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

Person lifting a barbell in a gym setting, with text overlay stating "Powering Billions of Workouts Since 1986."

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 35 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
Can You Build Muscle with a Plant-Based Diet? Science-Backed Insights
Nutrition

Can You Build Muscle with a Plant-Based Diet? Science-Backed Insights

By Dr. Mark Evans, PhD, Optimum Nutrition, EMEA Performance Nutritionist Key Learnings Protein and muscle building: Proteins, which are composed of amino acids, serve as the building blocks requ...

A Beginner's Guide to Whey Protein- What, Why, When and How?
Nutrition

A Beginner's Guide to Whey Protein- What, Why, When and How?

Key Learnings What is whey protein? Whey protein is a high-quality protein source derived from milk. Why does your body need whey protein? Protein is crucial for muscle repair and growth, making...

A Comprehensive Guide to Nutrition for Weight Gain and Bulking
Nutrition

A Comprehensive Guide to Nutrition for Weight Gain and Bulking

By Dr. Crionna Tobin, Phd, Optimum Nutrition, Head of Nutrition & Education Key Learnings Understanding Weight Gain and Bulking. Weight gain and bulking involve intentionally increasing body...