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Evidence grade: C Well tolerated Vegetarian (synthetic) Few, small trials

MSM
Methylsulfonylmethane

MSM is the third name on many Indian joint-supplement labels. It's a simple sulphur compound, cheap, well tolerated, and made in a factory rather than from animals. The trouble is the evidence: a handful of small trials show modest benefits, and when the better ones were pooled, the effect on pain wasn't big enough to matter.

Updated: Sep 2026~7 min read6 citations
N
Naked Compound Research TeamAbout the authors →
6.34 mm
Pooled pain reduction on a 100 mm scale for MSM and DMSO vs control in knee osteoarthritis. Neither statistically nor clinically significant (Brien 2011).
25% vs 13%
Pain reduction on 6 g/day MSM vs placebo after 12 weeks in a 50-person pilot trial (Kim 2006). The best single result, from a small study.
~4 g/day
Daily intake up to which MSM was well tolerated in the studies reviewed, with only mild side effects (Butawan 2017).
1 g
Typical MSM per serving in Indian single-ingredient products, below the 3–6 g/day in the more positive trials.
On this page

What MSM is

MSM (methylsulfonylmethane) is a small sulphur-containing molecule. It occurs naturally in small amounts in some foods, including onion and garlic, but supplement MSM is made industrially by oxidising DMSO (dimethyl sulfoxide) with hydrogen peroxide and then purifying it. That makes it one of the few joint ingredients that isn't animal-derived. [1]

It's promoted as a sulphur source for connective tissue and as an anti-inflammatory. Lab studies show anti-inflammatory activity, but that hasn't translated into clearly meaningful pain relief in people. [1]

Clinical evidence — what the trials show

StudyDoseDurationnKey findingGrade
Kim et al. (2006) — Osteoarthritis Cartilage
ScienceDirect		 MSM 3 g twice daily (6 g/day) vs placebo12 weeks50 Pain fell 25.1% (14.6 mm) on MSM vs 13.2% (7.3 mm) on placebo, and physical function improved. Stiffness and total symptom scores didn't change significantly. The authors called it a pilot; long-term benefit and safety couldn't be confirmed. B
Usha & Naidu (2004) — Clin Drug Investig
doi:10.2165/00044011-200424060-00005		 MSM 500 mg, glucosamine 500 mg, both, or placebo, 3× daily12 weeks118 MSM, glucosamine and the combination all improved osteoarthritis symptoms vs placebo. The MSM group reported a 33% fall in pain. B
Debbi et al. (2011) — BMC Complement Altern Med
doi:10.1186/1472-6882-11-50		 MSM 1.125 g 3× daily (3.375 g/day) vs placebo12 weeks49 Modest improvements in pain, physical function and quality of life vs placebo. B
Brien et al. (2011) — Evid Based Complement Alternat Med
doi:10.1093/ecam/nep045		 MSM and DMSOMeta-analysis, 3 RCTs326 Pooled pain reduction of 6.34 mm on a 100 mm scale, neither statistically nor clinically significant. The authors concluded MSM and DMSO are not clinically effective for osteoarthritis pain on current evidence. A

An earlier systematic review by the same group reached a similar verdict: the mechanism is plausible, but the trials are too few and too small to draw a firm conclusion. [6] Every MSM trial is small, short (12 weeks) and limited to knee osteoarthritis.

Dose

✓

If you try it

Trials used about 1.5–6 g/day, split into 2–3 doses. The clearest positive result came from 3 g twice daily. [2] Give it 12 weeks, the length of every trial, and stop if your pain hasn't clearly improved. Most Indian products provide 1 g per tablet, so reaching trial doses means several tablets a day.

India products

ProductPriceMSM / servingScoreOur take
Carbamide Forte MSM 1000 mg₹349 / 90ct1 g7.5 (B)NABL COA and the lowest price. The pick if you want standalone MSM.
Himalayan Organics MSM₹499 / 60ct1 g6.5 (C)Same dose, higher price, no COA.
Now Foods Glucosamine + MSM₹1,299 / 180ct1.5 g + glucosamine 1.5 g8.0 (A)USP-verified quality. The MSM is a small addition to the glucosamine.
Puritan's Pride Triple Glucosamine₹1,499 / 90ct0.5 g + glucosamine + chondroitin7.5 (B)MSM well below trial doses. It's there to be on the label.
Solgar Glucosamine Hyaluronic Acid Chondroitin MSM₹2,499 / 120ctPart of a four-compound formula8.3 (A)Premium manufacturing. Full review →

Scores and prices come from our product database (2026). Scores rate product quality, not whether MSM works. See also our glucosamine and chondroitin pages.

