Buying Guides
What Supplement Quality Markers Mean in Australia
30 June 2026 · 7 min read
Products classified as listed medicines in Australia carry an AUST L number on the label, indicating they are entered on the Australian Register of Therapeutic Goods.
Sports foods such as protein powders are typically regulated as foods rather than therapeutic goods, so they will not carry an AUST L number. That is not a quality flaw — it reflects a different regulatory pathway.
Batch testing programmes such as HASTA and Informed Sport screen finished products for substances banned in sport. Competitive athletes should prioritise batch-tested products.
Look for a clear nutrition information panel, a full ingredient list, allergen declarations, a batch number and an expiry date.
If a claim sounds like a guaranteed outcome, treat it with scepticism. Supplements support a diet and training programme rather than replacing them.
This article is general information only and is not medical advice, diagnosis or treatment. Supplements should not replace a balanced diet. Always read the label and follow the directions for use. Speak with your doctor or pharmacist before starting a new supplement, particularly if you are pregnant, breastfeeding, taking medication or managing a health condition.