Terms and disclaimer

General information only

These calculators provide general estimates. They are not personalised medical advice, dietetic advice, clinical advice, diagnosis, treatment, prevention, a medical device or a guarantee of performance.

Get professional advice first if needed

Speak to a GP, pharmacist, registered dietitian, sports cliniciana physician, pharmacist, registered dietitian, sports clinician or other qualified professional before using supplement advice if you are under 18, pregnant, breastfeeding, have kidney, heart, blood-pressure, eating-disorder or medical concerns, take medication, compete under supplement rules, or are unsure whether a supplement is safe for you.

If a professional’s advice conflicts with this site, follow the professional advice.