kg container, chocolate flavor

Gold Standard 100% Isolate Protein

Delivers 25 g ultra‑filtered whey isolate with very low sugar and fat for lean protein support. Best used when you want a light, clean whey option before or after training.

Optimum Nutrition Platinum Hydro Whey protein powder, 1.8 kg container, milk chocolate flavor

Platinum Hydrowhey

Features hydrolysed whey isolate for ultra‑fast protein delivery after intense training. Best used when you need the fastest‑digesting whey to support rapid post‑exercise intake.

Optimum Nutrition Serious Mass, 5 lb container, chocolate flavor, high-calorie protein powder for weight gain

Serious Mass Gainer

Serious Mass delivers 1,250 calories, 50 g protein and over 250 g carbs per serving to support weight gain and muscle growth. Best used post‑workout or between meals to help achieve a calorie surplus.

Optimum Nutrition Gold Standard 100% Casein protein powder, 1.82 lb container, creamy vanilla flavor

Gold Standard 100% Casein

Provides about 24 g slow‑release casein protein for sustained amino acid delivery. Best used before bed or during long gaps to support steady protein intake.

Optimum Nutrition Gold Standard 100% Plant protein powder, 684g container, French Vanilla Crème flavor

Gold Standard 100% Plant Protein Powder

Offers 24 g plant‑based protein in a smooth, creamy shake suitable for vegans. Best used as a dairy‑free daily protein source to support active lifestyles.

Optimum Nutrition Clear Protein, 100% Plant Protein Isolate, Juicy Peach, 280g container, 20g protein per serving

Clear Protein 100% Plant Protein Powder

Provides 20 g hydrolysed pea protein and 3.6 g BCAAs, all sugar‑free in a refreshing clear drink. Best used pre‑ or post‑workout for a light, non‑milky plant protein option.

Clear Whey Protein Isolate + Collagen Powder

Combines about 20 g protein from whey isolate and collagen in a clear, juice‑style formula. Best used whenever you want a light, refreshing protein boost instead of a creamy shake.

Collagen Peptides

Supplies around 20 g hydrolysed collagen in an easy‑mix, neutral‑tasting format. Best used daily in drinks to add extra protein as part of an active routine.

Protein On The Go

Optimum Nutrition protein bar, Chocolate Sweet Coconut flavor, 18g protein per serving

Protein Bars

Each bar provides 18 g high‑quality protein to support muscle repair and satisfy cravings in a convenient on‑the‑go format. Best used post‑workout or as a quick protein snack anytime.

High Protein Shake

This ready‑to‑drink shake delivers 25–50 g of protein in a low‑fat, no‑added‑sugar format for easy daily protein support. Best enjoyed after training or between meals for convenient protein intake.

Protein Water

Protein Water provides 16 g whey protein isolate in a light, refreshing, sugar‑free drink with just 64 calories. Best used post‑workout or on‑the‑go when you want a hydrating, low‑calorie protein boost.

Used by elite athletes

Marcus Smith, one of rugby’s most exciting and creative playmakers uses GOLD STANDARD 100% WHEY as part of his diet. It plays a pivotal role in his performance and recovery at the highest level.

Start With the Essentials

  • Protein is one of the main building blocks your body needs to stay strong and healthy.
  • It helps maintain and grow muscle mass,* which is essential for an active lifestyle.
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What Makes Us Different?

♛ Unmatched Heritage & Leadership
We hold ourselves to The Gold Standard for quality & taste.

★ Best-in-Class Quality

Quality is in our DNA and has been central to our brand and products since 1986.

✓ Proven, Trusted Performance Across the Globe
Athletes across all sports and levels choose OPTIMUM NUTRITION, making us the #1 Whey Protein Brand in the World and #1 Creatine Brand in the US and UK.

About Us

FAQ

Want to learn more?

From daily intake to how it can support your training goals – get to grips with what protein is and why it matters.

How much protein do you...

Daily protein needs are not one-size-fits-all; they depend on factors like age, weight, and activity level. Different types of exercises, from...

Which protein powder is right...

There are so many different types of protein shakes out there that it is hard to know which one suits your goals. Each shake has its...

Can you build muscle with a...

In recent years, the surge in popularity of plant-based diets has sparked a debate: Can you build muscle effectively with a...

Protein Powders are NOT all the ..

Not all protein powders are the same – whey protein is a high-quality protein containing all the essential amino acids you need...

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Official Claims:

* Protein contributes to growth and maintenance of muscle mass with regular weights resistance training.