Mediterranean Diet and Disease Activity in Axial Spondyloarthritis Receiving Biologic Therapy

"A structured Mediterranean diet program designed and supervised by a dietitian. The program emphasizes high consumption of olive oil, vegetables, fruits, legumes, whole grains, and fish; moderate intake of dairy and poultry; and low intake of red meat and processed foods. Adherence will be monitored through 10-day interval follow-up phone calls. Assessments will be conducted at baseline and 3 months"

Participants will continue their standard medical treatment and will receive general healthy eating advice, as routinely recommended in clinical practice. No additional structured dietary program will be provided. Assessments will be performed at baseline and at 3 months.