New to Supplements?
Start your journey here. We'll make it simple.
What are Supplements?
Supplements are support for your body. They fill small gaps in your diet so you get the nutrients you need. Even if you eat a healthy diet, it can be hard to get enough protein, vitamins, or minerals every day. That’s where supplements come in. They make it easier to stay energised, maintain & repair muscles*, and support your overall health without overcomplicating things.
Why People Take Supplements
- Support Energy for Busy Days: Supplements like caffeine increase alertness and improve concentration, while minerals like magnesium reduce tiredness and fatigue.*
- Build & Maintain Muscle Mass: Protein contributes to growth and maintenance of muscle mass with regular resistance training.*
- Support Healthy Bones & Joints: Collagen & Vitamin C aid in normal function of cartilage while calcium helps maintain healthy bones.*
- Fill Nutritional Deficiencies: Even with a healthy diet, it’s hard to get all the nutrients your body needs every day. Supplements make it easier.
We've simplified the science. Explore the essentials below.
Protein
A nutrient that helps maintain and grow muscle mass with regular resistance training.
Creatine
A compound that supports energy production.
Energy
Electrolytes and energy blends that help your body stay energised.
Mass Gainers
High-calorie protein formulas to support weight gain or maintenance.
Multivitamins
Essential vitamins and minerals to fill gaps in your daily nutrient needs.
How much protein do I need?
Find out in under 60 seconds with our protein calculator.
GET YOUR DAILY PROTEIN INTAKE
Questions about supplements?
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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.
Official Claims:
* Protein contributes to growth and maintenance of muscle mass with regular weights resistance training.
* Creatine increases physical performance in successive bursts of short-term, high intensity exercise
* Vitamin C contributes to the normal collagen formation for the normal function of cartilage.
* Zinc contributes to a health immune system.
* Magnesium contributes to the reduction of tiredness and fatigue, electrolyte balance, normal energy yielding metabolism, normal functioning of the nervous system, normal muscle function.
* Magnesium contributes to normal protein synthesis.
* Caffeine contributes to increased alertness and improved concentration
* Magnesium contributes to electrolyte balance
* Iron contributes to normal formation of red blood cells and haemoglobin
