The Sydney Morning Herald’s article series on vitamins and supplements published today contains some interesting and educational information. In Australia, vitamin and mineral supplements are regulated as medicines (called ‘complementary medicines’). As the peak industry body representing Australia’s complementary medicines sector, we fully support consumer safety and evidence-based decision-making.

However, we believe it’s important to correct some misconceptions and incorrect information that may mislead consumers. Australia has a very different regulatory environment and our products can’t be easily compared to those purchased from overseas.

Supporting consumer safety through world-class regulation

The articles raise important questions about vitamin safety and quality, referring to overseas studies that found significant labelling inaccuracies and contamination issues. In Australia, these concerns are addressed through what are the world’s strictest regulatory standards for complementary medicines. The Therapeutic Goods Administration (TGA) maintains rigorous oversight over product content, contamination controls and manufacturing that extends far beyond what exists in many overseas countries referenced in the articles.

Complementary medicines sold legally in Australia must display an AUST L, AUST L(A), or AUST R number on the label. This confirms the product is included on the Australian Register of Therapeutic Goods (ARTG) and is subject to strict, mandatory safety and quality standards.

Vitamin and mineral products without these numbers are illegal and should be avoided. This provides immediate visibility of whether a product is subject to mandatory Australian standards. Countries where the problematic studies cited in the articles were conducted do not have equivalent standards.

Unlike the overseas studies cited in the articles that found significant labelling inaccuracies, Australian products are subject to Good Manufacturing Practice (GMP) and Australian-specific manufacturing requirements. The TGA conducts post-market surveillance, compliance reviews, and takes enforcement action and recalls against products that don’t meet expectations.

There are 82 TGA-licensed manufacturing facilities across Australia – these must all comply with international standards including the Pharmaceutical Inspection Co-operation Scheme (PICS) which is the highest level of medicinal GMP control globally.

Addressing safety concerns responsibly

The series highlighted recent media reports on vitamin B6 adverse reactions. These cases demonstrate how Australia’s regulatory system responds appropriately if new safety concerns emerge.

The TGA is proposing to reduce the allowed amount of vitamin B6 from 100mg to 50mg following comprehensive safety reviews and consultation with stakeholders including CMA. Under the new regulations, any consumer taking a product with more than this will have to consult with a pharmacist.

Current regulations already require products containing more than 10mg of vitamin B6 per day to carry mandatory warning labels about potential peripheral neuropathy symptoms – which it should be noted are extremely rare and almost always reversible.

This stands in stark contrast to the unregulated online products mentioned in the articles. Potentially dangerous products available online containing 200-500mg of vitamin B6 are not Australian regulated products and should be avoided. This highlights the importance of choosing Australian-made products that meet TGA standards.

Understanding quality assurance in Australian products

The articles reference several overseas studies showing variable content compared to labels, including a 2022 study of 30 immune health supplements where 17 had inaccurate labels, and a 2023 study of melatonin gummies where 22 of 25 contained different amounts than listed. It is important to note these are not Australian products.

Melatonin is a hormone, not a vitamin or mineral or other complementary medicine allowed in Australia. In Australia, melatonin can only be sold as a prescription drug or by a pharmacist in small amounts to people over 55 or experiencing jetlag. They are products from overseas and are subject to less regulatory oversight than in Australia.

In Australia, complementary medicines must meet strict quality standards enforced by the TGA. These include mandatory ingredient testing, content testing, controls for heavy metals and a range of impurities, testing for bacterial and fungal contamination, and stability requirements. The TGA licenses manufacturing facilities, mandates GMP compliance, and conducts inspections. Ingredients must come from approved lists that have been independently assessed for safety and quality by scientific evaluators.

Recent enforcement actions by the TGA, including removal of illegal products from online marketplaces, demonstrate the system’s effectiveness in protecting consumers from substandard imports that don’t meet Australian standards. This proactive approach to quality assurance is a key difference between Australian products and those from less regulated markets.

That said, we firmly believe more needs to be done to target products making illegal or unjustified health claims, which are usually products on online platforms available in Australia but without an AUST L, LA or R number.

In Australia advertising of complementary medicines must comply with the Therapeutic Goods Advertising Code, to ensure that consumers are not misled or deceived, but provided with accurate information to guide their self-selection of complementary medicines for maintenance of health and well-being or to reduce symptoms of mild conditions. The label on legal Australian micronutrient supplements always includes a statement informing consumers that vitamin and mineral supplements can only be of assistance if dietary intake is inadequate.

Natural or synthetic

The articles suggest uncertainty about whether synthetic vitamins are inferior to natural forms. Current scientific evidence shows that for most vitamins, synthetic and natural forms are chemically identical and equally bioavailable. As noted in the articles, “vitamin C from an orange is the same chemical as vitamin C synthesised.” The source of a vitamin molecule is less important than the final product quality, which in Australia is assured through TGA oversight of manufacturing standards.

