Fall & winter care
Innovare TxRegenerative & Wellness
Joint pain · Supplement evidence guide

Best Supplements Studied for Joint Pain

This is a list of the supplements most studied for joint pain, not a list of supplements that work. For several of them the evidence is negative, and the American College of Rheumatology recommends against them for osteoarthritis. Here is what the research says about each, and what to check before you take anything.

Book Your Visit (214) 233-3094
In short
The ACR recommends against glucosamine and chondroitin (strongly) and against fish oil and vitamin D (conditionally) for osteoarthritis in its 2026 guideline update. Turmeric/curcumin, Boswellia, collagen, SAMe and avocado-soybean unsaponifiables have some positive studies, but effects are small or the evidence is limited. Supplements can interact with medicines, including blood thinners, so tell your clinician what you take.

Published by Innovare Tx · Facts last checked September 23, 2026 · Educational information, not medical advice.

How we chose this list

  • Included the supplements most often studied or asked about for joint pain, mainly osteoarthritis.
  • For each one we report the current ACR position where there is one (the 2026 update summary, with the 2019 guideline noted only where it differs or explains why), what NIH sources say, and known safety concerns.
  • Listed because they have been studied, not because they work. Several carry recommendations against their use.
  • No brands and no doses. Dose, product quality and interactions are questions for your clinician or pharmacist.

  1. 1. Glucosamine

    Glucosamine is one of the most widely used joint supplements, and one of the clearest negatives. The ACR's 2026 update strongly recommends against it for knee, hip and hand osteoarthritis. The 2019 guideline explained why: the studies with the lowest risk of bias fail to show important benefit over placebo, and industry-funded and publicly funded trials disagree.

    Guidelines do not all agree: NCCIH notes that the American Academy of Orthopaedic Surgeons lists it among supplements that may be helpful for mild-to-moderate knee osteoarthritis. On safety, NCCIH says glucosamine may raise blood glucose and, with chondroitin, may increase bleeding risk in people taking warfarin.

    • ACR 2026: strongly recommended against for knee, hip and hand OA
    • May raise blood sugar (NCCIH); check with your clinician if you have diabetes
    • Possible bleeding risk with warfarin (NCCIH)

    Checked on: Kolasinski SL, et al. 2019 ACR/Arthritis Foundation Guideline for the Management of Osteoarthritis of the Hand, Hip, and Knee. Arthritis Care Res. 2020 · American College of Rheumatology: 2026 Update of the Recommendations for the Management of Osteoarthritis of the Knee, Hip, and Hand (summary) · NCCIH (NIH): Glucosamine and Chondroitin for Osteoarthritis

  2. 2. Chondroitin (and glucosamine-chondroitin combinations)

    The ACR's 2026 update strongly recommends against chondroitin and glucosamine-chondroitin combinations for knee, hip and hand osteoarthritis. That is a change for the hand: in 2019 the ACR had conditionally recommended chondroitin for hand osteoarthritis, based on a single trial.

    NCCIH describes the overall research as inconsistent and says it is still uncertain whether these supplements meaningfully affect symptoms or joint structure. Like glucosamine, chondroitin may increase bleeding risk with warfarin.

    • ACR 2026: strongly recommended against for knee, hip and hand OA
    • Research described as inconsistent (NCCIH)
    • Possible bleeding risk with warfarin (NCCIH)

    Checked on: Kolasinski SL, et al. 2019 ACR/Arthritis Foundation Guideline for the Management of Osteoarthritis of the Hand, Hip, and Knee. Arthritis Care Res. 2020 · American College of Rheumatology: 2026 Update of the Recommendations for the Management of Osteoarthritis of the Knee, Hip, and Hand (summary) · NCCIH (NIH): Glucosamine and Chondroitin for Osteoarthritis · NCCIH (NIH): Osteoarthritis: In Depth

  3. 3. Fish oil (omega-3)

    Fish oil is the most commonly used dietary supplement in the U.S., according to the 2019 ACR guideline, but for osteoarthritis the evidence is thin. The ACR's 2026 update conditionally recommends against fish oil for knee, hip and hand osteoarthritis. The 2019 guideline found only one published trial in osteoarthritis, and it did not show a higher dose working better than a lower one.

