Protein Calculator
Get estimated daily protein requirements based on your training goals and expert advice to help you unlock more from your training.
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"Disclaimer: The macronutrient guidelines provided by this calculator may support your training & body composition goals as part of a healthy lifestyle and appropriate exercise programme. An increase in muscle can only be achieve in conjunction with an appropriate resistance training programme. Similarly, a reduction in calories is only one of the lifestyle moderating factors required to reduce body fat.* Euromonitor International Limited; Consumer Health 2024 Edition, Sports Nutrition category, %retail value shares, 2023 data. "

How much protein per day do you need? In under 60 seconds discover:
- How much protein per day you need, along with tailored recommendations for carbohydrates, fats, and calories based on your training goals.
- What Optimum Nutrition products are best suited to unlock more from your training and exercise.
- Expert tips to help you achieve your health and fitness goals.
Our Athletes Protein Numbers



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This calculator is for those aged 18 years and older. The protein calculator is for education purposes only. The calorie and macronutrient recommendations provided by this calculator are ESTIMATES based on independent scientific formula and should only be used as guidelines. We advise that those seeking specific guidelines consult a sports dietician/nutritionist.