Whole foods do provide other nutrients and fibre. Supplements should indeed complement, not replace, a balanced diet rich in fruits, vegetables and other nutritious foods.

However, it is important to recognise that many Australians have poor diets and would benefit from supplementation when diet alone is not enough to meet all nutrient targets. Furthermore, many complementary medicines are intended to provide therapeutic benefits far beyond dietary supplementation.

It is also incorrect to suggest that vitamin and mineral supplements are not cost effective where needs cannot be met through a whole and complete diet. A single zinc tablet providing 30mg of zinc and costing around 14c per tablet provides as much zinc as 5 oysters, 250g beef, 1kg walnuts or 4kg of spinach.

Recognising legitimate health needs

While the articles note that some people may not need vitamin supplements, it appropriately acknowledges that specific populations do benefit. These include pregnant women requiring folate, people with diagnosed deficiencies, those with limited sun exposure needing vitamin D, people with high or regular alcohol intake, and those with increased needs due to medical conditions or medications.

Australia’s health challenges support the appropriate use of complementary medicines. With over 80% of Australians living with a long-term health condition and approximately 50% having at least one chronic disease, complementary medicines play an important role. One-third of Australian adults are deficient in vitamin D, making supplementation particularly relevant for this nutrient which is only found in a few foods. Lifestyle choices and occupational exposures also influence individual requirements for essential minerals and vitamins.

The ageing population is another factor driving legitimate product use. As people age, their ability to synthesise certain vitamins decreases, and absorption of nutrients from food may be compromised. With over 75% of Australian households using complementary medicines, and healthcare systems under strain, appropriate use can support health maintenance and help reduce healthcare costs.

Therapeutic dosing and evidence requirements

The articles question why some supplements contain amounts exceeding recommended daily intakes (RDI). In Australia, there’s an important distinction between preventing deficiency and achieving therapeutic benefits.

For example, the RDI for vitamin C is 45mg daily to prevent scurvy, but research evidence provides that supporting immune function benefits may require higher doses. In Australia, the TGA requires that therapeutic doses be supported by scientific evidence. For example, if clinical research shows that 500mg of vitamin C daily is needed to achieve a particular health benefit, that is the amount the product must contain.

Therapeutic doses used in complementary medicines are generally well within Upper Level of Intake guidelines, and where they exceed these levels, they remain within acceptable safety limits determined by the TGA for therapeutic uses. Products also carry specific warnings and directions for safe use, including guidance for groups who may need to exercise caution.

Preventing overconsumption and supporting safe use

The articles raise concerns about potential overconsumption, particularly with vitamin stacking and combination products. Australian regulations mandate specific warning labels and dosage restrictions for those vitamin and minerals that pose potential toxicity risks when supplemented to safeguard consumer safety. These requirements include establishing maximum permitted daily doses, providing clear usage instructions, recommending professional consultation when appropriate, and including mandatory “always read the label” reminders.

For example, iron supplements include warnings and child-resistant lids, while the daily dose of vitamin D provided by complementary medicines must not exceed 25 micrograms (1000 IU); the upper safe daily limit for vitamin D is 4000 IU per day.

We encourage consumers to follow several key principles for safe supplementation:

• Only choose products with AUST L, AUST L(A), or AUST R numbers on the label
• Follow dosage instructions carefully
• Discuss supplementation with healthcare professionals, especially when taking medications
• Be aware of vitamin and mineral intake levels if consuming multiple products

Product innovation based on medical evidence

The complementary medicines industry continues to evolve to meet consumer needs while maintaining safety and quality standards. Australian manufacturers are at the forefront of developing products that address emerging health concerns.

Research continues into optimal dosing, bioavailability, and safety profiles of various nutrients. Australian academic institutions like Western Sydney University and Southern Cross University lead global research into complementary medicines, contributing to our understanding of how these products can best support health and wellbeing.

Conclusion

Australia’s complementary medicines regulatory framework provides world-leading consumer protection while enabling access to products that genuinely support health and wellbeing. Many of the concerns raised in the articles, while valid in the global context, are largely addressed by Australia’s stringent regulatory system.

CMA remains committed to upholding the highest standards of safety and quality while supporting evidence-based approaches to supplementation. We continue working with regulators, healthcare professionals, and consumers to ensure Australia maintains its position as a global leader in complementary medicines regulation and quality.

The SMH articles correctly emphasise that supplements should complement, not replace, a balanced diet and healthy lifestyle. We agree that the foundations of good health – nutritious food, quality sleep, regular exercise and stress management – are critically important for health and wellbeing.

For consumers seeking reliable information about complementary medicines, we recommend consulting the TGA website, speaking with qualified healthcare professionals, particularly those with extensive training in nutrition, and choosing products that meet Australian regulatory standards. By focusing on quality, safety, and professional guidance, Australians can continue to benefit from complementary medicines while minimising any risks.

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