Study: Daily Fiber Supplements May Help Reduce Arthritis Pain

A recent scientific study has revealed that daily intake of fiber supplements may help reduce pain and improve physical strength in individuals suffering from knee pain related to osteoarthritis, one of the most common joint disorders among adults.

Researchers explained that a type of prebiotic fiber known as inulin is naturally found in vegetables such as dandelion root and artichokes. It is also widely available as a dietary supplement in powder or capsule form at a relatively low cost.

The study suggests that incorporating this fiber into daily meals could help alleviate pain and improve mobility in people with knee osteoarthritis, a condition that occurs when the protective cartilage at the ends of bones gradually wears down, leading to pain and stiffness in the joints.

Dietary changes as a potential treatment
Current treatment options for arthritis often rely on painkillers or intensive physical therapy. However, some patients struggle to maintain long-term physical therapy programs, while frequent use of pain medication may lead to unwanted side effects.

According to Dr. Aphrodite Kouraki, the lead researcher of the study, adding a simple fiber supplement to foods like breakfast cereals or yogurt could represent a small dietary change with meaningful benefits for pain reduction and physical function.

Impact on gut bacteria
The researchers also explained that inulin acts as a prebiotic that nourishes beneficial gut bacteria. This process leads to the production of short-chain fatty acids such as butyrate, which are known for their anti-inflammatory effects and potential role in reducing pain perception.

The study included 117 adults with knee osteoarthritis who participated in the INSPIRE clinical trial. Participants were randomly assigned to receive inulin supplements, physical therapy, a combination of both, or a placebo, and their progress was monitored over six weeks.

The findings showed that daily inulin intake and physical therapy each independently reduced knee pain. Fiber supplementation also improved grip strength and lowered pain sensitivity among participants.