Probiotics for Arthritis: Can Gut Health Reduce Joint Pain and Inflammation?
Updated: Aug 24
By Dr. Jeffrey Peng, MD · Updated August 2026
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Emerging research suggests that probiotics may play a meaningful role in managing arthritis symptoms. While arthritis has traditionally been viewed as a condition limited to the joints, a growing body of evidence now points to the gut microbiome as a significant contributor to the chronic inflammation that drives joint pain and stiffness.
How Are Gut Health and Arthritis Connected?
Imbalances in the gut microbiome (gut dysbiosis) may significantly influence arthritis symptoms. The gut microbiome plays a critical role in regulating the immune system. When the balance between beneficial and harmful bacteria is disrupted, it can trigger chronic low-grade systemic inflammation. The same inflammatory markers elevated in metabolic syndrome, such as C-reactive protein (CRP), are frequently elevated in patients with arthritis, and higher levels correlate with more severe symptoms.
What Does the Research Say About Probiotics for Arthritis?
A large systematic review and meta-analysis of 34 randomized controlled trials across eight types of inflammatory arthritis found that probiotic intervention reduced C-reactive protein levels in rheumatoid arthritis and improved joint pain and stiffness in osteoarthritis. None of the included trials reported a significant increase in adverse events.
A focused meta-analysis on osteoarthritis found that probiotics containing Lactobacillus casei Shirota demonstrated significant reductions in pain and inflammatory markers such as high-sensitivity CRP. A randomized trial of Saccharomyces boulardii in overweight or obese patients with knee osteoarthritis showed significant reductions in pain intensity, decreased use of pain medications, and improvements in both inflammatory and oxidative stress markers.
Best Probiotic Strains for Arthritis
Lactobacillus casei Shirota — strongest evidence for reducing pain and inflammatory markers in osteoarthritis.
Saccharomyces boulardii — significant pain reduction, decreased medication use, and improvements in inflammatory and oxidative stress markers in knee osteoarthritis.
Bifidobacterium species — may contribute to improved gut microbial balance and reduced systemic inflammation.
Natural Food Sources of Probiotics
Yogurt with live active cultures, kefir, sauerkraut, kimchi, miso, and tempeh are excellent natural sources. Choose plain, unsweetened options when possible to avoid added sugars that can contribute to inflammation.
Bottom Line
Probiotics are generally well-tolerated and may help reduce arthritis pain and systemic inflammation when the right strains are used. They work best as part of a broader plan that includes an anti-inflammatory diet, exercise, and evidence-based joint treatments.
If you are interested in a comprehensive approach to managing arthritis, schedule a consultation to discuss options tailored to your situation.
References
1. Zeng L, et al. Safety and efficacy of probiotic supplementation in 8 types of inflammatory arthritis. Front Immunol. 2022. doi:10.3389/fimmu.2022.961325.
2. Moyseos M, et al. The effect of probiotics on pain and inflammation in osteoarthritis. Nutrients. 2024. doi:10.3390/nu16142243.
3. Dolatkhah N, et al. Saccharomyces boulardii in overweight/obese knee osteoarthritis. Eur J Nutr. 2024. doi:10.1007/s00394-024-03428-5.
Medical Disclaimer: This content is for educational purposes only and does not substitute for the medical advice of a physician. Always consult your healthcare provider before beginning any new treatment program.
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