Improving Gait in Persons With Knee Related Mobility Limitations by Rosenoids® Food Supplement: a Randomized Double-blind Placebo-controlled Trial

Inclusion Criteria: * Aged above 40 * Self-reported knee-related walking disability * In general good health, in the opinion of the Investigator, based on medical history and physical examination and, if necessary, laboratory values. Laboratory tests are prescribed by the Investigator at the screening visit. * A body mass index (BMI) of ≤35 kg/m2 * Speaks, reads and writes Danish language Exclusion Criteria: * Usage of Rosehip nutritional supplements within the last 3 months * History of symptoms of autoimmune disorders. * Planned surgical procedure during the duration of the study * History, diagnosis, or signs and symptoms of clinically significant neurological disease * Alcohol or drug abuse within the last 5 years * History, diagnosis, signs or symptoms of any clinically significant psychiatric disorder * Subjects with regional pain syndromes suggestive of lumbar compressions with radiculopathy or at risk of developing radiculopathy. * Any other condition, which in the opinion of the Investigator, would put the subject at increased safety risk or otherwise make the subject unsuitable for this study.