The baseline characteristics of participants were no different between the two groups (Table 1). The study population had a mean age of 60 years, a female predominance (approximately 90%), and a body mass index of 26 kg/m2. Nearly 60% of them had unilateral knee OA. Few patients (7%) used walking aids. Only one-third used knee support and took pain relief medication. Three-quarters of them performed knee exercise (one to seven times/week). The WOMAC total, WOMAC pain, WOMAC stiffness, and WOMAC function at baseline scores were higher than 5 out of 10 and were no different between groups. The 6-minute walk distance was 304 meters and 310 meters in the ibuprofen and C. domestica extracts groups. The numbers of knee X-rays with II–IV grading classified by Kellgren–Lawrence criteria were 138 (86.8%) versus (vs) 150 (87.7%) in the ibuprofen and C. domestica extracts groups, respectively, with no difference.