There is no universal best supplement for this condition. Australian guidance conditionally recommends against routine glucosamine, chondroitin, vitamin D and omega-3 supplements for knee or hip disease. Some product-specific trials of turmeric extracts, Boswellia or collagen report short-term symptom changes, but they do not show joint-tissue regrowth or disease modification.
Treating osteoarthritis starts with a clinical diagnosis, not a label of “wear and tear”. Joint pain, reduced mobility and loss of function should be assessed in context. A hot, red, rapidly swollen joint, fever, a new inability to bear weight or major injury needs prompt medical care rather than a supplement trial.
Written by: Charles Gumbley, BHSc Clinical Nutrition, DipHSc Western Herbal Medicine. Evidence checked: 20 July 2026.
OA Care Comes Before a Supplement
The 2024 Australian knee OA Clinical Care Standard centres care on a person-specific assessment, information and self-management, exercise, physical activity and weight management where relevant. Medicines and surgery have defined roles. Nutritional supplements are not a replacement for these measures.
Knee, hip and hand disease can affect people differently. Rheumatoid arthritis, gout, tendon pain, referred pain and infection require different management. A product marketed to treat arthritis cannot determine which condition is present.
Exercise can temporarily feel uncomfortable but is a core treatment when appropriately prescribed. A physiotherapist or exercise physiologist can adjust strengthening, aerobic activity and pacing for pain and stiffness. Sleep, mood, work demands and other musculoskeletal or health conditions can also affect symptoms and daily function.
Glucosamine Sulfate and Glucosamine and Chondroitin
Glucosamine and chondroitin supplements are commonly sold together because both relate to cartilage biology. Glucosamine sulfate, glucosamine hydrochloride and chondroitin sulfate are different preparations, and findings for one should not be transferred to another.
The RACGP knee and hip guideline suggests not offering glucosamine and chondroitin, alone or combined. A systematic review found statistically significant short-term changes of unclear clinical importance for these ingredients. Neither has dependable evidence of creating new cartilage or stopping joint-space loss.
These products can cause gastrointestinal side effects and may alter anticoagulant control. If you take warfarin, check with your doctor or pharmacist rather than starting, stopping or changing a product independently. Shellfish allergy and product source also need checking.
Curcumin, Cartilage and Other Supplements
Standardised turmeric extracts, Boswellia and some collagen products have short-term signals in trials and reviews. However, extracts, doses, comparators, funding and outcomes vary. A result better than a placebo in one short study may not be clinically important. A 2018 review found several large estimates but judged the overall evidence low quality. A more recent collagen review reported changes in pain and physical function in knee disease, not proof that swallowed collagen rebuilds a joint.
Laboratory anti-inflammatory properties are not the same as a clinically meaningful result. Ingredients described as antiinflammatory have not been shown to restore joint health. The exact standardised extract used in a trial matters, and popular supplements should not be stacked without a purpose or stop rule.
Turmeric in food is different from a concentrated medicine. The TGA warns that concentrated turmeric medicines can rarely cause severe liver injury. Stop and seek care for yellow skin or eyes, dark urine, unusual fatigue, nausea, abdominal pain or loss of appetite.
Vitamin D supplements are appropriate for established vitamin D indications, not as routine treatment for this joint disease. Taking supplements without a documented need can add cost, interactions and duplicate ingredients.
Omega-3 Fatty Acids and Fish Oil for OA
The RACGP suggests not offering these fatty acids for knee or hip osteoarthritis. Evidence from inflammatory arthritis cannot be transferred to the condition because the diseases and treatments differ. EPA and DHA content, not “fish oil” weight alone, determines the long-chain omega-3 amount.
Fish oil can cause gastrointestinal effects and may add bleeding concerns with a blood thinner or antiplatelet medicine. It does not replace NSAIDs, disease-specific medicines or a movement plan. Arrange a full medicine and supplement review.
Supplements for Arthritis: A Safe Time-Limited Trial
If a clinician agrees that a dietary supplement is reasonable for managing arthritis, define the exact product, target symptom and review date. Supplements may cause side effects, so record pain and function before starting, avoid changing several things at once and stop for adverse effects or no meaningful benefit. “Generally safe” does not mean risk-free.
Check the AUST number where applicable, standardised ingredient, elemental or extract amount, allergens, medicine interactions and one-day dose. Do not copy doses from research results or assume that two products with similar front labels are equivalent.
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Osteoarthritis Questions
What are the best supplements to take for osteoarthritis?
There is no universal best option. Australian guidance recommends against routine glucosamine, chondroitin, vitamin D and omega-3 use for knee or hip disease. Product-specific turmeric extract, Boswellia and collagen studies provide short-term signals, but evidence and safety need individual review.
Which two supplements are commonly taken together for the treatment of osteoarthritis?
Glucosamine and chondroitin are commonly combined, but popularity is not efficacy. The RACGP suggests not offering the combination for knee or hip disease, and formulations should not be treated as interchangeable.
What do Japanese take for arthritis?
There is no single Japanese remedy or national supplement protocol. Glucosamine, chondroitin and collagen products are sold in Japan as in other countries, but country of use does not establish benefit. Care should follow the diagnosis and evidence.
What can I take to improve osteoarthritis?
Start with a person-specific management plan: education, appropriate exercise, physical activity, weight management where relevant and medicine review. A supplement is optional and adjunctive, not a way to reverse the disease.
Arthritis References
- Australian Commission on Safety and Quality in Health Care. Knee Clinical Care Standard 2024. Updated 30 April 2026.
- Royal Australian College of General Practitioners. Knee and hip OA guideline. Second edition, 2018.
- Liu X, et al. Dietary supplements evidence synthesis. British Journal of Sports Medicine. 2018;52(3):167-175. PMID 29018060. doi:10.1136/bjsports-2016-097333.
- García-Coronado JM, et al. Collagen supplementation and knee disease: updated evidence synthesis. 2024. PMID 39212129.
- Therapeutic Goods Administration. Turmeric medicine liver warning. 15 August 2023.
This article provides general education, not personalised medical advice.
