Train Like the Best

Dan Sheehan

Discover how this world-class rugby player prepares and fuels for elite performance.
LEARN MORE

New to supplements? Let’s take the first step together.

Supplements don’t have to be complicated — let us show you.

LEARN MORE

Unlock More You

What Are You Training For?

Your Progress Is Our Purpose

A person lifting a barbell in a gym setting, focusing on strength training

Unmatched Performance Nutrition Since 1986

OPTIMUM NUTRITION has always been about helping people unlock their potential. No matter your goal or level, if you’re putting it in, we’ll help you get more out. As the World’s #1 sports nutrition brand, we’ve been delivering trusted performance nutrition for over 40 years.

READ OUR STORY

Fuel Your Knowledge. Power Your Journey.

How much protein do I need?

Find out in under 60 seconds with our protein calculator.

GET YOUR DAILY PROTEIN INTAKE

Questions about supplements?

Get instant answers with Coach Optimum — our AI tool for supplement advice.

CHAT WITH COACH OPTIMUM

Train Your Mind. Master Your Nutrition.

See more advice and recipes
Whey Protein Explained
Supplementen

Whey Protein Explained

Why Take Protein? It is recommended that athletes consume a daily protein intake of between 1.4-2.3g per kg body weight depending on their training goals. An athlete whose goal is to increase lean ...

Why Choose Casein?
Supplements

Why Choose Casein?

Here are six facts about the benefit of Casein from the brand that first brought Micellar Casein to the market in a convenient format back in 2005 with Gold Standard 100% Casein. Casein makes up t...

Building Muscle with Supplements
Supplements

Building Muscle with Supplements

Muscle building is a result of resistance training, so any supplement that improves training and performance has the potential to directly or indirectly promote muscle building. In order to underst...