Safety

Well tolerated

Mild side effects only

MSM is GRAS (Generally Recognized as Safe) in the US and was well tolerated at up to about 4 g/day in the studies reviewed. The few reported side effects are mild. [1] None of the trials reported major adverse events. [2]

Unknowns

Long-term use, pregnancy

The trials lasted 12 weeks, so long-term safety data are limited. There's no good data in pregnancy or breastfeeding. Avoid it then unless a doctor advises otherwise.

Scoring rubric — full breakdown

1. Evidence quality

4.5/10

Three small, short trials with modest positive results, and a meta-analysis finding no clinically meaningful effect. There are no large or long-term trials. [2][3][4][5]

2. Dosage confidence

5.5/10

Trials used a wide range (1.5–6 g/day), and no dose-comparison trial exists. Most products are dosed below the more positive trials.

3. India market fit

6.5/10

Synthetic and vegetarian-friendly, cheap, and available from a domestic brand with a COA. Held back by weak efficacy.

4. Safety profile

8.5/10

GRAS status and a clean short-term safety record. We deduct only for the lack of long-term data. [1]

5. Label accuracy (tested)

6.0/10

A simple molecule that's easy to label accurately, but we found no independent Indian testing, and combination products often include token amounts.

Frequently asked questions

Does MSM work for joint pain?

The evidence is thin. A few small trials found modest improvements in knee pain, but a 2011 meta-analysis pooling the higher-quality trials of MSM and its parent compound DMSO found the pain reduction was neither statistically nor clinically significant.

How much MSM should I take?

Trials have used roughly 1.5 g to 6 g per day. The trial with the clearest positive result used 3 g twice daily. Most Indian products provide 1 g per serving.

Is MSM safe?

It has a good safety record. It is Generally Recognized as Safe (GRAS) in the US, and a 2017 review found it well tolerated at up to about 4 g per day, with few and mild side effects. It is made synthetically, not from animals.

References

  1. 1
    Butawan M, Benjamin RL, Bloomer RJ. Methylsulfonylmethane: applications and safety of a novel dietary supplement. Nutrients. 2017;9(3):290.doi:10.3390/nu9030290
  2. 2
    Kim LS, Axelrod LJ, Howard P, Buratovich N, Waters RF. Efficacy of methylsulfonylmethane (MSM) in osteoarthritis pain of the knee: a pilot clinical trial. Osteoarthritis Cartilage. 2006;14:286–94. ScienceDirect
  3. 3
    Usha PR, Naidu MUR. Randomised, double-blind, parallel, placebo-controlled study of oral glucosamine, methylsulfonylmethane and their combination in osteoarthritis. Clin Drug Investig. 2004;24:353–63.doi:10.2165/00044011-200424060-00005
  4. 4
    Debbi EM, et al. Efficacy of methylsulfonylmethane supplementation on osteoarthritis of the knee: a randomized controlled study. BMC Complement Altern Med. 2011;11:50.doi:10.1186/1472-6882-11-50
  5. 5
    Brien S, Prescott P, Lewith G. Meta-analysis of the related nutritional supplements dimethyl sulfoxide and methylsulfonylmethane in the treatment of osteoarthritis of the knee. Evid Based Complement Alternat Med. 2011.doi:10.1093/ecam/nep045
  6. 6
    Brien S, et al. Systematic review of the nutritional supplements dimethyl sulfoxide (DMSO) and methylsulfonylmethane (MSM) in the treatment of osteoarthritis. Osteoarthritis Cartilage. 2008. oarsijournal.com

Medical note. This page is educational and not a diagnosis. Persistent joint pain deserves an assessment by a doctor or physiotherapist; strengthening exercise has far better evidence than any joint supplement.

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