    Rheumatoid arthritis is a different story: NCCIH reports reviews finding that omega-3-rich diets may improve pain and joint swelling in RA, and advises not changing prescribed RA medicines without your provider. NCCIH lists side effects as usually mild, such as an unpleasant taste, bad breath, heartburn, nausea and diarrhea. If you take a blood thinner, ask your clinician before starting fish oil.

    • ACR 2026: conditionally recommended against for osteoarthritis
    • Some evidence for omega-3-rich diets in rheumatoid arthritis (NCCIH)
    • Ask first if you take a blood thinner

    Checked on: Kolasinski SL, et al. 2019 ACR/Arthritis Foundation Guideline for the Management of Osteoarthritis of the Hand, Hip, and Knee. Arthritis Care Res. 2020 · American College of Rheumatology: 2026 Update of the Recommendations for the Management of Osteoarthritis of the Knee, Hip, and Hand (summary) · NCCIH (NIH): Omega-3 Supplements: What You Need To Know

  4. 4. Vitamin D

    The ACR's 2026 update conditionally recommends against vitamin D for knee, hip and hand osteoarthritis. The 2019 guideline noted that some trials showed small effects, others showed none, and pooled data were null.

    Vitamin D still matters for bone health, and your clinician may recommend it if a blood test shows a low level or you have risk factors for osteoporosis. More is not better: MedlinePlus explains that too much vitamin D can raise blood calcium, which can cause kidney damage, kidney stones, confusion, nausea and vomiting, and that toxicity almost always comes from taking too many supplements.

    • ACR 2026: conditionally recommended against for osteoarthritis
    • May still be advised for a low level or bone health
    • Too much can be harmful (MedlinePlus)

    Checked on: Kolasinski SL, et al. 2019 ACR/Arthritis Foundation Guideline for the Management of Osteoarthritis of the Hand, Hip, and Knee. Arthritis Care Res. 2020 · American College of Rheumatology: 2026 Update of the Recommendations for the Management of Osteoarthritis of the Knee, Hip, and Hand (summary) · MedlinePlus (NIH): Vitamin D

  5. 5. Turmeric / curcumin

    NCCIH reports that several meta-analyses of oral turmeric or curcumin for knee osteoarthritis pain and stiffness are positive so far, but that higher-quality evidence is needed. It is unclear whether topical curcumin has any effect on knee osteoarthritis pain. Turmeric does not appear in the ACR 2026 recommendations.

    Safety is the bigger issue. NCCIH notes that liver damage has been reported in some people using curcumin products designed for higher absorption, that oral turmeric can cause nausea, reflux, stomach upset, diarrhea or constipation, and that turmeric supplements may be unsafe in pregnancy. If you take any medicine, talk with your clinician before using it.

    • Early evidence positive; higher-quality studies needed (NCCIH)
    • Liver injury reported with some high-absorption products (NCCIH)
    • Not advised in pregnancy (NCCIH)

    Checked on: NCCIH (NIH): Turmeric

  6. 6. Boswellia (Indian frankincense)

    Boswellia is a gum resin extract used traditionally in Ayurveda. NCCIH says several studies suggest oral Boswellia may help reduce inflammation and pain associated with osteoarthritis, but larger, higher-quality studies are needed. Its osteoarthritis overview adds that the improvements seen were slight, possibly too small for patients to consider meaningful.

    NCCIH describes oral Boswellia as likely safe in clinical trials lasting up to 6 months. It is not addressed in the ACR 2026 recommendations. Tell your clinician before starting it, as with any supplement.

    • Small improvements in studies; better research needed (NCCIH)
    • Likely safe in trials up to 6 months (NCCIH)
    • Not rated by the ACR

    Checked on: NCCIH (NIH): Boswellia · NCCIH (NIH): Osteoarthritis: In Depth

  7. 7. Collagen

    Collagen products (hydrolyzed collagen peptides and undenatured type II collagen) are newer to the research. A 2024 meta-analysis of 35 randomized trials, published in Osteoarthritis and Cartilage, found small-to-moderate improvements in pain (moderate certainty) and function (high certainty) compared with control, and no increase in side effects or withdrawals.

    That is more encouraging than most supplements on this list, but it is one review of many different products, and collagen is not addressed in the ACR 2026 update summary. It does not rebuild cartilage. If you try it, treat it as an add-on to exercise and weight management, and let your clinician know.

