The Claim

Krill oil supplementation significantly improves joint function in adults with knee osteoarthritis, with a mean improvement of 14.01 points on the WOMAC function scale compared to placebo, and has a high probability of being among the most effective supplements for reducing stiffness.

Source: Comparative Effectiveness of Nutritional Supplements in the Treatment of Knee Osteoarthritis: A Network Meta-Analysis

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
73score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

Adults with knee osteoarthritis who take krill oil experience a measurable improvement in joint function, averaging 14.01 points higher on the WOMAC scale than those taking a placebo, and krill oil is among the most effective supplements for reducing joint stiffness.

See the scientific wording

Krill oil supplementation significantly improves joint function in adults with knee osteoarthritis, with a mean improvement of 14.01 points on the WOMAC function scale compared to placebo, and shows high probability of being among the most effective supplements for reducing stiffness.

Why this might work

Omega-3 fats from krill oil enter joint tissues and turn down inflammation signals, while a natural antioxidant in krill oil neutralizes harmful molecules that damage cartilage. This reduces swelling and pain, allowing the joint to move more easily.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Comparative Effectiveness of Nutritional Supplements in the Treatment of Knee Osteoarthritis: A Network Meta-Analysis

    The study found that people with knee arthritis who took krill oil felt better and moved more easily, improving their function score by 14 points — just like the claim said. It didn’t beat all other supplements, but it was one of the best for helping with movement.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.