Health and wellbeing supplements are products intended to add nutrients or other ingredients to a person's diet. This broad category can include multivitamins, greens powders, probiotics, joint-support formulas and single ingredients. Their purpose, evidence and regulation vary, so choose for a specific need and read the label rather than assuming every wellness product does the same job.

Not everyone needs a daily supplement. Many people can meet nutrient needs through a varied diet, while a diagnosed deficiency, restricted diet, life stage or clinician's advice may create a specific need. If you do use one, follow its directions and review overlapping ingredients across your routine instead of treating more as automatically better.

A multivitamin combines several vitamins and often minerals in one product. It can help fill selected dietary gaps, but it does not replace a balanced diet and different formulas provide very different amounts. Compare nutrients against your needs and other supplements, and seek professional advice if you have a deficiency, take medicines or are pregnant.

Greens powders can provide a convenient mix of plant ingredients, vitamins, minerals or other added compounds, depending on the formula. They are not equivalent to eating a variety of vegetables, fruit, legumes and whole foods, which also supply fibre and food structure. Check the full ingredient list, nutrient amounts, sweeteners, allergens and serving directions.

No. A greens powder may complement a diet, but it should not replace vegetables and other whole plant foods. Whole foods provide fibre, energy, water and a complex mix of nutrients that a scoop may not reproduce. Use the nutrition panel to see what a product actually contributes rather than relying on the word 'greens'.

Probiotics are live microorganisms supplied in certain foods and supplements. Products differ by strain, number of organisms, storage needs and intended use, so 'probiotic' is not one interchangeable ingredient. Look for named strains, clear storage directions and an expiry or use-by date. Ask a health professional about a specific digestive concern.

There is no single best probiotic for everyone. Effects are strain- and condition-specific, and a high organism count does not guarantee a better match. Choose a product with clearly identified strains and directions relevant to your purpose. Persistent pain, bleeding, unexplained weight loss or major bowel changes need medical assessment rather than self-treatment.

Joint-support products may contain ingredients such as collagen, glucosamine, chondroitin, curcumin or selected minerals, but formulas and evidence differ. Supplements cannot diagnose or repair an injury on their own. Compare ingredient amounts, allergens and warnings, and seek professional assessment for swelling, instability, persistent pain or reduced movement.

Start with a clear reason for taking it. Then compare active ingredients, amount per serve, directions, warnings, allergens, dietary preferences, price per serve and, where relevant, Australian regulatory details or sports certification. Avoid proprietary blends that hide amounts. A pharmacist or Accredited Practising Dietitian can help check whether the product fits your needs.

Sometimes, but ingredient overlap and interactions are easy to miss. Multivitamins, sleep products, greens and performance formulas may repeat vitamins, minerals, herbs or stimulants. List everything you use, compare the labels and avoid exceeding directions. Ask a pharmacist to review the combination if you take medicines, have a medical condition or use many products.

Yes. Supplements can change how some medicines work, increase side effects or be affected by the medicine. Herbs, minerals and high-dose vitamins can all matter, even when a product is described as natural. Tell your doctor and pharmacist about every supplement you take, particularly before surgery or when starting or changing prescribed treatment.

No. 'Natural' describes a source or marketing position, not a guarantee of safety. Natural ingredients can cause side effects, trigger allergies, interact with medicines or be unsafe at high amounts. Use the labelled serving, check warnings and choose reputable Australian supply. Stop use and seek advice if you experience a suspected reaction.

Many therapeutic supplements display an AUST L, AUST L(A) or AUST R number on the label, showing they are included in the Australian Register of Therapeutic Goods under the relevant pathway. Some sports foods are regulated as foods instead. The product's presentation and claims affect classification, so check the pack and TGA information when relevant.

HASTA and Informed Sport are third-party testing programs used to reduce the risk of prohibited substances in sports supplements. Certification can help tested athletes make a more informed choice, but no supplement is completely risk-free. Confirm the exact product and batch where applicable, and follow your sport's anti-doping rules.

A product labelled vegan should exclude animal-derived ingredients, but that does not automatically answer every allergy or manufacturing question. Read the allergen statement and dietary icons on the exact flavour and size. People with severe allergies should also check cross-contact information and contact the manufacturer when the label is unclear.

Do not assume a general wellness product is suitable during pregnancy or breastfeeding. Some vitamins, minerals, herbs and concentrated extracts may be inappropriate, while certain nutrients need specific professional guidance. Check with your doctor, pharmacist or Accredited Practising Dietitian before starting or continuing a supplement, including greens, sleep and herbal formulas.