    • 2024 meta-analysis: small-to-moderate effects on pain and function
    • No increase in side effects in that review
    • Not rated in the ACR 2026 summary

    Checked on: Liang CW, et al. Efficacy and safety of collagen derivatives for osteoarthritis: A trial sequential meta-analysis. Osteoarthritis Cartilage. 2024 · American College of Rheumatology: 2026 Update of the Recommendations for the Management of Osteoarthritis of the Knee, Hip, and Hand (summary)

  8. 8. SAMe (S-adenosyl-L-methionine)

    NCCIH reports mixed results: in some studies SAMe gave similar pain relief and joint function to NSAIDs with fewer side effects, but placebo-controlled studies were less conclusive.

    SAMe has real interaction risks. NCCIH warns it might interact with antidepressants and other drugs or supplements that raise serotonin, may decrease the effect of levodopa used for Parkinson's disease, and may worsen mania in people with bipolar disorder. Do not start it without talking to your clinician.

    • Mixed results; placebo-controlled studies less conclusive (NCCIH)
    • Interacts with antidepressants and levodopa (NCCIH)
    • Not for people with bipolar disorder unless supervised (NCCIH)

    Checked on: NCCIH (NIH): S-Adenosyl-L-Methionine (SAMe): In Depth · NCCIH (NIH): Osteoarthritis: In Depth

  9. 9. Avocado-soybean unsaponifiables (ASU)

    ASU is an extract made from avocado and soybean oils. NCCIH's osteoarthritis overview reports slight improvements in pain and function in studies, small enough that patients might not consider them meaningful.

    ASU is not addressed in the ACR 2026 recommendations. If you have a soy or avocado allergy, ask before taking it.

    • Slight improvements in studies (NCCIH)
    • Not rated by the ACR

    Checked on: NCCIH (NIH): Osteoarthritis: In Depth

Before you take any supplement

Supplements are not a substitute for the treatments with the strongest evidence for osteoarthritis: exercise, weight loss if you are overweight, and the other options your clinician can discuss. They can also interact with prescription medicines.

Bring every supplement bottle, or a photo of each label, to your visit. The Innovare Tx knee program already asks patients to bring a current medication list, including blood thinners.

  • Tell your clinician and pharmacist about every supplement you take
  • Ask first if you take a blood thinner, antidepressant, diabetes medicine or Parkinson's medicine
  • Stop and call your clinician for yellowing skin or eyes, dark urine, unusual bruising or bleeding, or a new rash
  • Ask about pregnancy or breastfeeding before taking any supplement
  • If a supplement has not helped after a fair trial agreed with your clinician, stop spending money on it

Frequently asked questions

None has strong evidence. The ACR recommends against glucosamine, chondroitin, fish oil and vitamin D for osteoarthritis. Collagen, turmeric/curcumin, Boswellia, SAMe and ASU have some positive studies, but effects are small or the research is limited. Exercise and weight loss have much stronger support.
The 2019 ACR guideline notes large placebo effects in glucosamine trials, and that the best-quality studies do not show important benefit over placebo. Joint pain also naturally goes up and down, which makes any supplement look like it worked on a good week.
Not always. NCCIH notes glucosamine and chondroitin may increase bleeding risk with warfarin. Ask your clinician or pharmacist before combining any supplement with a blood thinner.
No supplement has been shown to rebuild cartilage. NCCIH says it is still uncertain whether glucosamine and chondroitin have a meaningful impact on symptoms or joint structure.
An evaluation first, then a plan built around the options with the strongest evidence, such as exercise and physical therapy, and weight management where it applies. See the Knee Program, the knee FAQ or book an evaluation.

Sources

Keep reading

Related guides

Best Foods for Joint Health

Eating patterns with real evidence behind them for sore joints and arthritis, what food cannot do, and why weight matters so much for knees and hips.

Read

Best Evidence-Based Treatments for Knee Osteoarthritis

What the American College of Rheumatology recommends for knee osteoarthritis, from exercise and weight loss to injections, and what it recommends against.

Read

Best Exercises for Knee Osteoarthritis

Ten exercises for knee osteoarthritis, how to do each one, a common starting dose, and when to stop. Based on ACR, AAOS and Arthritis Foundation guidance.

Read

At Innovare Tx

Talk it through with a clinician

A list is a starting point. Book an evaluation at our Addison clinic, or call and we will verify your insurance before you come in.

Book Your Visit (214) 233-3094
Call UsRequest a Visit